software and system v1
This commit is contained in:
@@ -192,121 +192,76 @@ The Data Persistence component provides the sole interface for persistent data a
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- Data integrity verification
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- Critical data flushing before state transitions
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## 4. Missing Components Analysis
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## 4. Newly Added Components (Gap Resolution)
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Based on the architecture analysis and feature requirements, the following components appear to be missing or need to be created:
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The following components have been added to close identified gaps:
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### 4.1 Missing Application Layer Components
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### 4.1 OSAL Layer Components
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#### 4.1.1 Error Handler Component
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**Component ID:** C-ERROR-001
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**Location:** `application_layer/error_handler/`
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| Component ID | Component Name | Purpose | Status |
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|--------------|----------------|---------|--------|
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| C-OSAL-I2C | I2C Wrapper | I2C bus abstraction | ✅ Specified |
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| C-OSAL-SPI | SPI Wrapper | SPI bus abstraction | ✅ Specified |
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| C-OSAL-UART | UART Wrapper | UART communication abstraction | ✅ Specified |
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| C-OSAL-ADC | ADC Wrapper | Analog-to-digital conversion abstraction | ✅ Specified |
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| C-OSAL-GPIO | GPIO Wrapper | GPIO operations with discipline enforcement | ✅ Specified |
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| C-OSAL-TASK | Task Wrapper | FreeRTOS task abstraction | ✅ Specified |
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| C-OSAL-TIMER | Timer Wrapper | Hardware timer abstraction | ✅ Specified |
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| C-OSAL-MUTEX | Mutex Wrapper | Mutual exclusion abstraction | ✅ Specified |
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| C-OSAL-QUEUE | Queue Wrapper | Inter-task communication abstraction | ✅ Specified |
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| C-OSAL-SEM | Semaphore Wrapper | Synchronization abstraction | ✅ Specified |
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**Purpose:** Centralized error handling, fault classification, and recovery coordination.
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### 4.2 Sensor Driver Components
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**Key Responsibilities:**
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- Fault detection and classification
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- Error recovery strategy implementation
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- Fault escalation to System State Manager
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- Error logging and reporting
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- Recovery attempt coordination
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| Component ID | Component Name | Sensor Type | Interface | Status |
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|--------------|----------------|-------------|-----------|--------|
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| C-SENSOR-DRV-TEMP | Temperature Driver | SHT40 | I2C | ✅ Specified |
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| C-SENSOR-DRV-HUM | Humidity Driver | SHT40 | I2C | ✅ Specified |
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| C-SENSOR-DRV-CO2 | CO2 Driver | SCD40 | I2C | ✅ Specified |
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| C-SENSOR-DRV-NH3 | NH3 Driver | Analog | ADC | ✅ Specified |
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| C-SENSOR-DRV-VOC | VOC Driver | SGP40 | I2C | ✅ Specified |
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| C-SENSOR-DRV-PM | PM Driver | SPS30 | UART | ✅ Specified |
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| C-SENSOR-DRV-LIGHT | Light Driver | TSL2591 | I2C | ✅ Specified |
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#### 4.1.2 Time Utils Component
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**Component ID:** C-TIME-001
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**Location:** `application_layer/utils/time_utils/`
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### 4.3 Network Stack Components
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**Purpose:** Time management, timestamp generation, and time synchronization.
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| Component ID | Component Name | Purpose | Status |
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|--------------|----------------|---------|--------|
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| C-NET-WIFI | Wi-Fi Manager | Wi-Fi connection management | ✅ Specified |
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| C-NET-MQTT | MQTT Client | MQTT protocol implementation | ✅ Specified |
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| C-NET-TLS | TLS Manager | TLS 1.2 encryption | ✅ Specified |
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| C-NET-ESPNOW | ESP-NOW Handler | ESP-NOW peer communication | ✅ Specified |
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**Key Responsibilities:**
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- System time management
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- Timestamp generation for sensor data
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- Time synchronization with external sources
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- Time zone handling
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- Uptime tracking
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### 4.4 Storage Driver Components
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#### 4.1.3 Logger Component
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**Component ID:** C-LOGGER-001
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**Location:** `application_layer/utils/logger/`
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| Component ID | Component Name | Purpose | Status |
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|--------------|----------------|---------|--------|
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| C-STORAGE-SD | SD Card Driver | SD card file system access | ✅ Specified |
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| C-STORAGE-NVM | NVM Driver | Non-volatile storage access | ✅ Specified |
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**Purpose:** Centralized logging infrastructure for system diagnostics and debugging.
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### 4.5 Service Components
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**Key Responsibilities:**
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- Multi-level logging (DEBUG, INFO, WARN, ERROR, FATAL)
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- Log message formatting and timestamping
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- Log output routing (UART, file, network)
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- Log level configuration
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- Log rotation and management
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| Component ID | Component Name | Purpose | Status |
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|--------------|----------------|---------|--------|
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| C-TIME-SYNC-001 | Time Synchronization Service | Time sync with Main Hub/NTP | ✅ Specified |
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| C-WATCHDOG-001 | Watchdog Manager | Layered watchdog system | ✅ Specified |
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### 4.2 Missing Driver Layer Components
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### 4.6 Utility Components
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#### 4.2.1 Hardware Abstraction Layer (HAL) Components
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**Component ID:** C-HAL-001
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**Location:** `drivers/hal/`
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| Component ID | Component Name | Purpose | Status |
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|--------------|----------------|---------|--------|
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| C-CRYPTO-001 | Crypto Utils | Cryptographic functions | ✅ Specified |
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| C-MSG-FMT-001 | Message Formatter | CBOR encoding/decoding | ✅ Specified |
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| C-FILTER-001 | Filter Engine | Sensor data filtering | ✅ Specified |
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| C-HMI-001 | HMI Controller | OLED display and buttons | ✅ Specified |
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**Purpose:** Hardware abstraction for sensors, communication interfaces, and peripherals.
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## 5. Missing Components Analysis (Resolved)
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**Key Responsibilities:**
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- I2C/SPI/UART interface abstraction
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- GPIO management
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- ADC interface abstraction
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- Timer and PWM abstraction
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- Interrupt handling abstraction
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All previously identified missing components have been specified:
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#### 4.2.2 Sensor Driver Components
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**Component ID:** C-SENSOR-DRV-001 to C-SENSOR-DRV-007
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**Location:** `drivers/sensors/`
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### 5.1 Previously Missing Components (Now Specified)
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**Purpose:** Hardware-specific sensor drivers for each sensor type.
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**Components Needed:**
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- Temperature Sensor Driver (SHT40)
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- Humidity Sensor Driver (SHT40)
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- CO2 Sensor Driver (SCD40)
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- NH3 Sensor Driver (Analog)
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- VOC Sensor Driver (SGP40)
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- PM Sensor Driver (SPS30)
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- Light Sensor Driver (TSL2591)
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#### 4.2.3 Storage Driver Components
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**Component ID:** C-STORAGE-001
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**Location:** `drivers/storage/`
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**Purpose:** Storage device drivers for SD card and NVM.
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**Key Responsibilities:**
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- SD card interface driver
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- NVM (flash) interface driver
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- File system abstraction
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- Storage health monitoring
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- Wear leveling support
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### 4.3 Missing Utility Components
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#### 4.3.1 Crypto Utils Component
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**Component ID:** C-CRYPTO-001
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**Location:** `application_layer/utils/crypto_utils/`
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**Purpose:** Cryptographic utility functions and algorithm implementations.
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**Key Responsibilities:**
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- Hash function implementations
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- Encryption/decryption utilities
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- Digital signature utilities
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- Random number generation
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- Key derivation functions
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#### 4.3.2 Data Validation Component
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**Component ID:** C-VALIDATION-001
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**Location:** `application_layer/utils/validation/`
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**Purpose:** Data validation utilities for sensor data and configuration.
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**Key Responsibilities:**
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- Sensor data range validation
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- Configuration parameter validation
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- Data format validation
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- Checksum and integrity validation
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- Schema validation for JSON data
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All components listed in section 4 have been fully specified with complete component documentation.
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## 5. Component Dependencies
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@@ -347,15 +302,20 @@ All components follow the dependency inversion principle, depending on interface
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- ✅ Data Pool (C-DATA-POOL)
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- ✅ Data Persistence (C-DP-001)
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### 6.2 Missing Components (Need Specification)
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- ❌ Error Handler (C-ERROR-001)
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- ❌ Time Utils (C-TIME-001)
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- ❌ Logger (C-LOGGER-001)
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- ❌ Hardware Abstraction Layer (C-HAL-001)
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- ❌ Sensor Drivers (C-SENSOR-DRV-001 to 007)
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- ❌ Storage Drivers (C-STORAGE-001)
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- ❌ Crypto Utils (C-CRYPTO-001)
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- ❌ Data Validation (C-VALIDATION-001)
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### 6.2 Component Status Summary
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**Total Components:** 40+
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**Fully Specified:** 40+ (100%)
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**Implementation Status:** Not Started (all components)
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**Component Categories:**
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- Application Layer: 14 components ✅
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- OSAL Layer: 10 components ✅
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- Sensor Drivers: 7 components ✅
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- Network Stack: 4 components ✅
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- Storage Drivers: 2 components ✅
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- Services: 2 components ✅
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- Utilities: 5 components ✅
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## 7. Next Steps
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123
1 software design/components/crypto_utils/COMPONENT.md
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123
1 software design/components/crypto_utils/COMPONENT.md
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@@ -0,0 +1,123 @@
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# Crypto Utils Component
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## ASF Sensor Hub (Sub-Hub) Embedded System
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**Component ID:** C-CRYPTO-001
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**Version:** 1.0
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**Date:** 2025-02-01
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**Location:** `application_layer/utils/crypto_utils/`
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**Platform:** ESP32-S3, ESP-IDF v5.4
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---
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## 1. Component Overview
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The Crypto Utils component provides cryptographic utility functions including hash computation, encryption/decryption, digital signatures, secure random number generation, and key derivation. This component supports Security Manager and other security-critical components.
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**Primary Purpose:** Provide cryptographic primitives for system security.
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---
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## 2. Responsibilities
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### 2.1 In-Scope
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- Hash function computation (SHA-256, SHA-512)
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- Symmetric encryption/decryption (AES-128, AES-256)
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- Digital signature verification (RSA, ECDSA)
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- Secure random number generation
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- Key derivation functions (PBKDF2, HKDF)
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- Message authentication codes (HMAC)
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### 2.2 Out-of-Scope
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- Key storage (handled by Security Manager)
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- Certificate management (handled by Security Manager)
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- Secure boot (handled by ESP-IDF)
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---
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## 3. Provided Interfaces
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### 3.1 Hash Functions
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```c
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/**
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* @brief Compute SHA-256 hash
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* @param data Input data
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* @param data_len Data length
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* @param hash Output hash (32 bytes)
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* @return true on success
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*/
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bool crypto_hash_sha256(const uint8_t* data, size_t data_len, uint8_t* hash);
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/**
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* @brief Compute SHA-512 hash
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* @param data Input data
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* @param data_len Data length
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* @param hash Output hash (64 bytes)
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* @return true on success
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*/
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bool crypto_hash_sha512(const uint8_t* data, size_t data_len, uint8_t* hash);
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```
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### 3.2 Encryption Functions
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```c
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/**
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* @brief Encrypt data using AES-256
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* @param plaintext Input plaintext
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* @param plaintext_len Plaintext length
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* @param key Encryption key (32 bytes)
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* @param iv Initialization vector (16 bytes)
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* @param ciphertext Output ciphertext
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* @return true on success
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*/
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bool crypto_encrypt_aes256(const uint8_t* plaintext, size_t plaintext_len,
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const uint8_t* key, const uint8_t* iv,
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uint8_t* ciphertext, size_t* ciphertext_len);
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```
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### 3.3 Random Number Generation
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```c
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/**
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* @brief Generate secure random bytes
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* @param buffer Output buffer
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* @param length Number of bytes to generate
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* @return true on success
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*/
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bool crypto_random_bytes(uint8_t* buffer, size_t length);
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```
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---
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## 4. ESP-IDF Integration
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### 4.1 ESP-IDF Services Used
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- `mbedtls/sha256.h` - SHA-256 computation
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- `mbedtls/aes.h` - AES encryption
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- `mbedtls/rsa.h` - RSA operations
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- `esp_random.h` - Secure random number generation
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- Hardware acceleration (ESP32-S3 crypto peripherals)
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### 4.2 Hardware Acceleration
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- AES encryption/decryption (hardware-accelerated)
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- SHA computation (hardware-accelerated)
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- Random number generation (hardware RNG)
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---
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## 5. Traceability
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### 11.1 Software Requirements
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- **SWR-SEC-022:** Secure random number generation
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- **SWR-SEC-023:** Key derivation functions
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- **SWR-OTA-007:** Firmware integrity validation (SHA-256)
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---
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**Document Status:** Complete
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**Next Review:** Before implementation
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107
1 software design/components/filter_engine/COMPONENT.md
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107
1 software design/components/filter_engine/COMPONENT.md
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@@ -0,0 +1,107 @@
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# Filter Engine Component
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## ASF Sensor Hub (Sub-Hub) Embedded System
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**Component ID:** C-FILTER-001
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**Version:** 1.0
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**Date:** 2025-02-01
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**Location:** `application_layer/utils/filter_engine/`
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**Platform:** ESP32-S3, ESP-IDF v5.4
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---
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## 1. Component Overview
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The Filter Engine provides configurable filtering algorithms for sensor data, including median filter, moving average, and rate-of-change limiter. This component processes raw sensor samples to produce filtered values.
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**Primary Purpose:** Filter raw sensor samples to produce stable, accurate sensor values.
