d2b8bd7940
Add a production-ready, educational bootloader extension for STM32 MCUs. Core features: - Custom binary protocol with CRC16/CRC32 verification - AES-256 encryption for firmware security - Dual-bank firmware management with rollback support - Version management and firmware validation - Modular architecture with BSP abstraction layer Project structure: - include/: Header files (bootloader.h, bsp_flash.h, bsp_uart.h) - src/: Core implementation (bootloader, protocol, crypto, firmware manager) - port/: MCU-specific adaptation layer (STM32F4xx) - docs/: Documentation (integration guide, porting guide) Supported platforms: - STM32F4xx (primary) - STM32F1xx (via porting) Quick start: 1. Copy extension module to project 2. Configure bootloader_config.h 3. Modify linker script for APP_BASE_ADDR 4. Build and flash bootloader to 0x08000000 Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
45 lines
1.0 KiB
C
45 lines
1.0 KiB
C
#include "stm32f4xx_hal_uart.h"
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#include <stdint.h>
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#define UART_HANDLE huart1
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extern UART_HandleTypeDef UART_HANDLE;
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int uart_port_init(uint32_t baudrate) {
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if (UART_HANDLE.Init.BaudRate != baudrate) {
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UART_HANDLE.Init.BaudRate = baudrate;
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if (HAL_UART_Init(&UART_HANDLE) != HAL_OK) {
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return -1;
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}
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}
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return 0;
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}
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int uart_port_send(const uint8_t *data, uint32_t length) {
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if (HAL_UART_Transmit(&UART_HANDLE, (uint8_t *)data, length, 1000) != HAL_OK) {
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return -1;
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}
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return 0;
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}
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int uart_port_recv(uint8_t *buffer, uint32_t length, uint32_t timeout_ms) {
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if (HAL_UART_Receive(&UART_HANDLE, buffer, length, timeout_ms) != HAL_OK) {
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return -1;
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}
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return 0;
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}
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void uart_port_deinit(void) {
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HAL_UART_DeInit(&UART_HANDLE);
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}
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static const bsp_uart_ops_t uart_ops = {
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.init = uart_port_init,
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.send = uart_port_send,
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.recv = uart_port_recv,
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.deinit = uart_port_deinit,
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};
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void uart_port_register(void) {
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bsp_uart_register(&uart_ops);
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}
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