wandering1
7c8669e52a
批 1 的 1-2 / 1-3：把屏板（DTU-LCD）发来的 6 B 帧 A 在 USART1 上稳定收下来。 1-2 波特率：.ioc 不保存任何 UART 的波特率（只有 USART1.IPParameters=VirtualMode），GUI 里改也不落盘，所以只能在 Src/usart.c 的 USER CODE BEGIN USART1_Init 2 区覆盖 huart1.Init.BaudRate 后重调一次 HAL_UART_Init（第二次调用时 gState 已非 RESET，HAL 只重算 BRR、不再跑 MspInit，GPIO/DMA/NVIC 不会被重配）。开机日志实测 BRR=0x0078，与理论值 84 MHz/(16x700 kHz)=7.5 逐位相符，误差 0%。 1-3 收中断：新建 Drivers/BSP/ScreenLink/sb_link.c/h——16 B 缓冲 + IDLE 中断断帧、帧 A 校验、错误中断里按 RM0090 清 ORE/NE/FE/PE、周期统计上报。 HAL_UARTEx_RxEventCallback / HAL_UART_ErrorCallback 是全局单例（唯一实现 在 rs485.c），故只在那里各加一行转发，按句柄过滤放在 sb_link 内。 台架实测（PC + USB 转 TTL 顶替屏板，COM6@700000）撞出两个真问题： - 错误回调里无条件重挂 -> 出现 err=160 / rearm=160 同步增长，看着像每帧 都重挂失败。真因是 HAL 把 NE/FE/PE 归为非阻塞型（接收照跑、RxState 仍是 BUSY_RX），此时 ReceiveToIdle_IT 只会返回 HAL_BUSY。改为仅当 RxState == HAL_UART_STATE_READY（ORE 那类阻塞型）时才重挂。 - 日志字面量里带中文 -> ARMCC #870-D invalid multibyte character sequence。字面量一律纯 ASCII，中文只写注释。 验证：主机单测 81/81 PASSED（test/host/sb_link/，其中按 RM0090 的清除语义 把"必须 SR->DR 顺序才清得掉 ORE"钉成断言）；Keil 0 错误 0 警告；台架 rx == 发送帧数、ok == rx、crc=0、len=0、size=6、keys 随按键帧递增；先用 错波特率灌 64 B 垃圾（len=31、bits=0x06）后自动恢复且 rearm=0。 新增 test/host/screenlink_bench.py 作为可复跑的屏板激励（--key / --glitch-baud）。
497 lines
14 KiB
C
497 lines
14 KiB
C
/* USER CODE BEGIN Header */
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/**
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******************************************************************************
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* @file usart.c
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* @brief This file provides code for the configuration
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* of the USART instances.
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2026 STMicroelectronics.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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/* USER CODE END Header */
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/* Includes ------------------------------------------------------------------*/
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#include "usart.h"
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/* USER CODE BEGIN 0 */
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#include "sb_link.h" /* SB_LINK_BAUD：USART1 的屏板链路波特率（见 USART1_Init 2 区） */
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/* USER CODE END 0 */
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UART_HandleTypeDef huart4;
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UART_HandleTypeDef huart5;
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UART_HandleTypeDef huart1;
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UART_HandleTypeDef huart2;
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UART_HandleTypeDef huart3;
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DMA_HandleTypeDef hdma_usart1_tx;
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DMA_HandleTypeDef hdma_usart1_rx;
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/* UART4 init function */
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void MX_UART4_Init(void)
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{
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/* USER CODE BEGIN UART4_Init 0 */
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/* USER CODE END UART4_Init 0 */
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/* USER CODE BEGIN UART4_Init 1 */
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/* USER CODE END UART4_Init 1 */
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huart4.Instance = UART4;
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huart4.Init.BaudRate = 115200;
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huart4.Init.WordLength = UART_WORDLENGTH_8B;
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huart4.Init.StopBits = UART_STOPBITS_1;
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huart4.Init.Parity = UART_PARITY_NONE;
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huart4.Init.Mode = UART_MODE_TX_RX;
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huart4.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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huart4.Init.OverSampling = UART_OVERSAMPLING_16;
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if (HAL_UART_Init(&huart4) != HAL_OK)
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{
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Error_Handler();
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}
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/* USER CODE BEGIN UART4_Init 2 */
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/* USER CODE END UART4_Init 2 */
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}
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/* UART5 init function */
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void MX_UART5_Init(void)
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{
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/* USER CODE BEGIN UART5_Init 0 */
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/* USER CODE END UART5_Init 0 */
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/* USER CODE BEGIN UART5_Init 1 */
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/* USER CODE END UART5_Init 1 */
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huart5.Instance = UART5;
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huart5.Init.BaudRate = 115200;
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huart5.Init.WordLength = UART_WORDLENGTH_8B;
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huart5.Init.StopBits = UART_STOPBITS_1;
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huart5.Init.Parity = UART_PARITY_NONE;
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huart5.Init.Mode = UART_MODE_TX_RX;
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huart5.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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huart5.Init.OverSampling = UART_OVERSAMPLING_16;
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if (HAL_UART_Init(&huart5) != HAL_OK)
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{
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Error_Handler();
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}