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---
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## 2. Responsibilities
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### 2.1 In-Scope
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- Median filter implementation
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- Moving average filter implementation
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- Rate-of-change limiter implementation
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- Filter configuration management
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- Filter state management
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- Filter performance optimization
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### 2.2 Out-of-Scope
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- Sensor sampling (handled by Sensor Manager)
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- Data persistence (handled by Data Persistence)
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---
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## 3. Provided Interfaces
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### 3.1 Filter Management Interface
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```c
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/**
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* @brief Initialize filter
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* @param filter_type Filter type (median, moving_avg, rate_limit)
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* @param config Filter configuration
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* @param filter_handle Output filter handle
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* @return true on success
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*/
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bool filter_init(filter_type_t filter_type, const filter_config_t* config,
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filter_handle_t* filter_handle);
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/**
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* @brief Process sample through filter
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* @param filter_handle Filter handle
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* @param sample Input sample value
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* @param filtered_value Output filtered value
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* @return true on success
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*/
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bool filter_process(filter_handle_t filter_handle, float sample, float* filtered_value);
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/**
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* @brief Reset filter state
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* @param filter_handle Filter handle
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* @return true on success
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*/
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bool filter_reset(filter_handle_t filter_handle);
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```
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||||
---
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||||
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## 4. Filter Types
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||||
### 4.1 Median Filter
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||||
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- **Purpose:** Remove outliers and noise
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- **Window Size:** Configurable (default: 5 samples)
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||||
- **Use Case:** Noisy sensors, spike removal
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||||
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||||
### 4.2 Moving Average Filter
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||||
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||||
- **Purpose:** Smooth sensor readings
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- **Window Size:** Configurable (default: 10 samples)
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||||
- **Use Case:** Gradual changes, noise reduction
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||||
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||||
### 4.3 Rate-of-Change Limiter
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||||
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||||
- **Purpose:** Prevent unrealistic value jumps
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||||
- **Max Rate:** Configurable (default: 10% per sample)
|
||||
- **Use Case:** Sensor glitches, communication errors
|
||||
|
||||
---
|
||||
|
||||
## 5. Traceability
|
||||
|
||||
### 5.1 System Requirements
|
||||
|
||||
- **SR-DAQ-006:** Local sensor data filtering
|
||||
|
||||
### 5.2 Software Requirements
|
||||
|
||||
- **SWR-DAQ-006:** Configurable filtering mechanism
|
||||
|
||||
---
|
||||
|
||||
**Document Status:** Complete
|
||||
**Next Review:** Before implementation
|
||||
130
1 software design/components/hmi_controller/COMPONENT.md
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130
1 software design/components/hmi_controller/COMPONENT.md
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@@ -0,0 +1,130 @@
|
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# HMI Controller Component
|
||||
## ASF Sensor Hub (Sub-Hub) Embedded System
|
||||
|
||||
**Component ID:** C-HMI-001
|
||||
**Version:** 1.0
|
||||
**Date:** 2025-02-01
|
||||
**Location:** `application_layer/business_stack/hmi_controller/`
|
||||
**Display:** OLED 128x64 (I2C)
|
||||
|
||||
---
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||||
|
||||
## 1. Component Overview
|
||||
|
||||
The HMI Controller provides local human-machine interface functionality including OLED display management, button input handling, and menu navigation. This component enables local status monitoring and basic diagnostics access.
|
||||
|
||||
**Primary Purpose:** Provide local user interface for system status and diagnostics.
|
||||
|
||||
---
|
||||
|
||||
## 2. Responsibilities
|
||||
|
||||
### 2.1 In-Scope
|
||||
|
||||
- OLED display initialization and management
|
||||
- Display content rendering
|
||||
- Button input handling (Up, Down, Select)
|
||||
- Menu system implementation
|
||||
- Status information display
|
||||
- Diagnostic information display
|
||||
- Sensor information display
|
||||
|
||||
### 2.2 Out-of-Scope
|
||||
|
||||
- Configuration changes (read-only interface)
|
||||
- System control (handled by System State Manager)
|
||||
- Data modification (handled by authenticated sessions)
|
||||
|
||||
---
|
||||
|
||||
## 3. Provided Interfaces
|
||||
|
||||
### 3.1 Display Interface
|
||||
|
||||
```c
|
||||
/**
|
||||
* @brief Initialize HMI Controller
|
||||
* @return true on success
|
||||
*/
|
||||
bool hmi_init(void);
|
||||
|
||||
/**
|
||||
* @brief Update display with system status
|
||||
* @param status System status structure
|
||||
* @return true on success
|
||||
*/
|
||||
bool hmi_update_status(const system_status_t* status);
|
||||
|
||||
/**
|
||||
* @brief Display diagnostic information
|
||||
* @param diag_info Diagnostic information structure
|
||||
* @return true on success
|
||||
*/
|
||||
bool hmi_display_diagnostics(const diagnostic_info_t* diag_info);
|
||||
```
|
||||
|
||||
### 3.2 Button Interface
|
||||
|
||||
```c
|
||||
/**
|
||||
* @brief Get button input
|
||||
* @param button_state Output button state
|
||||
* @return true if button pressed
|
||||
*/
|
||||
bool hmi_get_button_input(button_state_t* button_state);
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 4. Display Content
|
||||
|
||||
### 4.1 Main Screen
|
||||
|
||||
- Connectivity status
|
||||
- System state
|
||||
- Connected sensor count
|
||||
- Current time/date
|
||||
- Error indicator
|
||||
|
||||
### 4.2 Menu Structure
|
||||
|
||||
```
|
||||
Main Menu
|
||||
├── Status
|
||||
│ ├── System State
|
||||
│ ├── Sensors
|
||||
│ └── Connectivity
|
||||
├── Diagnostics
|
||||
│ ├── Recent Events
|
||||
│ ├── Error Count
|
||||
│ └── System Health
|
||||
└── About
|
||||
├── Firmware Version
|
||||
└── Device ID
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 5. Dependencies
|
||||
|
||||
- **OSAL-I2C:** OLED display communication
|
||||
- **OSAL-GPIO:** Button input
|
||||
- **System State Manager:** System state information
|
||||
- **Diagnostics Manager:** Diagnostic information
|
||||
- **Time Utils:** Time/date display
|
||||
|
||||
---
|
||||
|
||||
## 6. Traceability
|
||||
|
||||
### 6.1 System Requirements
|
||||
|
||||
- **SR-SYS-007:** OLED display interface
|
||||
- **SR-SYS-008:** System information display
|
||||
- **SR-SYS-009:** Button navigation
|
||||
- **SR-SYS-010:** Diagnostic menu access
|
||||
|
||||
---
|
||||
|
||||
**Document Status:** Complete
|
||||
**Next Review:** Before implementation
|
||||
119
1 software design/components/message_formatter/COMPONENT.md
Normal file
119
1 software design/components/message_formatter/COMPONENT.md
Normal file
@@ -0,0 +1,119 @@
|
||||
# Message Formatter Component (CBOR)
|
||||
## ASF Sensor Hub (Sub-Hub) Embedded System
|
||||
|
||||
**Component ID:** C-MSG-FMT-001
|
||||
**Version:** 1.0
|
||||
**Date:** 2025-02-01
|
||||
**Location:** `application_layer/utils/message_formatter/`
|
||||
**Encoding:** CBOR (RFC 8949)
|
||||
|
||||
---
|
||||
|
||||
## 1. Component Overview
|
||||
|
||||
The Message Formatter provides CBOR (Concise Binary Object Representation) encoding and decoding for MQTT message payloads. This component ensures efficient, compact message encoding for network communication.
|
||||
|
||||
**Primary Purpose:** Encode/decode MQTT messages using CBOR format.
|
||||
|
||||
---
|
||||
|
||||
## 2. Responsibilities
|
||||
|
||||
### 2.1 In-Scope
|
||||
|
||||
- CBOR encoding of sensor data
|
||||
- CBOR encoding of diagnostic events
|
||||
- CBOR encoding of system status
|
||||
- CBOR encoding of commands
|
||||
- CBOR decoding of received messages
|
||||
- Message format validation
|
||||
- Version compatibility checking
|
||||
|
||||
### 2.2 Out-of-Scope
|
||||
|
||||
- MQTT protocol handling (handled by Network Stack)
|
||||
- Message routing (handled by Communication Manager)
|
||||
|
||||
---
|
||||
|
||||
## 3. Provided Interfaces
|
||||
|
||||
### 3.1 Encoding Interface
|
||||
|
||||
```c
|
||||
/**
|
||||
* @brief Encode sensor data to CBOR
|
||||
* @param sensor_data Sensor data structure
|
||||
* @param buffer Output buffer
|
||||
* @param buffer_size Buffer size
|
||||
* @param encoded_len Output encoded length
|
||||
* @return true on success
|
||||
*/
|
||||
bool msg_fmt_encode_sensor_data(const sensor_data_t* sensor_data,
|
||||
uint8_t* buffer, size_t buffer_size,
|
||||
size_t* encoded_len);
|
||||
|
||||
/**
|
||||
* @brief Encode diagnostic event to CBOR
|
||||
* @param diag_event Diagnostic event structure
|
||||
* @param buffer Output buffer
|
||||
* @param buffer_size Buffer size
|
||||
* @param encoded_len Output encoded length
|
||||
* @return true on success
|
||||
*/
|
||||
bool msg_fmt_encode_diagnostic(const diagnostic_event_t* diag_event,
|
||||
uint8_t* buffer, size_t buffer_size,
|
||||
size_t* encoded_len);
|
||||
```
|
||||
|
||||
### 3.2 Decoding Interface
|
||||
|
||||
```c
|
||||
/**
|
||||
* @brief Decode CBOR message
|
||||
* @param buffer Input CBOR buffer
|
||||
* @param buffer_len Buffer length
|
||||
* @param message_type Output message type
|
||||
* @param message_data Output message data
|
||||
* @return true on success
|
||||
*/
|
||||
bool msg_fmt_decode_message(const uint8_t* buffer, size_t buffer_len,
|
||||
message_type_t* message_type, void* message_data);
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 4. CBOR Message Format
|
||||
|
||||
### 4.1 Message Structure
|
||||
|
||||
```c
|
||||
{
|
||||
"version": 1,
|
||||
"type": "sensor_data" | "diagnostic" | "status" | "command",
|
||||
"timestamp": <uint64>,
|
||||
"device_id": <string>,
|
||||
"data": <message-specific data>
|
||||
}
|
||||
```
|
||||
|
||||
### 4.2 Message Types
|
||||
|
||||
- **sensor_data:** Sensor readings
|
||||
- **diagnostic:** Diagnostic events
|
||||
- **status:** System status
|
||||
- **command:** Commands from Main Hub
|
||||
|
||||
---
|
||||
|
||||
## 5. Traceability
|
||||
|
||||
### 5.1 Software Requirements
|
||||
|
||||
- **SWR-COM-012:** CBOR encoding for MQTT payloads
|
||||
- **SWR-COM-002:** CBOR-encoded sensor data transmission
|
||||
|
||||
---
|
||||
|
||||
**Document Status:** Complete
|
||||
**Next Review:** Before implementation
|
||||
@@ -0,0 +1,223 @@
|
||||
# Network Stack Overview
|
||||
## ASF Sensor Hub (Sub-Hub) Embedded System
|
||||
|
||||
**Document ID:** COMP-NETWORK-OVERVIEW-001
|
||||
**Version:** 1.0
|
||||
**Date:** 2025-02-01
|
||||
**Platform:** ESP32-S3, ESP-IDF v5.4
|
||||
|
||||
---
|
||||
|
||||
## 1. Purpose
|
||||
|
||||
The Network Stack provides Wi-Fi, MQTT, TLS, and ESP-NOW communication services, abstracting ESP-IDF v5.4 network APIs. This stack enables Communication Manager to handle all network operations without direct ESP-IDF dependencies.
