108 lines
3.4 KiB
C
108 lines
3.4 KiB
C
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#include "system.h"
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#include "uart.h"
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#include "relay.h"
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DMA_HandleTypeDef hdma_usart3_rx;
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DMA_HandleTypeDef hdma_uart4_rx;
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static IWDG_HandleTypeDef hiwdg; /* 独立看门狗句柄，本模块内私有 */
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/* LSI(~40kHz) / 256分频 / 重载4095 → 超时约26s（LSI 漂移下最短约17s） */
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static void MX_IWDG_Init(void)
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{
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hiwdg.Instance = IWDG;
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hiwdg.Init.Prescaler = IWDG_PRESCALER_256;
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hiwdg.Init.Reload = 4095;
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if (HAL_IWDG_Init(&hiwdg) != HAL_OK) Error_Handler();
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}
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/* 喂狗：主循环和 app_bg_service（长阻塞等待间隙）都必须调用 */
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void IWDG_Feed(void)
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{
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HAL_IWDG_Refresh(&hiwdg);
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}
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/**
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* @brief 基础硬件初始化一条龙：HAL/时钟/GPIO/DMA/UART/看门狗
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* @note BootLoader 跳转前已启动 IWDG，这里尽早接管喂狗；
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* 之后 NET_init 等长阻塞流程通过 bg_delay → app_bg_service 喂狗
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*/
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void Board_Init(void)
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{
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HAL_Init();
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SystemClock_Config();
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MX_GPIO_Init();
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MX_DMA_Init();
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MX_USART1_UART_Init();
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MX_USART2_UART_Init(); /* RS485 喂料秤 */
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MX_USART3_UART_Init(); /* 4G Air780E */
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MX_UART4_UART_Init(); /* WiFi ESP-01S */
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MX_IWDG_Init();
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}
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void SystemClock_Config(void)
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{
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RCC_OscInitTypeDef RCC_OscInitStruct = {0};
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RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
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RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSE;
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RCC_OscInitStruct.HSEState = RCC_HSE_ON;
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RCC_OscInitStruct.HSEPredivValue = RCC_HSE_PREDIV_DIV1;
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RCC_OscInitStruct.HSIState = RCC_HSI_ON;
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RCC_OscInitStruct.PLL.PLLState = RCC_PLL_ON;
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RCC_OscInitStruct.PLL.PLLSource = RCC_PLLSOURCE_HSE;
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RCC_OscInitStruct.PLL.PLLMUL = RCC_PLL_MUL9;
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if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) Error_Handler();
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RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK|RCC_CLOCKTYPE_PCLK1|RCC_CLOCKTYPE_PCLK2;
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RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_PLLCLK;
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RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
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RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV2;
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RCC_ClkInitStruct.APB2CLKDivider = RCC_HCLK_DIV1;
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if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_2) != HAL_OK) Error_Handler();
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}
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void MX_DMA_Init(void)
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{
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__HAL_RCC_DMA1_CLK_ENABLE();
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__HAL_RCC_DMA2_CLK_ENABLE();
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HAL_NVIC_SetPriority(DMA1_Channel3_IRQn, 0, 0);
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HAL_NVIC_EnableIRQ(DMA1_Channel3_IRQn);
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HAL_NVIC_SetPriority(DMA2_Channel3_IRQn, 0, 0);
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HAL_NVIC_EnableIRQ(DMA2_Channel3_IRQn);
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}
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void MX_GPIO_Init(void)
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{
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GPIO_InitTypeDef g = {0};
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__HAL_RCC_GPIOD_CLK_ENABLE();
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__HAL_RCC_GPIOA_CLK_ENABLE();
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__HAL_RCC_GPIOB_CLK_ENABLE();
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__HAL_RCC_GPIOC_CLK_ENABLE();
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/* 继电器为高电平吸合，上电瞬间必须立即置低，防止浮空导致误吸合 */
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HAL_GPIO_WritePin(Relay1_Port, Relay1_Pin, GPIO_PIN_RESET);
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HAL_GPIO_WritePin(Relay2_Port, Relay2_Pin, GPIO_PIN_RESET);
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HAL_GPIO_WritePin(Relay3_Port, Relay3_Pin, GPIO_PIN_RESET);
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HAL_GPIO_WritePin(Relay4_Port, Relay4_Pin, GPIO_PIN_RESET);
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g.Mode = GPIO_MODE_OUTPUT_PP;
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g.Pull = GPIO_NOPULL;
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g.Speed = GPIO_SPEED_FREQ_LOW;
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g.Pin = Relay1_Pin; HAL_GPIO_Init(Relay1_Port, &g);
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g.Pin = Relay2_Pin; HAL_GPIO_Init(Relay2_Port, &g);
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g.Pin = Relay3_Pin; HAL_GPIO_Init(Relay3_Port, &g);
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g.Pin = Relay4_Pin; HAL_GPIO_Init(Relay4_Port, &g);
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}
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void Error_Handler(void)
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{
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/* 初始化失败：停在这里，若 IWDG 已启动则由看门狗复位 */
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__disable_irq();
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while (1)
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{
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}
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}
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