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/* USER CODE BEGIN UART5_Init 2 */
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/* USER CODE END UART5_Init 2 */
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}
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/* USART1 init function */
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void MX_USART1_UART_Init(void)
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{
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/* USER CODE BEGIN USART1_Init 0 */
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/* USER CODE END USART1_Init 0 */
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/* USER CODE BEGIN USART1_Init 1 */
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/* USER CODE END USART1_Init 1 */
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huart1.Instance = USART1;
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huart1.Init.BaudRate = 115200;
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huart1.Init.WordLength = UART_WORDLENGTH_8B;
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huart1.Init.StopBits = UART_STOPBITS_1;
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huart1.Init.Parity = UART_PARITY_NONE;
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huart1.Init.Mode = UART_MODE_TX_RX;
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huart1.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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huart1.Init.OverSampling = UART_OVERSAMPLING_16;
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if (HAL_UART_Init(&huart1) != HAL_OK)
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{
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Error_Handler();
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}
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/* USER CODE BEGIN USART1_Init 2 */
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/* 屏板链路：USART1 固定 700000 8N1、16 倍过采样（其余字段生成值即 8N1/16 倍，不用改）。
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*
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* 为什么写在这里而不是上面生成区：那几行 `huart1.Init.*` 在 USER CODE 之外，
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* CubeMX 重生成会把 BaudRate 打回 115200，且**不会报任何编译错**。
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* 为什么不能改 .ioc 解决：.ioc **不保存任何 UART 的波特率**
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* （只有 `USART1.IPParameters=VirtualMode`），GUI 里改波特率也不落盘 —— 这条与
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* IWDG/看门狗那些"写进 .ioc 才不怕重生成"的情形不同，没有 .ioc 这条路。
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*
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* 重新 HAL_UART_Init 是安全的：第二次调用时 gState 已非 RESET，HAL 只重算 BRR、
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* 不再跑 HAL_UART_MspInit（GPIO / DMA / NVIC 不会被重配，见
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* stm32f4xx_hal_uart.c 的 HAL_UART_Init 开头那段 if (gState == RESET)）。
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* 理论值：APB2 = 84 MHz（APB2CLKDivider = HCLK/2），84 000 000 / (16 x 700 000) = 7.5
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* → 整数部分 7、小数部分 0.5x16 = 8 → BRR = 0x0078，误差 0 %。 */
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huart1.Init.BaudRate = SB_LINK_BAUD;
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if (HAL_UART_Init(&huart1) != HAL_OK)
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{
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Error_Handler();
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}
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/* USER CODE END USART1_Init 2 */
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}
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/* USART2 init function */
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void MX_USART2_UART_Init(void)
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{
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/* USER CODE BEGIN USART2_Init 0 */
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/* USER CODE END USART2_Init 0 */
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/* USER CODE BEGIN USART2_Init 1 */
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/* USER CODE END USART2_Init 1 */
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huart2.Instance = USART2;
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huart2.Init.BaudRate = 115200;
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huart2.Init.WordLength = UART_WORDLENGTH_8B;
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huart2.Init.StopBits = UART_STOPBITS_1;
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huart2.Init.Parity = UART_PARITY_NONE;
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huart2.Init.Mode = UART_MODE_TX_RX;
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huart2.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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huart2.Init.OverSampling = UART_OVERSAMPLING_16;
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if (HAL_UART_Init(&huart2) != HAL_OK)
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{
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Error_Handler();
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}
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/* USER CODE BEGIN USART2_Init 2 */
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/* USER CODE END USART2_Init 2 */
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}
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/* USART3 init function */
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void MX_USART3_UART_Init(void)
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{
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/* USER CODE BEGIN USART3_Init 0 */
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/* USER CODE END USART3_Init 0 */
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/* USER CODE BEGIN USART3_Init 1 */
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/* USER CODE END USART3_Init 1 */
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huart3.Instance = USART3;
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huart3.Init.BaudRate = 115200;