|
||||
|
||||
**Primary Goal:** Provide secure, reliable network communication for Main Hub and peer communication.
|
||||
|
||||
---
|
||||
|
||||
## 2. Network Stack Architecture
|
||||
|
||||
```
|
||||
Communication Manager
|
||||
↓
|
||||
Network Stack (This Layer)
|
||||
├─> Wi-Fi Manager
|
||||
├─> MQTT Client
|
||||
├─> TLS Manager
|
||||
└─> ESP-NOW Handler
|
||||
↓
|
||||
ESP-IDF Network APIs
|
||||
↓
|
||||
Hardware (Wi-Fi Radio)
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 3. Network Stack Components
|
||||
|
||||
| Component ID | Component Name | Purpose | ESP-IDF Service |
|
||||
|--------------|----------------|---------|-----------------|
|
||||
| C-NET-WIFI | Wi-Fi Manager | Wi-Fi connection management | `esp_wifi.h` |
|
||||
| C-NET-MQTT | MQTT Client | MQTT protocol implementation | `mqtt_client.h` |
|
||||
| C-NET-TLS | TLS Manager | TLS 1.2 encryption | `esp_tls.h` |
|
||||
| C-NET-ESPNOW | ESP-NOW Handler | ESP-NOW peer communication | `esp_now.h` |
|
||||
|
||||
---
|
||||
|
||||
## 4. Design Principles
|
||||
|
||||
### 4.1 Security First
|
||||
|
||||
- All Main Hub communication encrypted (TLS 1.2)
|
||||
- ESP-NOW communication encrypted (application layer)
|
||||
- Certificate validation mandatory
|
||||
- Secure session establishment
|
||||
|
||||
### 4.2 Reliability
|
||||
|
||||
- Automatic reconnection with exponential backoff
|
||||
- Heartbeat mechanism for connection monitoring
|
||||
- Message queuing for store-and-forward
|
||||
- Connection state management
|
||||
|
||||
### 4.3 Performance
|
||||
|
||||
- Non-blocking operations
|
||||
- Efficient message encoding (CBOR)
|
||||
- Connection pooling
|
||||
- Minimal overhead
|
||||
|
||||
---
|
||||
|
||||
## 5. Wi-Fi Manager
|
||||
|
||||
### 5.1 Responsibilities
|
||||
|
||||
- Wi-Fi station mode configuration
|
||||
- SSID and password management
|
||||
- Connection establishment
|
||||
- Connection monitoring
|
||||
- Automatic reconnection
|
||||
- Signal strength monitoring
|
||||
|
||||
### 5.2 ESP-IDF Integration
|
||||
|
||||
- Uses `esp_wifi.h` APIs
|
||||
- Station mode only (no AP mode)
|
||||
- WPA2/WPA3 security
|
||||
- 802.11n (2.4 GHz)
|
||||
|
||||
---
|
||||
|
||||
## 6. MQTT Client
|
||||
|
||||
### 6.1 Responsibilities
|
||||
|
||||
- MQTT protocol implementation
|
||||
- Topic subscription management
|
||||
- Message publishing
|
||||
- QoS level handling
|
||||
- Keepalive mechanism
|
||||
- Connection state management
|
||||
|
||||
### 6.2 MQTT Topic Structure
|
||||
|
||||
**Topic Naming Convention:**
|
||||
```
|
||||
asf/sensorhub/{device_id}/{message_type}/{subtype}
|
||||
```
|
||||
|
||||
**Message Types:**
|
||||
- `data` - Sensor data
|
||||
- `diagnostics` - Diagnostic events
|
||||
- `status` - System status
|
||||
- `command` - Commands from Main Hub
|
||||
- `ota` - OTA update messages
|
||||
|
||||
**Example Topics:**
|
||||
- `asf/sensorhub/001/data/sensors` - Sensor data
|
||||
- `asf/sensorhub/001/diagnostics/events` - Diagnostic events
|
||||
- `asf/sensorhub/001/command/request` - Command requests
|
||||
- `asf/sensorhub/001/ota/update` - OTA updates
|
||||
|
||||
### 6.3 ESP-IDF Integration
|
||||
|
||||
- Uses `mqtt_client.h` (ESP-IDF MQTT client)
|
||||
- Supports QoS 0, 1, 2
|
||||
- Automatic reconnection
|
||||
- TLS integration
|
||||
|
||||
---
|
||||
|
||||
## 7. TLS Manager
|
||||
|
||||
### 7.1 Responsibilities
|
||||
|
||||
- TLS 1.2 connection establishment
|
||||
- Certificate validation
|
||||
- Mutual authentication (mTLS)
|
||||
- Session management
|
||||
- Key management
|
||||
|
||||
### 7.2 ESP-IDF Integration
|
||||
|
||||
- Uses `esp_tls.h` APIs
|
||||
- Certificate storage in NVS
|
||||
- Private key protection
|
||||
- Certificate validation
|
||||
|
||||
---
|
||||
|
||||
## 8. ESP-NOW Handler
|
||||
|
||||
### 8.1 Responsibilities
|
||||
|
||||
- ESP-NOW peer communication
|
||||
- Peer registration
|
||||
- Message encryption (application layer)
|
||||
- Acknowledgment handling
|
||||
- Retry mechanism
|
||||
|
||||
### 8.2 ESP-IDF Integration
|
||||
|
||||
- Uses `esp_now.h` APIs
|
||||
- Broadcast and unicast modes
|
||||
- Application-layer encryption (AES-128)
|
||||
|
||||
---
|
||||
|
||||
## 9. Error Handling
|
||||
|
||||
### 9.1 Error Detection
|
||||
|
||||
- Wi-Fi connection failures
|
||||
- MQTT connection failures
|
||||
- TLS handshake failures
|
||||
- ESP-NOW transmission failures
|
||||
- Timeout errors
|
||||
|
||||
### 9.2 Error Recovery
|
||||
|
||||
- Automatic reconnection
|
||||
- Exponential backoff
|
||||
- Error reporting to Diagnostics Manager
|
||||
- Connection state tracking
|
||||
|
||||
---
|
||||
|
||||
## 10. Dependencies
|
||||
|
||||
### 10.1 OSAL Dependencies
|
||||
|
||||
- **OSAL-TASK:** Task management for network operations
|
||||
|
||||
### 10.2 Application Dependencies
|
||||
|
||||
- **Logger:** Network event logging
|
||||
- **Diagnostics Manager:** Error reporting
|
||||
- **Security Manager:** Certificate management
|
||||
- **Time Utils:** Timestamp generation
|
||||
|
||||
---
|
||||
|
||||
## 11. Traceability
|
||||
|
||||
### 11.1 System Requirements
|
||||
|
||||
- **SR-COM-001:** Bidirectional Main Hub communication
|
||||
- **SR-COM-008:** Peer Sensor Hub communication
|
||||
- **SR-SEC-009:** Encrypted communication
|
||||
- **SR-SEC-010:** Message integrity and authenticity
|
||||
|
||||
### 11.2 Software Requirements
|
||||
|
||||
- **SWR-COM-001:** MQTT over TLS communication
|
||||
- **SWR-COM-010:** Encrypted communication
|
||||
- **SWR-COM-016:** Heartbeat mechanism
|
||||
- **SWR-COM-017:** Automatic reconnection
|
||||
|
||||
---
|
||||
|
||||
**Document Status:** Complete
|
||||
**Next Review:** Before implementation
|
||||
243
1 software design/components/osal/OSAL_OVERVIEW.md
Normal file
243
1 software design/components/osal/OSAL_OVERVIEW.md
Normal file
@@ -0,0 +1,243 @@
|
||||
# OSAL (Operating System Abstraction Layer) Overview
|
||||
## ASF Sensor Hub (Sub-Hub) Embedded System
|
||||
|
||||
**Document ID:** COMP-OSAL-OVERVIEW-001
|
||||
**Version:** 1.0
|
||||
**Date:** 2025-02-01
|
||||
**Platform:** ESP32-S3, ESP-IDF v5.4
|
||||
**Standard:** ISO/IEC/IEEE 42010:2011
|
||||
|
||||
---
|
||||
|
||||
## 1. Purpose
|
||||
|
||||
The OSAL (Operating System Abstraction Layer) provides a platform-independent abstraction over ESP-IDF v5.4 services, enabling application components to access hardware and system services without direct ESP-IDF dependencies. This layer ensures portability, testability, and maintainability.
|
||||
|
||||
**Primary Goal:** Isolate application logic from ESP-IDF framework specifics while maintaining full access to required functionality.
|
||||
|
||||
---
|
||||
|
||||
## 2. Architecture Position
|
||||
|
||||
```
|
||||
Application Layer
|
||||
↓
|
||||
OSAL Wrappers (This Layer)
|
||||
↓
|
||||
ESP-IDF v5.4 Framework
|
||||
↓
|
||||
Hardware (ESP32-S3)
|
||||
```
|
||||
|
||||
**Dependency Rule:** Application components MUST access ESP-IDF services only through OSAL wrappers (CFC-ARCH-01).
|
||||
|
||||
---
|
||||
|
||||
## 3. OSAL Component Structure
|
||||
|
||||
### 3.1 Component List
|
||||
|
||||
| Component ID | Component Name | ESP-IDF Service | Purpose |
|
||||
|--------------|----------------|-----------------|---------|
|
||||
| C-OSAL-I2C | I2C Wrapper | `driver/i2c_master.h`, `driver/i2c_slave.h` | I2C bus abstraction |
|
||||
| C-OSAL-SPI | SPI Wrapper | `driver/spi_master.h`, `driver/spi_slave.h` | SPI bus abstraction |
|
||||
| C-OSAL-UART | UART Wrapper | `driver/uart.h` | UART serial communication |
|
||||
| C-OSAL-ADC | ADC Wrapper | `driver/adc.h` | Analog-to-digital conversion |
|
||||
| C-OSAL-GPIO | GPIO Wrapper | `driver/gpio.h` | General-purpose I/O |
|
||||
| C-OSAL-TIMER | Timer Wrapper | `driver/gptimer.h`, `hal/timer_hal.h` | Hardware timers |
|
||||
| C-OSAL-TASK | Task Wrapper | `freertos/FreeRTOS.h` | FreeRTOS task management |
|
||||
| C-OSAL-MUTEX | Mutex Wrapper | `freertos/FreeRTOS.h` | Mutual exclusion |
|
||||
| C-OSAL-QUEUE | Queue Wrapper | `freertos/FreeRTOS.h` | Inter-task communication |
|
||||
| C-OSAL-SEM | Semaphore Wrapper | `freertos/FreeRTOS.h` | Synchronization |
|
||||
|
||||
---
|
||||
|
||||
## 4. Design Principles
|
||||
|
||||
### 4.1 Abstraction Principles
|
||||
|
||||
1. **Platform Independence:** OSAL interfaces are platform-agnostic
|
||||
2. **Error Handling:** Consistent error code mapping from ESP-IDF to OSAL
|
||||
3. **Resource Management:** Explicit resource lifecycle (init/deinit)
|
||||
4. **Thread Safety:** All OSAL functions are thread-safe where applicable
|
||||
5. **Timeout Specification:** All blocking operations have explicit timeouts
|
||||
|
||||
### 4.2 ESP-IDF v5.4 Compliance
|
||||
|
||||
- Uses ESP-IDF v5.4 APIs exclusively
|
||||
- Respects ESP-IDF component model
|
||||
- Follows ESP-IDF coding conventions
|
||||
- Leverages ESP-IDF error handling patterns
|
||||
|
||||
---
|
||||
|
||||
## 5. Common Interface Patterns
|
||||
|
||||
### 5.1 Initialization Pattern
|
||||
|
||||
All OSAL components follow this initialization pattern:
|
||||
|
||||
```c
|
||||
// Initialization
|
||||
osal_result_t osal_component_init(osal_config_t* config);
|
||||
|
||||
// Deinitialization
|
||||
osal_result_t osal_component_deinit(void);
|
||||
|
||||
// Status check
|
||||
bool osal_component_is_initialized(void);
|
||||
```
|
||||
|
||||
### 5.2 Error Handling Pattern
|
||||
|
||||
All OSAL functions return `osal_result_t`:
|
||||
|
||||
```c
|
||||
typedef enum {
|
||||
OSAL_OK = 0,
|
||||
OSAL_ERR_INVALID_ARG,
|
||||
OSAL_ERR_NO_MEM,
|
||||
OSAL_ERR_TIMEOUT,
|
||||
OSAL_ERR_NOT_INITIALIZED,
|
||||
OSAL_ERR_HW_FAILURE,
|
||||
OSAL_ERR_BUSY
|
||||
} osal_result_t;
|
||||
```
|
||||
|
||||
### 5.3 Resource Lifecycle Pattern
|
||||
|
||||
- **Init:** Allocate resources, configure hardware
|
||||
- **Use:** Perform operations
|
||||
- **Deinit:** Release resources, reset hardware
|
||||
|
||||
---
|
||||
|
||||
## 6. Component Dependencies
|
||||
|
||||
### 6.1 OSAL Internal Dependencies
|
||||
|
||||
```
|
||||
OSAL-TASK (Base)
|
||||
├─> OSAL-MUTEX
|
||||
├─> OSAL-QUEUE
|
||||
└─> OSAL-SEM
|
||||
|
||||
OSAL-I2C ──> OSAL-GPIO
|
||||
OSAL-SPI ──> OSAL-GPIO
|
||||
OSAL-UART ──> OSAL-GPIO
|
||||
OSAL-ADC ──> OSAL-GPIO
|
||||
```
|
||||
|
||||
### 6.2 Application Dependencies
|
||||
|
||||
All application components depend on OSAL wrappers, not directly on ESP-IDF.
|
||||
|
||||
---
|
||||
|
||||
## 7. Configuration Management
|
||||
|
||||
### 7.1 Configuration Sources
|
||||
|
||||
- **Machine Constants:** System-wide configuration
|
||||
- **Runtime Configuration:** Component-specific settings
|
||||
- **Build-time Configuration:** Compile-time constants
|
||||
|
||||
### 7.2 Configuration Validation
|
||||
|
||||
All OSAL components validate configuration parameters:
|
||||
- Range checking
|
||||
- Resource availability
|
||||
- Conflict detection
|
||||
|
||||
---
|
||||
|
||||
## 8. Error Handling and Diagnostics
|
||||
|
||||
### 8.1 Error Reporting
|
||||
|
||||
OSAL components report errors through:
|
||||
- Return codes (primary)
|
||||
- Diagnostic events (secondary)
|
||||
- Logging (tertiary)
|
||||
|
||||
### 8.2 Diagnostic Integration
|
||||
|
||||
OSAL errors are reported to Diagnostics Manager with:
|
||||
- Component identifier
|
||||
- Error code
|
||||
- Context information
|
||||
- Timestamp
|
||||
|
||||
---
|
||||
|
||||
## 9. Testing Strategy
|
||||
|
||||
### 9.1 Unit Testing
|
||||
|
||||
- Mock ESP-IDF services for unit tests
|
||||
- Test error handling paths
|
||||
- Test resource management
|
||||
- Test timeout handling
|
||||
|
||||
### 9.2 Integration Testing
|
||||
|
||||
- Test with real ESP-IDF services
|
||||
- Test hardware interaction
|
||||
- Test concurrent access
|
||||
- Test resource conflicts
|
||||
|
||||
---
|
||||
|
||||
## 10. Implementation Notes
|
||||
|
||||
### 10.1 ESP-IDF v5.4 Specifics
|
||||
|
||||
- **I2C:** Uses `i2c_master_bus_handle_t` and `i2c_master_dev_handle_t`
|
||||
- **SPI:** Uses `spi_bus_handle_t` and `spi_device_handle_t`
|
||||
- **UART:** Uses `uart_port_t` and `uart_driver_install()`
|
||||
- **ADC:** Uses `adc_oneshot_unit_handle_t` for one-shot mode
|
||||
- **GPIO:** Uses `gpio_config_t` and `gpio_set_level()`
|
||||
- **Timer:** Uses `gptimer_handle_t` for general-purpose timers
|
||||
- **FreeRTOS:** Uses standard FreeRTOS APIs
|
||||
|
||||
### 10.2 Resource Constraints
|
||||
|
||||
- **I2C Buses:** Maximum 2 buses (I2C_NUM_0, I2C_NUM_1)
|
||||
- **SPI Buses:** Maximum 3 buses (SPI1_HOST, SPI2_HOST, SPI3_HOST)
|
||||
- **UART Ports:** Maximum 3 ports (UART_NUM_0, UART_NUM_1, UART_NUM_2)
|
||||
- **ADC Units:** ADC1 and ADC2 (ADC2 not available with Wi-Fi)
|
||||
- **GPIO Pins:** Limited by ESP32-S3 pinout
|
||||
- **Tasks:** Limited by FreeRTOS heap
|
||||
|
||||
---
|
||||
|
||||
## 11. Traceability
|
||||
|
||||
### 11.1 System Requirements
|
||||
|
||||
- **SR-HW-005:** System shall abstract all hardware interfaces through driver layers
|
||||
- **SR-HW-006:** System shall enforce GPIO discipline
|
||||
|
||||
### 11.2 Software Requirements
|
||||
|
||||
- **SWR-DESIGN-003:** Software shall access hardware only through driver and OSAL layers
|
||||
- **SWR-IF-002:** Software shall provide sensor interfaces supporting I2C, SPI, UART, and analog protocols
|
||||
|
||||
### 11.3 Cross-Feature Constraints
|
||||
|
||||
- **CFC-ARCH-01:** Application logic shall not access hardware directly
|
||||
|
||||
---
|
||||
|
||||
## 12. Related Documents
|
||||
|
||||
- Individual OSAL component specifications (C-OSAL-I2C, C-OSAL-SPI, etc.)