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huart3.Init.WordLength = UART_WORDLENGTH_8B;
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huart3.Init.StopBits = UART_STOPBITS_1;
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huart3.Init.Parity = UART_PARITY_NONE;
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huart3.Init.Mode = UART_MODE_TX_RX;
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huart3.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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huart3.Init.OverSampling = UART_OVERSAMPLING_16;
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if (HAL_UART_Init(&huart3) != HAL_OK)
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{
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Error_Handler();
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}
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/* USER CODE BEGIN USART3_Init 2 */
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/* USER CODE END USART3_Init 2 */
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}
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void HAL_UART_MspInit(UART_HandleTypeDef* uartHandle)
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{
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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if(uartHandle->Instance==UART4)
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{
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/* USER CODE BEGIN UART4_MspInit 0 */
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/* USER CODE END UART4_MspInit 0 */
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/* UART4 clock enable */
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__HAL_RCC_UART4_CLK_ENABLE();
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__HAL_RCC_GPIOC_CLK_ENABLE();
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/**UART4 GPIO Configuration
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PC10 ------> UART4_TX
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PC11 ------> UART4_RX
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*/
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GPIO_InitStruct.Pin = ST_TX4_Pin|ST_RX4_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.Alternate = GPIO_AF8_UART4;
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HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
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/* UART4 interrupt Init */
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HAL_NVIC_SetPriority(UART4_IRQn, 5, 0);
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HAL_NVIC_EnableIRQ(UART4_IRQn);
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/* USER CODE BEGIN UART4_MspInit 1 */
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/* USER CODE END UART4_MspInit 1 */
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}
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else if(uartHandle->Instance==UART5)
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{
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/* USER CODE BEGIN UART5_MspInit 0 */
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/* USER CODE END UART5_MspInit 0 */
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/* UART5 clock enable */
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__HAL_RCC_UART5_CLK_ENABLE();
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__HAL_RCC_GPIOC_CLK_ENABLE();
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__HAL_RCC_GPIOD_CLK_ENABLE();
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/**UART5 GPIO Configuration
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PC12 ------> UART5_TX
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PD2 ------> UART5_RX
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*/
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GPIO_InitStruct.Pin = ST_TX1_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.Alternate = GPIO_AF8_UART5;
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HAL_GPIO_Init(ST_TX1_GPIO_Port, &GPIO_InitStruct);
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GPIO_InitStruct.Pin = ST_RX1_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.Alternate = GPIO_AF8_UART5;
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HAL_GPIO_Init(ST_RX1_GPIO_Port, &GPIO_InitStruct);
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/* UART5 interrupt Init */
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HAL_NVIC_SetPriority(UART5_IRQn, 5, 0);
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HAL_NVIC_EnableIRQ(UART5_IRQn);
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/* USER CODE BEGIN UART5_MspInit 1 */
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/* USER CODE END UART5_MspInit 1 */
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}
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else if(uartHandle->Instance==USART1)
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{
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/* USER CODE BEGIN USART1_MspInit 0 */
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/* USER CODE END USART1_MspInit 0 */
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/* USART1 clock enable */
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__HAL_RCC_USART1_CLK_ENABLE();
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__HAL_RCC_GPIOA_CLK_ENABLE();
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/**USART1 GPIO Configuration
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PA9 ------> USART1_TX
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PA10 ------> USART1_RX
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*/
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GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
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HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
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/* USART1 DMA Init */
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/* USART1_TX Init */
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hdma_usart1_tx.Instance = DMA2_Stream7;
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hdma_usart1_tx.Init.Channel = DMA_CHANNEL_4;
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hdma_usart1_tx.Init.Direction = DMA_MEMORY_TO_PERIPH;