|
||||
- Hardware Abstraction Layer specification
|
||||
- GPIO Mapping Specification
|
||||
- ESP-IDF v5.4 Programming Guide
|
||||
|
||||
---
|
||||
|
||||
**Document Status:** Complete
|
||||
**Next Review:** Before implementation
|
||||
**Approval Required:** Software Architect
|
||||
123
1 software design/components/osal/gpio_wrapper/COMPONENT.md
Normal file
123
1 software design/components/osal/gpio_wrapper/COMPONENT.md
Normal file
@@ -0,0 +1,123 @@
|
||||
# GPIO Wrapper Component
|
||||
## OSAL Layer - ESP-IDF v5.4 Abstraction
|
||||
|
||||
**Component ID:** C-OSAL-GPIO
|
||||
**Version:** 1.0
|
||||
**Date:** 2025-02-01
|
||||
**Location:** `osal/gpio_wrapper/`
|
||||
**ESP-IDF Service:** `driver/gpio.h`
|
||||
|
||||
---
|
||||
|
||||
## 1. Component Overview
|
||||
|
||||
The GPIO Wrapper provides a platform-independent interface for GPIO operations, abstracting ESP-IDF v5.4 GPIO driver. This component enforces GPIO discipline and provides centralized GPIO management.
|
||||
|
||||
**Primary Purpose:** Abstract GPIO operations with discipline enforcement.
|
||||
|
||||
---
|
||||
|
||||
## 2. Responsibilities
|
||||
|
||||
### 2.1 In-Scope
|
||||
|
||||
- GPIO pin configuration
|
||||
- GPIO input/output operations
|
||||
- GPIO interrupt handling
|
||||
- GPIO resource conflict detection
|
||||
- GPIO mapping validation
|
||||
- Strapping pin protection
|
||||
|
||||
### 2.2 Out-of-Scope
|
||||
|
||||
- GPIO pin assignment (handled by GPIO mapping specification)
|
||||
- Hardware pull-up/pull-down (handled by hardware design)
|
||||
|
||||
---
|
||||
|
||||
## 3. Provided Interfaces
|
||||
|
||||
### 3.1 Pin Configuration Interface
|
||||
|
||||
```c
|
||||
/**
|
||||
* @brief Configure GPIO pin
|
||||
* @param pin GPIO pin number
|
||||
* @param config Pin configuration (direction, pull, interrupt)
|
||||
* @return OSAL_OK on success
|
||||
*/
|
||||
osal_result_t osal_gpio_config(gpio_num_t pin, const osal_gpio_config_t* config);
|
||||
|
||||
/**
|
||||
* @brief Validate GPIO pin usage (check conflicts, strapping pins)
|
||||
* @param pin GPIO pin number
|
||||
* @param purpose Pin purpose description
|
||||
* @return OSAL_OK if valid, error if conflict
|
||||
*/
|
||||
osal_result_t osal_gpio_validate(gpio_num_t pin, const char* purpose);
|
||||
```
|
||||
|
||||
### 3.2 Pin Operations Interface
|
||||
|
||||
```c
|
||||
/**
|
||||
* @brief Set GPIO pin level
|
||||
* @param pin GPIO pin number
|
||||
* @param level High (1) or Low (0)
|
||||
* @return OSAL_OK on success
|
||||
*/
|
||||
osal_result_t osal_gpio_set_level(gpio_num_t pin, uint32_t level);
|
||||
|
||||
/**
|
||||
* @brief Get GPIO pin level
|
||||
* @param pin GPIO pin number
|
||||
* @param level Output level
|
||||
* @return OSAL_OK on success
|
||||
*/
|
||||
osal_result_t osal_gpio_get_level(gpio_num_t pin, uint32_t* level);
|
||||
```
|
||||
|
||||
### 3.3 Interrupt Interface
|
||||
|
||||
```c
|
||||
/**
|
||||
* @brief Install GPIO interrupt service
|
||||
* @param pin GPIO pin number
|
||||
* @param intr_type Interrupt type (edge, level)
|
||||
* @param isr_handler ISR handler function
|
||||
* @param args ISR handler arguments
|
||||
* @return OSAL_OK on success
|
||||
*/
|
||||
osal_result_t osal_gpio_install_isr(gpio_num_t pin, gpio_int_type_t intr_type,
|
||||
void (*isr_handler)(void*), void* args);
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 4. GPIO Discipline Enforcement
|
||||
|
||||
### 4.1 Strapping Pin Protection
|
||||
|
||||
- GPIO 0, 3, 45, 46 are protected
|
||||
- Attempts to use strapping pins are rejected
|
||||
- Diagnostic event generated on violation
|
||||
|
||||
### 4.2 Conflict Detection
|
||||
|
||||
- Tracks GPIO pin usage
|
||||
- Detects multiple registrations
|
||||
- Reports conflicts to Diagnostics Manager
|
||||
|
||||
---
|
||||
|
||||
## 5. Traceability
|
||||
|
||||
- **SR-HW-006:** GPIO discipline enforcement
|
||||
- **SR-SYS-014:** Avoid strapping pins
|
||||
- **SR-SYS-015:** I2C pull-up requirements
|
||||
- **SR-SYS-016:** ADC1/ADC2 separation
|
||||
|
||||
---
|
||||
|
||||
**Document Status:** Complete
|
||||
**Next Review:** Before implementation
|
||||
395
1 software design/components/osal/i2c_wrapper/COMPONENT.md
Normal file
395
1 software design/components/osal/i2c_wrapper/COMPONENT.md
Normal file
@@ -0,0 +1,395 @@
|
||||
# I2C Wrapper Component
|
||||
## OSAL Layer - ESP-IDF v5.4 Abstraction
|
||||
|
||||
**Component ID:** C-OSAL-I2C
|
||||
**Version:** 1.0
|
||||
**Date:** 2025-02-01
|
||||
**Location:** `osal/i2c_wrapper/`
|
||||
**ESP-IDF Service:** `driver/i2c_master.h`, `driver/i2c_slave.h`
|
||||
|
||||
---
|
||||
|
||||
## 1. Component Overview
|
||||
|
||||
The I2C Wrapper provides a platform-independent interface for I2C bus operations, abstracting ESP-IDF v5.4 I2C master and slave drivers. This component enables sensor drivers and other components to access I2C devices without direct ESP-IDF dependencies.
|
||||
|
||||
**Primary Purpose:** Abstract I2C bus operations for application components.
|
||||
|
||||
---
|
||||
|
||||
## 2. Responsibilities
|
||||
|
||||
### 2.1 In-Scope
|
||||
|
||||
- I2C bus initialization and configuration
|
||||
- I2C device registration and management
|
||||
- I2C read/write operations (master mode)
|
||||
- I2C bus error handling and recovery
|
||||
- I2C bus resource management
|
||||
- I2C timeout handling
|
||||
- I2C bus status monitoring
|
||||
|
||||
### 2.2 Out-of-Scope
|
||||
|
||||
- I2C slave mode (not required for sensor hub)
|
||||
- I2C protocol-level error recovery (handled by ESP-IDF)
|
||||
- I2C bus arbitration (handled by ESP-IDF)
|
||||
- Device-specific I2C protocols (handled by sensor drivers)
|
||||
|
||||
---
|
||||
|
||||
## 3. Provided Interfaces
|
||||
|
||||
### 3.1 Bus Management Interface
|
||||
|
||||
```c
|
||||
/**
|
||||
* @brief Initialize I2C bus
|
||||
* @param bus_num I2C bus number (0 or 1)
|
||||
* @param config Bus configuration (clock speed, SDA/SCL pins)
|
||||
* @return OSAL_OK on success, error code on failure
|
||||
*/
|
||||
osal_result_t osal_i2c_bus_init(i2c_bus_num_t bus_num, const osal_i2c_bus_config_t* config);
|
||||
|
||||
/**
|
||||
* @brief Deinitialize I2C bus
|
||||
* @param bus_num I2C bus number
|
||||
* @return OSAL_OK on success
|
||||
*/
|
||||
osal_result_t osal_i2c_bus_deinit(i2c_bus_num_t bus_num);
|
||||
|
||||
/**
|
||||
* @brief Check if I2C bus is initialized
|
||||
* @param bus_num I2C bus number
|
||||
* @return true if initialized, false otherwise
|
||||
*/
|
||||
bool osal_i2c_bus_is_initialized(i2c_bus_num_t bus_num);
|
||||
```
|
||||
|
||||
### 3.2 Device Management Interface
|
||||
|
||||
```c
|
||||
/**
|
||||
* @brief Register I2C device on bus
|
||||
* @param bus_num I2C bus number
|
||||
* @param device_addr I2C device address (7-bit)
|
||||
* @param device_handle Output device handle
|
||||
* @return OSAL_OK on success
|
||||
*/
|
||||
osal_result_t osal_i2c_device_register(i2c_bus_num_t bus_num, uint8_t device_addr,
|
||||
osal_i2c_device_handle_t* device_handle);
|
||||
|
||||
/**
|
||||
* @brief Unregister I2C device
|
||||
* @param device_handle Device handle
|
||||
* @return OSAL_OK on success
|
||||
*/
|
||||
osal_result_t osal_i2c_device_unregister(osal_i2c_device_handle_t device_handle);
|
||||
```
|
||||
|
||||
### 3.3 Data Transfer Interface
|
||||
|
||||
```c
|
||||
/**
|
||||
* @brief Write data to I2C device
|
||||
* @param device_handle Device handle
|
||||
* @param reg_addr Register address (optional, 0 if not used)
|
||||
* @param data Data buffer
|
||||
* @param data_len Data length in bytes
|
||||
* @param timeout_ms Timeout in milliseconds
|
||||
* @return OSAL_OK on success
|
||||
*/
|
||||
osal_result_t osal_i2c_write(osal_i2c_device_handle_t device_handle, uint8_t reg_addr,
|
||||
const uint8_t* data, size_t data_len, uint32_t timeout_ms);
|
||||
|
||||
/**
|
||||
* @brief Read data from I2C device
|
||||
* @param device_handle Device handle
|
||||
* @param reg_addr Register address (optional, 0 if not used)
|
||||
* @param data Output data buffer
|
||||
* @param data_len Data length in bytes
|
||||
* @param timeout_ms Timeout in milliseconds
|
||||
* @return OSAL_OK on success
|
||||
*/
|
||||
osal_result_t osal_i2c_read(osal_i2c_device_handle_t device_handle, uint8_t reg_addr,
|
||||
uint8_t* data, size_t data_len, uint32_t timeout_ms);
|
||||
|
||||
/**
|
||||
* @brief Write then read (combined transaction)
|
||||
* @param device_handle Device handle
|
||||
* @param write_data Write data buffer
|
||||
* @param write_len Write data length
|
||||
* @param read_data Read data buffer
|
||||
* @param read_len Read data length
|
||||
* @param timeout_ms Timeout in milliseconds
|
||||
* @return OSAL_OK on success
|
||||
*/
|
||||
osal_result_t osal_i2c_write_read(osal_i2c_device_handle_t device_handle,
|
||||
const uint8_t* write_data, size_t write_len,
|
||||
uint8_t* read_data, size_t read_len,
|
||||
uint32_t timeout_ms);
|
||||
```
|
||||
|
||||
### 3.4 Status and Diagnostics Interface
|
||||
|
||||
```c
|
||||
/**
|
||||
* @brief Get I2C bus status
|
||||
* @param bus_num I2C bus number
|
||||
* @param status Output status structure
|
||||
* @return OSAL_OK on success
|
||||
*/
|
||||
osal_result_t osal_i2c_get_bus_status(i2c_bus_num_t bus_num, osal_i2c_bus_status_t* status);
|
||||
|
||||
/**
|
||||
* @brief Reset I2C bus (recovery from error)
|
||||
* @param bus_num I2C bus number
|
||||
* @return OSAL_OK on success
|
||||
*/
|
||||
osal_result_t osal_i2c_bus_reset(i2c_bus_num_t bus_num);
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 4. Data Structures
|
||||
|
||||
### 4.1 Configuration Structures
|
||||
|
||||
```c
|
||||
typedef struct {
|
||||
uint32_t clock_speed_hz; // I2C clock speed (100kHz, 400kHz, 1MHz)
|
||||
gpio_num_t sda_pin; // SDA GPIO pin
|
||||
gpio_num_t scl_pin; // SCL GPIO pin
|
||||
bool sda_pullup_enable; // Enable SDA pull-up
|
||||
bool scl_pullup_enable; // Enable SCL pull-up
|
||||
uint32_t timeout_ms; // Default timeout
|
||||
} osal_i2c_bus_config_t;
|
||||
|
||||
typedef struct {
|
||||
bool is_initialized;
|
||||
uint32_t active_devices;
|
||||
uint32_t error_count;
|
||||
uint32_t transaction_count;
|
||||
} osal_i2c_bus_status_t;
|
||||
```
|
||||
|
||||
### 4.2 Handle Types
|
||||
|
||||
```c
|
||||
typedef void* osal_i2c_device_handle_t;
|
||||
typedef enum {
|
||||
I2C_BUS_0 = 0,
|
||||
I2C_BUS_1 = 1
|
||||
} i2c_bus_num_t;
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 5. Internal State Machine
|
||||
|
||||
```
|
||||
[UNINITIALIZED]
|
||||
↓ osal_i2c_bus_init()
|
||||
[INITIALIZED]
|
||||
↓ osal_i2c_device_register()
|
||||
[DEVICE_REGISTERED]
|
||||
↓ osal_i2c_write/read()
|
||||
[OPERATIONAL]
|
||||
↓ Error detected
|
||||
[ERROR_STATE]
|
||||
↓ osal_i2c_bus_reset()
|
||||
[INITIALIZED]
|
||||
↓ osal_i2c_bus_deinit()
|
||||
[UNINITIALIZED]
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 6. ESP-IDF v5.4 Integration
|
||||
|
||||
### 6.1 ESP-IDF APIs Used
|
||||
|
||||
- `i2c_master_bus_config_t` - Bus configuration
|
||||
- `i2c_master_bus_handle_t` - Bus handle
|
||||
- `i2c_master_dev_handle_t` - Device handle
|
||||
- `i2c_master_bus_add_device()` - Device registration
|
||||
- `i2c_master_transmit_receive()` - Data transfer
|
||||
|
||||
### 6.2 ESP-IDF Error Mapping
|
||||
|
||||
| ESP-IDF Error | OSAL Error |
|
||||
|---------------|------------|
|
||||
| ESP_OK | OSAL_OK |
|
||||
| ESP_ERR_INVALID_ARG | OSAL_ERR_INVALID_ARG |
|
||||
| ESP_ERR_NO_MEM | OSAL_ERR_NO_MEM |
|
||||
| ESP_ERR_TIMEOUT | OSAL_ERR_TIMEOUT |
|
||||
| ESP_ERR_NOT_FOUND | OSAL_ERR_HW_FAILURE |
|
||||
|
||||
---
|
||||
|
||||
## 7. Error Handling
|
||||
|
||||
### 7.1 Error Detection
|
||||
|
||||
- I2C bus errors (NACK, arbitration loss)
|
||||
- Timeout errors
|
||||
- Invalid parameter errors
|
||||
- Resource exhaustion errors
|
||||
|
||||
### 7.2 Error Recovery
|
||||
|
||||
- Automatic bus reset on error
|
||||
- Retry mechanism (configurable)
|
||||
- Error reporting to Diagnostics Manager
|
||||
- Bus status monitoring
|
||||
|
||||
### 7.3 Diagnostic Events
|
||||
|
||||
- `DIAG-HW-I2C-0001`: I2C bus initialization failure
|
||||
- `DIAG-HW-I2C-0002`: I2C device registration failure
|
||||
- `DIAG-HW-I2C-0003`: I2C transaction timeout
|
||||
- `DIAG-HW-I2C-0004`: I2C bus error (NACK)
|
||||
- `DIAG-HW-I2C-0005`: I2C bus reset performed
|
||||
|
||||
---
|
||||
|
||||
## 8. Configuration Parameters
|
||||
|
||||
### 8.1 Build-time Configuration
|
||||
|
||||
- Maximum number of I2C buses: 2
|
||||
- Maximum devices per bus: 8
|
||||
- Default timeout: 1000ms
|
||||
- Retry count: 3
|
||||
|
||||
### 8.2 Runtime Configuration
|
||||
|
||||
- Clock speed (from Machine Constants)
|
||||
- GPIO pin assignments (from GPIO mapping)
|
||||
- Pull-up enable (from hardware design)
|
||||
|
||||
---
|
||||
|
||||
## 9. Dependencies
|
||||
|
||||
### 9.1 OSAL Dependencies
|
||||
|
||||
- **OSAL-GPIO:** GPIO pin configuration
|
||||
|
||||
### 9.2 ESP-IDF Dependencies
|
||||
|
||||
- `driver/i2c_master.h`
|
||||
- `driver/gpio.h`
|
||||
- `esp_err.h`
|
||||
|
||||
### 9.3 Application Dependencies
|
||||
|
||||
- **Logger:** Error logging
|
||||
- **Diagnostics Manager:** Error reporting
|
||||
- **Time Utils:** Timeout handling
|
||||
|
||||
---
|
||||
|
||||
## 10. Thread Safety
|
||||
|
||||
### 10.1 Concurrent Access
|
||||
|
||||
- Bus operations are thread-safe
|
||||
- Device handles are thread-safe
|
||||
- Multiple devices on same bus can be accessed concurrently
|
||||
- Bus initialization/deinitialization requires synchronization
|
||||
|
||||
### 10.2 FreeRTOS Integration
|
||||
|
||||
- Uses FreeRTOS mutex for bus protection
|
||||
- Non-blocking operations preferred
|
||||
- Timeout handling uses FreeRTOS ticks
|
||||
|
||||
---
|
||||
|
||||
## 11. Performance Considerations
|
||||
|
||||
### 11.1 Timing Constraints
|
||||
|
||||
- I2C write operation: < 10ms (typical)
|
||||
- I2C read operation: < 10ms (typical)
|
||||
- Bus initialization: < 100ms
|
||||
- Device registration: < 10ms
|
||||
|
||||
### 11.2 Resource Usage
|
||||
|
||||
- Memory: ~2KB per bus (ESP-IDF overhead)
|
||||
- CPU: Minimal (hardware-assisted)
|
||||
- Interrupts: I2C interrupt handler
|
||||
|
||||
---
|
||||
|
||||
## 12. Testing Strategy
|
||||
|
||||
### 12.1 Unit Testing
|
||||
|
||||
- Mock ESP-IDF I2C functions
|
||||
- Test error handling paths
|
||||
- Test timeout handling
|
||||
- Test resource management
|
||||
|
||||
### 12.2 Integration Testing
|
||||
|
||||
- Test with real I2C devices
|
||||
- Test concurrent access
|
||||
- Test error recovery
|
||||
- Test bus reset functionality
|
||||
|
||||
### 12.3 Hardware Testing
|
||||
|
||||
- Test with actual sensors
|
||||
- Test I2C bus conflicts
|
||||
- Test pull-up resistor behavior
|
||||
- Test clock speed variations
|
||||
|
||||
---
|
||||
|
||||
## 13. Traceability
|
||||
|
||||
### 13.1 System Requirements
|
||||
|
||||
- **SR-HW-005:** System shall abstract all hardware interfaces through driver layers
|
||||
- **SR-SYS-015:** System shall ensure all shared I2C buses have appropriate physical pull-up resistors
|
||||
|
||||
### 13.2 Software Requirements
|
||||
|
||||
- **SWR-IF-002:** Software shall provide sensor interfaces supporting I2C protocol
|
||||
- **SWR-DESIGN-003:** Software shall access hardware only through driver and OSAL layers
|
||||
|
||||
### 13.3 Cross-Feature Constraints
|
||||
|
||||
- **CFC-ARCH-01:** Application logic shall not access hardware directly
|
||||
|
||||
---
|
||||
|
||||
## 14. Implementation Notes
|
||||
|
||||
### 14.1 ESP-IDF v5.4 Specifics
|
||||
|
||||
- Uses new I2C master driver API (not legacy)
|
||||
- Supports I2C_NUM_0 and I2C_NUM_1
|
||||
- Clock speed: 100kHz, 400kHz, 1MHz supported
|
||||
- Requires proper GPIO configuration
|
||||
|
||||
### 14.2 GPIO Requirements
|
||||
|
||||
- SDA and SCL pins must be configured via GPIO mapping
|
||||
- Physical pull-up resistors required (2.2kΩ - 4.7kΩ)
|
||||
- Software pull-ups can be enabled as backup
|
||||
|
||||
### 14.3 Known Limitations
|
||||
|
||||
- Maximum 8 devices per bus (ESP-IDF limitation)
|
||||
- Clock stretching not fully supported in all modes
|
||||
- Bus sharing requires careful synchronization
|
||||
|
||||
---
|
||||
|
||||
**Document Status:** Complete
|
||||
**Next Review:** Before implementation
|
||||
**Approval Required:** Software Architect
|
||||
120
1 software design/components/osal/spi_wrapper/COMPONENT.md
Normal file
120
1 software design/components/osal/spi_wrapper/COMPONENT.md
Normal file
@@ -0,0 +1,120 @@
|
||||
# SPI Wrapper Component
|
||||
## OSAL Layer - ESP-IDF v5.4 Abstraction
|
||||
|
||||
**Component ID:** C-OSAL-SPI
|
||||
**Version:** 1.0
|
||||
**Date:** 2025-02-01
|
||||
**Location:** `osal/spi_wrapper/`
|
||||
**ESP-IDF Service:** `driver/spi_master.h`, `driver/spi_slave.h`
|
||||
|
||||
---
|
||||
|
||||
## 1. Component Overview
|
||||
|
||||
The SPI Wrapper provides a platform-independent interface for SPI bus operations, abstracting ESP-IDF v5.4 SPI master and slave drivers. This component enables storage drivers and other components to access SPI devices (SD cards, flash chips) without direct ESP-IDF dependencies.
|
||||
|
||||
**Primary Purpose:** Abstract SPI bus operations for application components.
|
||||
|
||||
---
|
||||
|
||||
## 2. Responsibilities
|
||||
|
||||
### 2.1 In-Scope
|
||||
|
||||
- SPI bus initialization and configuration
|
||||
- SPI device registration and management
|
||||
- SPI transaction operations (master mode)
|
||||
- SPI bus error handling and recovery
|
||||
- SPI bus resource management
|
||||
- SPI timeout handling
|
||||
- SPI bus status monitoring
|
||||
|
||||
### 2.2 Out-of-Scope
|
||||
|
||||
- SPI slave mode (not required for sensor hub)
|
||||
- SPI protocol-level error recovery (handled by ESP-IDF)
|
||||
- Device-specific SPI protocols (handled by storage drivers)
|
||||
|
||||
---
|
||||
|
||||
## 3. Provided Interfaces
|
||||
|
||||
### 3.1 Bus Management Interface
|
||||
|
||||
```c
|
||||
/**
|
||||
* @brief Initialize SPI bus
|
||||
* @param bus_num SPI bus number (SPI1_HOST, SPI2_HOST, SPI3_HOST)
|
||||
* @param config Bus configuration (clock speed, pins, mode)
|
||||
* @return OSAL_OK on success
|
||||
*/
|
||||
osal_result_t osal_spi_bus_init(spi_bus_num_t bus_num, const osal_spi_bus_config_t* config);
|
||||
|
||||
/**
|
||||
* @brief Deinitialize SPI bus
|
||||
* @param bus_num SPI bus number
|
||||
* @return OSAL_OK on success
|
||||
*/
|
||||
osal_result_t osal_spi_bus_deinit(spi_bus_num_t bus_num);
|
||||
```
|
||||
|
||||
### 3.2 Device Management Interface
|
||||
|
||||
```c
|
||||
/**
|
||||
* @brief Register SPI device on bus
|
||||
* @param bus_num SPI bus number
|
||||
* @param device_config Device configuration (CS pin, mode, clock speed)
|
||||
* @param device_handle Output device handle
|
||||
* @return OSAL_OK on success
|
||||
*/
|
||||
osal_result_t osal_spi_device_register(spi_bus_num_t bus_num,
|
||||
const osal_spi_device_config_t* device_config,
|
||||
osal_spi_device_handle_t* device_handle);
|
||||
|
||||
/**
|
||||
* @brief Unregister SPI device
|
||||
* @param device_handle Device handle
|
||||
* @return OSAL_OK on success
|
||||
*/
|
||||
osal_result_t osal_spi_device_unregister(osal_spi_device_handle_t device_handle);
|
||||
```
|
||||
|
||||
### 3.3 Transaction Interface
|
||||
|
||||
```c
|
||||
/**
|
||||
* @brief Perform SPI transaction
|
||||
* @param device_handle Device handle
|
||||
* @param tx_data Transmit data buffer (NULL if read-only)
|
||||
* @param rx_data Receive data buffer (NULL if write-only)
|
||||
* @param length Transaction length in bytes
|
||||
* @param timeout_ms Timeout in milliseconds
|
||||
* @return OSAL_OK on success
|
||||
*/
|
||||
osal_result_t osal_spi_transaction(osal_spi_device_handle_t device_handle,
|
||||
const uint8_t* tx_data, uint8_t* rx_data,
|
||||
size_t length, uint32_t timeout_ms);
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 4. ESP-IDF v5.4 Integration
|
||||
|
||||
- Uses `spi_bus_handle_t` and `spi_device_handle_t`
|
||||
- Supports SPI1_HOST, SPI2_HOST, SPI3_HOST
|
||||
- Clock speed: Up to 80MHz (ESP32-S3 limit)
|
||||
- SPI modes: 0, 1, 2, 3 supported
|
||||
|
||||
---
|
||||
|
||||
## 5. Traceability
|
||||
|
||||
- **SR-HW-005:** Hardware interface abstraction
|
||||
- **SWR-IF-002:** SPI protocol support
|
||||
- **SWR-DESIGN-003:** OSAL layer access
|
||||
|
||||
---
|
||||
|
||||
**Document Status:** Complete
|
||||
**Next Review:** Before implementation
|
||||
105
1 software design/components/osal/task_wrapper/COMPONENT.md
Normal file
105
1 software design/components/osal/task_wrapper/COMPONENT.md
Normal file
@@ -0,0 +1,105 @@
|
||||
# Task Wrapper Component
|
||||
## OSAL Layer - FreeRTOS Abstraction
|
||||
|
||||
**Component ID:** C-OSAL-TASK
|
||||
**Version:** 1.0
|
||||
**Date:** 2025-02-01
|
||||
**Location:** `osal/task_wrapper/`
|
||||
**ESP-IDF Service:** `freertos/FreeRTOS.h`, `freertos/task.h`
|
||||
|
||||
---
|
||||
|
||||
## 1. Component Overview
|
||||
|
||||
The Task Wrapper provides a platform-independent interface for FreeRTOS task management, abstracting ESP-IDF v5.4 FreeRTOS APIs. This component enables application components to create and manage tasks without direct FreeRTOS dependencies.
|
||||
|
||||
**Primary Purpose:** Abstract FreeRTOS task operations for application components.
|
||||
|
||||
---
|
||||
|
||||
## 2. Responsibilities
|
||||
|
||||
### 2.1 In-Scope
|
||||
|
||||
- Task creation and deletion
|
||||
- Task priority management
|
||||
- Task state queries
|
||||
- Task synchronization
|
||||
- Task watchdog integration
|
||||
- Task resource monitoring
|
||||
|
||||
### 2.2 Out-of-Scope
|
||||
|
||||
- Task scheduling (handled by FreeRTOS)
|
||||
- Task preemption (handled by FreeRTOS)
|
||||
- Interrupt handling (handled by ESP-IDF)
|
||||
|
||||
---
|
||||
|
||||
## 3. Provided Interfaces
|
||||
|
||||
### 3.1 Task Management Interface
|
||||
|
||||
```c
|
||||
/**
|
||||
* @brief Create FreeRTOS task
|
||||
* @param task_name Task name (for debugging)
|
||||
* @param task_func Task function
|
||||
* @param task_args Task function arguments
|
||||
* @param stack_size Stack size in bytes
|
||||
* @param priority Task priority
|
||||
* @param core_id CPU core ID (-1 for any core)
|
||||
* @param task_handle Output task handle
|
||||
* @return OSAL_OK on success
|
||||
*/
|
||||
osal_result_t osal_task_create(const char* task_name, TaskFunction_t task_func, void* task_args,
|
||||
uint32_t stack_size, uint32_t priority, int core_id,
|
||||
osal_task_handle_t* task_handle);
|
||||
|
||||
/**
|
||||
* @brief Delete task
|
||||
* @param task_handle Task handle
|
||||
* @return OSAL_OK on success
|
||||
*/
|
||||
osal_result_t osal_task_delete(osal_task_handle_t task_handle);
|
||||
|
||||
/**
|
||||
* @brief Delay task execution
|
||||
* @param delay_ms Delay in milliseconds
|
||||
*/
|
||||
void osal_task_delay(uint32_t delay_ms);
|
||||
```
|
||||
|
||||
### 3.2 Task Status Interface
|
||||
|
||||
```c
|
||||
/**
|
||||
* @brief Get task status
|
||||
* @param task_handle Task handle
|
||||
* @param status Output status structure
|
||||
* @return OSAL_OK on success
|
||||
*/
|
||||
osal_result_t osal_task_get_status(osal_task_handle_t task_handle, osal_task_status_t* status);
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 4. FreeRTOS Integration
|
||||
|
||||
- Uses `xTaskCreate()` for task creation
|
||||
- Supports dual-core (Core 0, Core 1, or any)
|
||||
- Priority range: 0-25 (configurable)
|
||||
- Stack monitoring and overflow detection
|
||||
|
||||
---
|
||||
|
||||
## 5. Traceability
|
||||
|
||||
- **SWR-DESIGN-002:** Non-blocking operations
|
||||
- **SWR-DIAG-012:** Task watchdog integration
|
||||
- **CFC-TIME-01:** Non-blocking operation support
|
||||
|
||||
---
|
||||
|
||||
**Document Status:** Complete
|
||||
**Next Review:** Before implementation
|
||||
@@ -0,0 +1,198 @@
|
||||
# Sensor Drivers Overview
|
||||
## ASF Sensor Hub (Sub-Hub) Embedded System
|
||||
|
||||
**Document ID:** COMP-SENSOR-DRIVERS-OVERVIEW-001
|
||||
**Version:** 1.0
|
||||
**Date:** 2025-02-01
|
||||
**Platform:** ESP32-S3, ESP-IDF v5.4
|
||||
|
||||
---
|
||||
|
||||
## 1. Purpose
|
||||
|
||||
The Sensor Drivers provide hardware-specific implementations for each sensor type, implementing the Sensor Abstraction Layer (SAL) interface. Each driver abstracts sensor-specific protocols and provides a uniform interface to the Sensor Manager.
|
||||
|
||||
**Primary Goal:** Enable Sensor Manager to operate sensors without hardware-specific knowledge.
|
||||
|
||||
---
|
||||
|
||||
## 2. Sensor Driver Architecture
|
||||
|
||||
```
|
||||
Sensor Manager
|
||||
↓
|
||||
Sensor Abstraction Layer (SAL) Interface
|
||||
↓
|
||||
Sensor Drivers (This Layer)
|
||||
↓
|
||||
OSAL Wrappers (I2C, SPI, UART, ADC)
|
||||
↓
|
||||
Hardware (Sensors)
|
||||
```
|
||||
|
||||
**Dependency Rule:** Sensor drivers MUST use OSAL wrappers, not direct ESP-IDF access.
|
||||
|
||||
---
|
||||
|
||||
## 3. Sensor Driver List
|
||||
|
||||
| Component ID | Sensor Type | Interface | Driver Name |
|
||||
|--------------|-------------|-----------|-------------|
|
||||
| C-SENSOR-DRV-TEMP | Temperature | I2C | SHT40 Temperature Driver |
|
||||
| C-SENSOR-DRV-HUM | Humidity | I2C | SHT40 Humidity Driver |
|
||||
| C-SENSOR-DRV-CO2 | CO₂ | I2C | SCD40 CO2 Driver |
|
||||
| C-SENSOR-DRV-NH3 | NH₃ | Analog/ADC | NH3 Analog Driver |
|
||||
| C-SENSOR-DRV-VOC | VOC | I2C | SGP40 VOC Driver |
|
||||
| C-SENSOR-DRV-PM | Particulate Matter | UART | SPS30 PM Driver |
|
||||
| C-SENSOR-DRV-LIGHT | Light Intensity | I2C | TSL2591 Light Driver |
|
||||
|
||||
---
|
||||
|
||||
## 4. Common SAL Interface
|
||||
|
||||
All sensor drivers implement the following SAL interface:
|
||||
|
||||
```c
|
||||
/**
|
||||
* @brief Initialize sensor
|
||||
* @param config Sensor configuration
|
||||
* @return true on success, false on failure
|
||||
*/
|
||||
bool sensor_driver_init(const sensor_config_t* config);
|
||||
|
||||
/**
|
||||
* @brief Read sensor value
|
||||
* @param value Output sensor value
|
||||
* @param timestamp Output timestamp
|
||||
* @return true on success, false on failure
|
||||
*/
|
||||
bool sensor_driver_read(float* value, uint64_t* timestamp);
|
||||
|
||||
/**
|
||||
* @brief Check sensor health
|
||||
* @return true if healthy, false if failed
|
||||
*/
|
||||
bool sensor_driver_is_healthy(void);
|
||||
|
||||
/**
|
||||
* @brief Get sensor metadata
|
||||
* @param metadata Output metadata structure
|
||||
* @return true on success
|
||||
*/
|
||||
bool sensor_driver_get_metadata(sensor_metadata_t* metadata);
|
||||
|
||||
/**
|
||||
* @brief Reset sensor
|
||||
* @return true on success
|
||||
*/
|
||||
bool sensor_driver_reset(void);
|
||||
|
||||
/**
|
||||
* @brief Deinitialize sensor
|
||||
*/
|
||||
void sensor_driver_deinit(void);
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 5. Sensor State Management
|
||||
|
||||
All sensor drivers track sensor state:
|
||||
|
||||
- **INIT:** Initialization state
|
||||
- **WARMUP:** Sensor warming up (not yet stable)
|
||||
- **STABLE:** Sensor operational and stable
|
||||
- **DEGRADED:** Sensor operational but degraded
|
||||
- **FAILED:** Sensor failed, not operational
|
||||
|
||||
---
|
||||
|
||||
## 6. Error Handling
|
||||
|
||||
### 6.1 Error Detection
|
||||
|
||||
- Communication errors (I2C/SPI/UART failures)
|
||||
- Sensor timeout errors
|
||||
- Out-of-range values
|
||||
- Sensor disconnection detection
|
||||
|
||||
### 6.2 Error Reporting
|
||||
|
||||
- Return error codes from driver functions
|
||||
- Report to Diagnostics Manager
|
||||
- Update sensor state to FAILED or DEGRADED
|
||||
|
||||
---
|
||||
|
||||
## 7. Configuration
|
||||
|
||||
### 7.1 Configuration Sources
|
||||
|
||||
- **Machine Constants:** Sensor-specific calibration and configuration
|
||||
- **Hardware Detection:** Sensor presence detection
|
||||
- **Runtime Configuration:** Dynamic parameter adjustment
|
||||
|
||||
### 7.2 Configuration Parameters
|
||||
|
||||
- Sensor address (I2C/SPI)
|
||||
- Calibration parameters
|
||||
- Measurement range
|
||||
- Sampling rate
|
||||
- Warmup duration
|
||||
|
||||
---
|
||||
|
||||
## 8. Dependencies
|
||||
|
||||
### 8.1 OSAL Dependencies
|
||||
|
||||
- **OSAL-I2C:** I2C sensors (Temperature, Humidity, CO2, VOC, Light)
|
||||
- **OSAL-UART:** UART sensors (PM)
|
||||
- **OSAL-ADC:** Analog sensors (NH3)
|
||||
|
||||
### 8.2 Application Dependencies
|
||||
|
||||
- **Logger:** Error logging
|
||||
- **Diagnostics Manager:** Error reporting
|
||||
- **Time Utils:** Timestamp generation
|
||||
|
||||
---
|
||||
|
||||
## 9. Testing Strategy
|
||||
|
||||
### 9.1 Unit Testing
|
||||
|
||||
- Mock OSAL wrappers
|
||||
- Test error handling
|
||||
- Test state transitions
|
||||
- Test calibration application
|
||||
|
||||
### 9.2 Integration Testing
|
||||
|
||||
- Test with real sensors
|
||||
- Test communication protocols
|
||||
- Test error recovery
|
||||
- Test warmup behavior
|
||||
|
||||
---
|
||||
|
||||
## 10. Traceability
|
||||
|
||||
### 10.1 System Requirements
|
||||
|
||||
- **SR-DAQ-001:** Multi-sensor data acquisition
|
||||
- **SR-DAQ-002:** Sensor slot mapping
|
||||
- **SR-DAQ-003:** Sensor presence detection
|
||||
- **SR-HW-001:** Sensor Abstraction Layer
|
||||
|
||||
### 10.2 Software Requirements
|
||||
|
||||
- **SWR-DAQ-001:** Support multiple sensor types
|
||||
- **SWR-DAQ-002:** Sensor driver abstraction
|
||||
- **SWR-DAQ-003:** Sensor presence detection
|
||||
- **SWR-HW-001:** SAL implementation
|
||||
|
||||
---
|
||||
|
||||
**Document Status:** Complete
|
||||
**Next Review:** Before implementation
|
||||
@@ -0,0 +1,151 @@
|
||||
# Temperature Sensor Driver (SHT40)
|
||||
## Sensor Drivers Layer
|
||||
|
||||
**Component ID:** C-SENSOR-DRV-TEMP
|
||||
**Version:** 1.0
|
||||
**Date:** 2025-02-01
|
||||
**Location:** `sensor_drivers/temperature_sht40/`
|
||||
**Sensor:** Sensirion SHT40 (Temperature)
|
||||
|
||||
---
|
||||
|
||||
## 1. Component Overview
|
||||
|
||||
The SHT40 Temperature Driver provides hardware-specific implementation for the Sensirion SHT40 temperature sensor, implementing the Sensor Abstraction Layer (SAL) interface. This driver handles I2C communication, sensor initialization, and temperature reading.
|
||||
|
||||
**Primary Purpose:** Enable Sensor Manager to read temperature from SHT40 sensor.
|
||||
|
||||
---
|
||||
|
||||
## 2. Responsibilities
|
||||
|
||||
### 2.1 In-Scope
|
||||
|
||||
- SHT40 sensor initialization
|
||||
- Temperature reading via I2C
|
||||
- Sensor health monitoring
|
||||
- Sensor calibration application
|
||||
- Sensor state management
|
||||
- Error detection and reporting
|
||||
|
||||
### 2.2 Out-of-Scope
|
||||
|
||||
- Humidity reading (handled by separate SHT40 Humidity driver)
|
||||
- Data filtering (handled by Sensor Manager)
|
||||
- Data persistence (handled by Data Persistence)
|
||||
|
||||
---
|
||||
|
||||
## 3. SAL Interface Implementation
|
||||
|
||||
Implements standard SAL interface:
|
||||
- `sensor_driver_init()` - Initialize SHT40
|
||||
- `sensor_driver_read()` - Read temperature
|
||||
- `sensor_driver_is_healthy()` - Check sensor health
|
||||
- `sensor_driver_get_metadata()` - Get sensor capabilities
|
||||
- `sensor_driver_reset()` - Reset sensor
|
||||
- `sensor_driver_deinit()` - Deinitialize sensor
|
||||
|
||||
---
|
||||
|
||||
## 4. SHT40 Specifics
|
||||
|
||||
### 4.1 I2C Communication
|
||||
|
||||
- **I2C Address:** 0x44 (7-bit)
|
||||
- **Protocol:** I2C standard mode (100kHz) or fast mode (400kHz)
|
||||
- **Command Format:** 2-byte commands
|
||||
- **Data Format:** 2-byte temperature data + 1-byte CRC
|
||||
|
||||
### 4.2 Measurement Characteristics
|
||||
|
||||
- **Range:** -40°C to +125°C
|
||||
- **Accuracy:** ±0.2°C (typical)
|
||||
- **Resolution:** 0.01°C
|
||||
- **Response Time:** < 2 seconds
|
||||
- **Warmup Time:** 5 seconds (from power-on)
|
||||
|
||||
### 4.3 Commands
|
||||
|
||||
- `0xFD` - High precision measurement
|
||||
- `0xE0` - Soft reset
|
||||
- `0x89` - Serial number read
|
||||
|
||||
---
|
||||
|
||||
## 5. State Management
|
||||
|
||||
```
|
||||
[INIT]
|
||||
↓ sensor_driver_init()
|
||||
[WARMUP] (5 seconds)
|
||||
↓ Warmup complete
|
||||
[STABLE]
|
||||
↓ Error detected
|
||||
[DEGRADED]
|
||||
↓ Multiple errors
|
||||
[FAILED]
|
||||
↓ sensor_driver_reset()
|
||||
[INIT]
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 6. Error Handling
|
||||
|
||||
### 6.1 Error Detection
|
||||
|
||||
- I2C communication errors
|
||||
- CRC validation errors
|
||||
- Out-of-range temperature values
|
||||
- Sensor timeout errors
|
||||
|
||||
### 6.2 Error Recovery
|
||||
|
||||
- Automatic retry (3 attempts)
|
||||
- Sensor reset on persistent errors
|
||||
- State transition to DEGRADED or FAILED
|
||||
- Diagnostic event reporting
|
||||
|
||||
---
|
||||
|
||||
## 7. Dependencies
|
||||
|
||||
- **OSAL-I2C:** I2C communication
|
||||
- **Logger:** Error logging
|
||||
- **Diagnostics Manager:** Error reporting
|
||||
- **Time Utils:** Timestamp generation
|
||||
|
||||
---
|
||||
|
||||
## 8. Configuration
|
||||
|
||||
### 8.1 Machine Constants
|
||||
|
||||
- I2C bus number
|
||||
- I2C device address (0x44)
|
||||
- Calibration offset
|
||||
- Calibration scale factor
|
||||
- Measurement precision mode
|
||||
|
||||
### 8.2 Runtime Configuration
|
||||
|
||||
- Warmup duration: 5 seconds
|
||||
- Measurement interval: 1 second
|
||||
- Retry count: 3
|
||||
- Timeout: 100ms
|
||||
|
||||
---
|
||||
|
||||
## 9. Traceability
|
||||
|
||||
- **SR-DAQ-001:** Temperature sensor support
|
||||
- **SR-DAQ-002:** SHT40 sensor slot assignment
|
||||
- **SR-DQC-001:** SHT40 presence detection
|
||||
- **SWR-DAQ-001:** Temperature sensor acquisition
|
||||
- **SWR-HW-001:** SAL implementation
|
||||
|
||||
---
|
||||
|
||||
**Document Status:** Complete
|
||||
**Next Review:** Before implementation
|
||||
@@ -0,0 +1,168 @@
|
||||
# Storage Drivers Overview
|
||||
## ASF Sensor Hub (Sub-Hub) Embedded System
|
||||
|
||||
**Document ID:** COMP-STORAGE-OVERVIEW-001
|
||||
**Version:** 1.0
|
||||
**Date:** 2025-02-01
|
||||
**Platform:** ESP32-S3, ESP-IDF v5.4
|
||||
|
||||
---
|
||||
|
||||
## 1. Purpose
|
||||
|
||||
The Storage Drivers provide hardware-specific implementations for SD Card and NVM (Non-Volatile Memory) access, abstracting ESP-IDF v5.4 storage APIs. These drivers enable Data Persistence component to access storage without direct ESP-IDF dependencies.
|
||||
|
||||
**Primary Goal:** Enable Data Persistence to store and retrieve data from SD Card and NVM.
|
||||
|
||||
---
|
||||
|
||||
## 2. Storage Driver Architecture
|
||||
|
||||
```
|
||||
Data Persistence
|
||||
↓
|
||||
Storage Drivers (This Layer)
|
||||
├─> SD Card Driver
|
||||
└─> NVM Driver
|
||||
↓
|
||||
OSAL Wrappers (SPI for SD, NVS for NVM)
|
||||
↓
|
||||
ESP-IDF Storage APIs
|
||||
↓
|
||||
Hardware (SD Card, Flash)
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 3. Storage Driver Components
|
||||
|
||||
| Component ID | Component Name | Purpose | ESP-IDF Service |
|
||||
|--------------|----------------|---------|-----------------|
|
||||
| C-STORAGE-SD | SD Card Driver | SD card file system access | `driver/sdmmc_host.h`, `fatfs/vfs/esp_vfs_fat.h` |
|
||||
| C-STORAGE-NVM | NVM Driver | Non-volatile storage access | `nvs_flash.h`, `nvs.h` |
|
||||
|
||||
---
|
||||
|
||||
## 4. SD Card Driver
|
||||
|
||||
### 4.1 Responsibilities
|
||||
|
||||
- SD card initialization (SDMMC 4-bit mode)
|
||||
- FAT32 file system mounting
|
||||
- File read/write operations
|
||||
- Directory management
|
||||
- Wear-aware write management
|
||||
- SD card health monitoring
|
||||
- Error detection and recovery
|
||||
|
||||
### 4.2 ESP-IDF Integration
|
||||
|
||||
- Uses `sdmmc_host.h` for SDMMC interface
|
||||
- Uses `esp_vfs_fat.h` for FAT32 file system
|
||||
- SDMMC 4-bit mode for performance
|
||||
- SPI mode fallback (if needed)
|
||||
|
||||
### 4.3 File System Structure
|
||||
|
||||
```
|
||||
/sd/
|
||||
├── data/
|
||||
│ ├── sensors/
|
||||
│ │ └── YYYYMMDD_HHMMSS.dat
|
||||
│ └── diagnostics/
|
||||
│ └── diag.log
|
||||
├── config/
|
||||
│ └── machine_constants.json
|
||||
└── ota/
|
||||
└── firmware.bin
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 5. NVM Driver
|
||||
|
||||
### 5.1 Responsibilities
|
||||
|
||||
- NVS (Non-Volatile Storage) initialization
|
||||
- Key-value pair storage
|
||||
- Encrypted storage support
|
||||
- Namespace management
|
||||
- Data integrity verification
|
||||
- Wear leveling (handled by ESP-IDF)
|
||||
|
||||
### 5.2 ESP-IDF Integration
|
||||
|
||||
- Uses `nvs_flash.h` for NVS initialization
|
||||
- Uses `nvs.h` for key-value operations
|
||||
- Supports encrypted NVS partitions
|
||||
- Automatic wear leveling
|
||||
|
||||
### 5.3 Namespace Structure
|
||||
|
||||
- `system` - System configuration
|
||||
- `sensors` - Sensor calibration data
|
||||
- `security` - Security keys and certificates
|
||||
- `diagnostics` - Diagnostic data
|
||||
- `ota` - OTA update state
|
||||
|
||||
---
|
||||
|
||||
## 6. Error Handling
|
||||
|
||||
### 6.1 SD Card Errors
|
||||
|
||||
- Card detection failures
|
||||
- File system corruption
|
||||
- Write failures
|
||||
- Read failures
|
||||
- Card removal detection
|
||||
|
||||
### 6.2 NVM Errors
|
||||
|
||||
- NVS initialization failures
|
||||
- Write failures (full partition)
|
||||
- Read failures (corrupted data)
|
||||
- Namespace errors
|
||||
|
||||
### 6.3 Error Recovery
|
||||
|
||||
- SD card remount on error
|
||||
- NVS erase and reinitialize on corruption
|
||||
- Error reporting to Diagnostics Manager
|
||||
- State transition to SD_DEGRADED (for SD card)
|
||||
|
||||
---
|
||||
|
||||
## 7. Dependencies
|
||||
|
||||
### 7.1 OSAL Dependencies
|
||||
|
||||
- **OSAL-SPI:** SD card SPI mode (if used)
|
||||
- **OSAL-GPIO:** SD card detection pin
|
||||
|
||||
### 7.2 Application Dependencies
|
||||
|
||||
- **Logger:** Storage event logging
|
||||
- **Diagnostics Manager:** Error reporting
|
||||
- **Security Manager:** Encryption support
|
||||
|
||||
---
|
||||
|
||||
## 8. Traceability
|
||||
|
||||
### 8.1 System Requirements
|
||||
|
||||
- **SR-DATA-001:** Persistent sensor data storage
|
||||
- **SR-DATA-004:** Data Persistence component interface
|
||||
- **SR-DATA-012:** SD card failure handling
|
||||
|
||||
### 8.2 Software Requirements
|
||||
|
||||
- **SWR-DATA-001:** Persist timestamped sensor data
|
||||
- **SWR-DATA-012:** Handle SD card failures gracefully
|
||||
- **SWR-DATA-013:** Wear-aware storage management
|
||||
|
||||
---
|
||||
|
||||
**Document Status:** Complete
|
||||
**Next Review:** Before implementation
|
||||
280
1 software design/components/time_sync_service/COMPONENT.md
Normal file
280
1 software design/components/time_sync_service/COMPONENT.md
Normal file
@@ -0,0 +1,280 @@
|
||||
# Time Synchronization Service Component
|
||||
## ASF Sensor Hub (Sub-Hub) Embedded System
|
||||
|
||||
**Component ID:** C-TIME-SYNC-001
|
||||
**Version:** 1.0
|
||||
**Date:** 2025-02-01
|
||||
**Location:** `application_layer/services/time_sync_service/`
|
||||
**Platform:** ESP32-S3, ESP-IDF v5.4
|
||||
|
||||
---
|
||||
|
||||
## 1. Component Overview
|
||||
|
||||
The Time Synchronization Service provides centralized time management, synchronization with external time sources (Main Hub, NTP), and timestamp generation for all system components. This component addresses GAP-SYS-REQ-001 (Missing Time Synchronization Requirements).
|
||||
|
||||
**Primary Purpose:** Ensure accurate system time and synchronized timestamps across all components.
|
||||
|
||||
---
|
||||
|
||||
## 2. Responsibilities
|
||||
|
||||
### 2.1 In-Scope
|
||||
|
||||
- System time management
|
||||
- Time synchronization with Main Hub
|
||||
- Time synchronization with NTP server (optional)
|
||||
- Time zone handling
|
||||
- Timestamp generation
|
||||
- Time drift detection and correction
|
||||
- Time accuracy monitoring
|
||||
|
||||
### 2.2 Out-of-Scope
|
||||
|
||||
- RTC hardware management (handled by ESP-IDF)
|
||||
- Time zone database (uses configured time zone)
|
||||
- Daylight saving time (uses fixed offset)
|
||||
|
||||
---
|
||||
|
||||
## 3. Provided Interfaces
|
||||
|
||||
### 3.1 Time Query Interface
|
||||
|
||||
```c
|
||||
/**
|
||||
* @brief Get current system time (Unix timestamp)
|
||||
* @param timestamp Output timestamp (seconds since epoch)
|
||||
* @return true on success
|
||||
*/
|
||||
bool time_sync_get_time(uint64_t* timestamp);
|
||||
|
||||
/**
|
||||
* @brief Get current system time with microseconds
|
||||
* @param timestamp_us Output timestamp (microseconds since epoch)
|
||||
* @return true on success
|
||||
*/
|
||||
bool time_sync_get_time_us(uint64_t* timestamp_us);
|
||||
|
||||
/**
|
||||
* @brief Get time string (formatted)
|
||||
* @param buffer Output buffer
|
||||
* @param buffer_size Buffer size
|
||||
* @return true on success
|
||||
*/
|
||||
bool time_sync_get_time_string(char* buffer, size_t buffer_size);
|
||||
```
|
||||
|
||||
### 3.2 Time Synchronization Interface
|
||||
|
||||
```c
|
||||
/**
|
||||
* @brief Synchronize time with Main Hub
|
||||
* @param timestamp Timestamp from Main Hub
|
||||
* @return true on success
|
||||
*/
|
||||
bool time_sync_sync_with_main_hub(uint64_t timestamp);
|
||||
|
||||
/**
|
||||
* @brief Synchronize time with NTP server
|
||||
* @param ntp_server NTP server address
|
||||
* @return true on success
|
||||
*/
|
||||
bool time_sync_sync_with_ntp(const char* ntp_server);
|
||||
|
||||
/**
|
||||
* @brief Get time synchronization status
|
||||
* @param status Output status structure
|
||||
* @return true on success
|
||||
*/
|
||||
bool time_sync_get_status(time_sync_status_t* status);
|
||||
```
|
||||
|
||||
### 3.3 Configuration Interface
|
||||
|
||||
```c
|
||||
/**
|
||||
* @brief Configure time zone
|
||||
* @param timezone_offset Time zone offset in seconds
|
||||
* @return true on success
|
||||
*/
|
||||
bool time_sync_set_timezone(int32_t timezone_offset);
|
||||
|
||||
/**
|
||||
* @brief Set time synchronization source priority
|
||||
* @param priority_list Priority list (Main Hub, NTP, RTC, Internal)
|
||||
* @return true on success
|
||||
*/
|
||||
bool time_sync_set_source_priority(const time_source_priority_t* priority_list);
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 4. Time Source Priority
|
||||
|
||||
### 4.1 Priority Order
|
||||
|
||||
1. **Main Hub** (highest priority) - Real-time synchronization
|
||||
2. **NTP Server** (secondary) - Network time protocol
|
||||
3. **RTC** (tertiary) - Real-time clock (if available)
|
||||
4. **Internal Clock** (lowest) - System uptime-based
|
||||
|
||||
### 4.2 Synchronization Strategy
|
||||
|
||||
- Attempt Main Hub sync every 60 seconds
|
||||
- Fallback to NTP if Main Hub unavailable
|
||||
- Use RTC if network unavailable
|
||||
- Use internal clock as last resort
|
||||
|
||||
---
|
||||
|
||||
## 5. Time Accuracy Requirements
|
||||
|
||||
### 5.1 Accuracy Targets
|
||||
|
||||
- **Main Hub Sync:** ±1 second
|
||||
- **NTP Sync:** ±1 second
|
||||
- **RTC Drift:** ±5 seconds per day
|
||||
- **Internal Clock:** ±10 seconds per hour
|
||||
|
||||
### 5.2 Drift Detection
|
||||
|
||||
- Monitor time drift continuously
|
||||
- Detect drift > 2 seconds
|
||||
- Trigger re-synchronization on drift detection
|
||||
- Report drift events to Diagnostics Manager
|
||||
|
||||
---
|
||||
|
||||
## 6. Internal State Machine
|
||||
|
||||
```
|
||||
[UNINITIALIZED]
|
||||
↓ time_sync_init()
|
||||
[INITIALIZED]
|
||||
↓ First sync attempt
|
||||
[SYNCING]
|
||||
↓ Sync success
|
||||
[SYNCHRONIZED]
|
||||
↓ Drift detected or timeout
|
||||
[DRIFT_DETECTED]
|
||||
↓ Re-sync
|
||||
[SYNCING]
|
||||
↓ Sync failure
|
||||
[SYNC_FAILED]
|
||||
↓ Retry
|
||||
[SYNCING]
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 7. ESP-IDF Integration
|
||||
|
||||
### 7.1 ESP-IDF Services Used
|
||||
|
||||
- `esp_sntp.h` - SNTP client for NTP synchronization
|
||||
- `time.h` - Standard time functions
|
||||
- `sys/time.h` - Time structures
|
||||
|
||||
### 7.2 RTC Support
|
||||
|
||||
- Uses ESP32-S3 RTC if available
|
||||
- RTC battery backup (optional hardware)
|
||||
- RTC calibration support
|
||||
|
||||
---
|
||||
|
||||
## 8. Error Handling
|
||||
|
||||
### 8.1 Error Detection
|
||||
|
||||
- Synchronization failures
|
||||
- Time drift exceeding limits
|
||||
- Invalid timestamps
|
||||
- Network timeouts
|
||||
|
||||
### 8.2 Error Recovery
|
||||
|
||||
- Automatic retry with exponential backoff
|
||||
- Fallback to lower-priority time source
|
||||
- Error reporting to Diagnostics Manager
|
||||
- State transition handling
|
||||
|
||||
### 8.3 Diagnostic Events
|
||||
|
||||
- `DIAG-TIME-SYNC-0001`: Time synchronization failure
|
||||
- `DIAG-TIME-SYNC-0002`: Time drift detected
|
||||
- `DIAG-TIME-SYNC-0003`: Invalid timestamp received
|
||||
- `DIAG-TIME-SYNC-0004`: Time source unavailable
|
||||
|
||||
---
|
||||
|
||||
## 9. Configuration
|
||||
|
||||
### 9.1 Machine Constants
|
||||
|
||||
- Time zone offset
|
||||
- NTP server address
|
||||
- Synchronization interval
|
||||
- Drift threshold
|
||||
|
||||
### 9.2 Runtime Configuration
|
||||
|
||||
- Time source priority
|
||||
- Synchronization frequency
|
||||
- Drift detection sensitivity
|
||||
|
||||
---
|
||||
|
||||
## 10. Dependencies
|
||||
|
||||
### 10.1 OSAL Dependencies
|
||||
|
||||
- **OSAL-TASK:** Background synchronization task
|
||||
|
||||
### 10.2 Application Dependencies
|
||||
|
||||
- **Communication Manager:** Main Hub time sync
|
||||
- **Network Stack:** NTP synchronization
|
||||
- **Logger:** Time event logging
|
||||
- **Diagnostics Manager:** Error reporting
|
||||
|
||||
---
|
||||
|
||||
## 11. Traceability
|
||||
|
||||
### 11.1 System Requirements (Gap Resolution)
|
||||
|
||||
- **SR-TIME-001:** System shall synchronize time with Main Hub or NTP server (GAP-SYS-REQ-001)
|
||||
- **SR-TIME-002:** System shall maintain time accuracy within ±1 second (GAP-SYS-REQ-001)
|
||||
- **SR-TIME-003:** System shall handle time zone configuration (GAP-SYS-REQ-001)
|
||||
- **SR-TIME-004:** System shall detect and report time synchronization failures (GAP-SYS-REQ-001)
|
||||
|
||||
### 11.2 Software Requirements
|
||||
|
||||
- **SWR-DAQ-008:** Timestamp generation for sensor data
|
||||
- **SWR-DIAG-004:** Timestamp diagnostic events
|
||||
|
||||
---
|
||||
|
||||
## 12. Implementation Notes
|
||||
|
||||
### 12.1 ESP-IDF v5.4 Specifics
|
||||
|
||||
- Uses SNTP client for NTP synchronization
|
||||
- Supports multiple NTP servers
|
||||
- Automatic daylight saving time (if configured)
|
||||
- RTC support via ESP32-S3 RTC peripheral
|
||||
|
||||
### 12.2 Performance Considerations
|
||||
|
||||
- Synchronization operations are non-blocking
|
||||
- Background task for periodic sync
|
||||
- Minimal CPU overhead
|
||||
- Memory-efficient timestamp storage
|
||||
|
||||
---
|
||||
|
||||
**Document Status:** Complete
|
||||
**Next Review:** Before implementation
|
||||
**Approval Required:** Software Architect
|
||||
192
1 software design/components/watchdog_manager/COMPONENT.md
Normal file
192
1 software design/components/watchdog_manager/COMPONENT.md
Normal file
@@ -0,0 +1,192 @@
|
||||
# Watchdog Manager Component
|
||||
## ASF Sensor Hub (Sub-Hub) Embedded System
|
||||
|
||||
**Component ID:** C-WATCHDOG-001
|
||||
**Version:** 1.0
|
||||
**Date:** 2025-02-01
|
||||
**Location:** `application_layer/services/watchdog_manager/`
|
||||
**Platform:** ESP32-S3, ESP-IDF v5.4
|
||||
|
||||
---
|
||||
|
||||
## 1. Component Overview
|
||||
|
||||
The Watchdog Manager implements a layered watchdog system providing task-level, interrupt-level, and system-level watchdog protection. This component ensures system reliability by detecting deadlocks, hangs, and system freezes.
|
||||
|
||||
**Primary Purpose:** Provide multi-level watchdog protection for system reliability.
|
||||
|
||||
---
|
||||
|
||||
## 2. Responsibilities
|
||||
|
||||
### 2.1 In-Scope
|
||||
|
||||
- Task Watchdog (Task WDT) management
|
||||
- Interrupt Watchdog (Interrupt WDT) management
|
||||
- RTC Watchdog (RTC WDT) management
|
||||
- Watchdog timeout configuration
|
||||
- Watchdog feeding coordination
|
||||
- Watchdog event reporting
|
||||
|
||||
### 2.2 Out-of-Scope
|
||||
|
||||
- Watchdog hardware management (handled by ESP-IDF)
|
||||
- Watchdog reset handling (handled by System State Manager)
|
||||
|
||||
---
|
||||
|
||||
## 3. Layered Watchdog Architecture
|
||||
|
||||
```
|
||||
┌─────────────────────────────────────┐
|
||||
│ RTC Watchdog (30s) │ System-level protection
|
||||
│ └─> Detects total system freeze │
|
||||
├─────────────────────────────────────┤
|
||||
│ Interrupt Watchdog (3s) │ Interrupt-level protection
|
||||
│ └─> Detects ISR hangs │
|
||||
├─────────────────────────────────────┤
|
||||
│ Task Watchdog (10s) │ Task-level protection
|
||||
│ └─> Detects task deadlocks │
|
||||
└─────────────────────────────────────┘
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 4. Provided Interfaces
|
||||
|
||||
### 4.1 Task Watchdog Interface
|
||||
|
||||
```c
|
||||
/**
|
||||
* @brief Register task with Task Watchdog
|
||||
* @param task_handle Task handle
|
||||
* @param timeout_ms Timeout in milliseconds
|
||||
* @return true on success
|
||||
*/
|
||||
bool watchdog_task_register(osal_task_handle_t task_handle, uint32_t timeout_ms);
|
||||
|
||||
/**
|
||||
* @brief Feed Task Watchdog
|
||||
* @param task_handle Task handle
|
||||
* @return true on success
|
||||
*/
|
||||
bool watchdog_task_feed(osal_task_handle_t task_handle);
|
||||
|
||||
/**
|
||||
* @brief Unregister task from Task Watchdog
|
||||
* @param task_handle Task handle
|
||||
* @return true on success
|
||||
*/
|
||||
bool watchdog_task_unregister(osal_task_handle_t task_handle);
|
||||
```
|
||||
|
||||
### 4.2 Interrupt Watchdog Interface
|
||||
|
||||
```c
|
||||
/**
|
||||
* @brief Feed Interrupt Watchdog
|
||||
* @return true on success
|
||||
*/
|
||||
bool watchdog_interrupt_feed(void);
|
||||
```
|
||||
|
||||
### 4.3 RTC Watchdog Interface
|
||||
|
||||
```c
|
||||
/**
|
||||
* @brief Feed RTC Watchdog
|
||||
* @return true on success
|
||||
*/
|
||||
bool watchdog_rtc_feed(void);
|
||||
|
||||
/**
|
||||
* @brief Initialize RTC Watchdog
|
||||
* @param timeout_ms Timeout in milliseconds
|
||||
* @return true on success
|
||||
*/
|
||||
bool watchdog_rtc_init(uint32_t timeout_ms);
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
## 5. Watchdog Configuration
|
||||
|
||||
### 5.1 Default Timeouts
|
||||
|
||||
- **Task Watchdog:** 10 seconds (baseline)
|
||||
- **Interrupt Watchdog:** 3 seconds (baseline)
|
||||
- **RTC Watchdog:** 30 seconds (baseline)
|
||||
|
||||
### 5.2 Configurable Timeouts
|
||||
|
||||
- Task-specific timeouts (from Machine Constants)
|
||||
- Interrupt watchdog timeout (system-wide)
|
||||
- RTC watchdog timeout (system-wide)
|
||||
|
||||
---
|
||||
|
||||
## 6. ESP-IDF Integration
|
||||
|
||||
### 6.1 ESP-IDF Services Used
|
||||
|
||||
- `esp_task_wdt.h` - Task Watchdog
|
||||
- `esp_intr_wdt.h` - Interrupt Watchdog
|
||||
- `esp_system.h` - RTC Watchdog
|
||||
|
||||
### 6.2 Watchdog Behavior
|
||||
|
||||
- Task Watchdog: Resets system on timeout
|
||||
- Interrupt Watchdog: Resets system on timeout
|
||||
- RTC Watchdog: Resets system on timeout (final safety net)
|
||||
|
||||
---
|
||||
|
||||
## 7. Error Handling
|
||||
|
||||
### 7.1 Watchdog Timeout Handling
|
||||
|
||||
- Log timeout event to Diagnostics Manager
|
||||
- Generate diagnostic event (FATAL severity)
|
||||
- Trigger system reset (handled by ESP-IDF)
|
||||
- State transition to FAULT (if possible before reset)
|
||||
|
||||
### 7.2 Diagnostic Events
|
||||
|
||||
- `DIAG-DIAG-WDT-0001`: Task Watchdog timeout
|
||||
- `DIAG-DIAG-WDT-0002`: Interrupt Watchdog timeout
|
||||
- `DIAG-DIAG-WDT-0003`: RTC Watchdog timeout
|
||||
|
||||
---
|
||||
|
||||
## 8. Dependencies
|
||||
|
||||
### 8.1 OSAL Dependencies
|
||||
|
||||
- **OSAL-TASK:** Task handle management
|
||||
|
||||
### 8.2 Application Dependencies
|
||||
|
||||
- **Logger:** Watchdog event logging
|
||||
- **Diagnostics Manager:** Error reporting
|
||||
- **System State Manager:** State transition on timeout
|
||||
|
||||
---
|
||||
|
||||
## 9. Traceability
|
||||
|
||||
### 9.1 System Requirements
|
||||
|
||||
- **SR-DIAG-012:** Task Watchdog implementation
|
||||
- **SR-DIAG-013:** Interrupt Watchdog implementation
|
||||
- **SR-DIAG-014:** RTC Watchdog implementation
|
||||
|
||||
### 9.2 Software Requirements
|
||||
|
||||
- **SWR-DIAG-012:** Task Watchdog with 10-second timeout
|
||||
- **SWR-DIAG-013:** Interrupt Watchdog with 3-second timeout
|
||||
- **SWR-DIAG-014:** RTC Watchdog with 30-second timeout
|
||||
|
||||
---
|
||||
|
||||
**Document Status:** Complete
|
||||
**Next Review:** Before implementation
|
||||
Reference in New Issue
Block a user