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hdma_usart1_tx.Init.PeriphInc = DMA_PINC_DISABLE;
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hdma_usart1_tx.Init.MemInc = DMA_MINC_ENABLE;
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hdma_usart1_tx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
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hdma_usart1_tx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
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hdma_usart1_tx.Init.Mode = DMA_NORMAL;
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hdma_usart1_tx.Init.Priority = DMA_PRIORITY_LOW;
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hdma_usart1_tx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
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if (HAL_DMA_Init(&hdma_usart1_tx) != HAL_OK)
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{
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Error_Handler();
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}
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__HAL_LINKDMA(uartHandle,hdmatx,hdma_usart1_tx);
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/* USART1_RX Init */
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hdma_usart1_rx.Instance = DMA2_Stream2;
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hdma_usart1_rx.Init.Channel = DMA_CHANNEL_4;
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hdma_usart1_rx.Init.Direction = DMA_PERIPH_TO_MEMORY;
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hdma_usart1_rx.Init.PeriphInc = DMA_PINC_DISABLE;
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hdma_usart1_rx.Init.MemInc = DMA_MINC_ENABLE;
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hdma_usart1_rx.Init.PeriphDataAlignment = DMA_PDATAALIGN_BYTE;
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hdma_usart1_rx.Init.MemDataAlignment = DMA_MDATAALIGN_BYTE;
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hdma_usart1_rx.Init.Mode = DMA_CIRCULAR;
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hdma_usart1_rx.Init.Priority = DMA_PRIORITY_LOW;
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hdma_usart1_rx.Init.FIFOMode = DMA_FIFOMODE_DISABLE;
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if (HAL_DMA_Init(&hdma_usart1_rx) != HAL_OK)
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{
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Error_Handler();
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}
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__HAL_LINKDMA(uartHandle,hdmarx,hdma_usart1_rx);
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/* USART1 interrupt Init */
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HAL_NVIC_SetPriority(USART1_IRQn, 5, 0);
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HAL_NVIC_EnableIRQ(USART1_IRQn);
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/* USER CODE BEGIN USART1_MspInit 1 */
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/* USER CODE END USART1_MspInit 1 */
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}
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else if(uartHandle->Instance==USART2)
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{
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/* USER CODE BEGIN USART2_MspInit 0 */
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/* USER CODE END USART2_MspInit 0 */
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/* USART2 clock enable */
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__HAL_RCC_USART2_CLK_ENABLE();
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__HAL_RCC_GPIOD_CLK_ENABLE();
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/**USART2 GPIO Configuration
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PD5 ------> USART2_TX
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PD6 ------> USART2_RX
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*/
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GPIO_InitStruct.Pin = ST_TX3_Pin|ST_RX3_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.Alternate = GPIO_AF7_USART2;
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HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
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/* USART2 interrupt Init */
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HAL_NVIC_SetPriority(USART2_IRQn, 5, 0);
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HAL_NVIC_EnableIRQ(USART2_IRQn);
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/* USER CODE BEGIN USART2_MspInit 1 */
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/* USER CODE END USART2_MspInit 1 */
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}
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else if(uartHandle->Instance==USART3)
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{
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/* USER CODE BEGIN USART3_MspInit 0 */
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/* USER CODE END USART3_MspInit 0 */
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/* USART3 clock enable */
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__HAL_RCC_USART3_CLK_ENABLE();
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__HAL_RCC_GPIOB_CLK_ENABLE();
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/**USART3 GPIO Configuration
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PB10 ------> USART3_TX
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PB11 ------> USART3_RX
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*/
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GPIO_InitStruct.Pin = ST_TX2_Pin|ST_RX2_Pin;
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GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
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GPIO_InitStruct.Pull = GPIO_NOPULL;
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GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
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GPIO_InitStruct.Alternate = GPIO_AF7_USART3;
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HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
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/* USART3 interrupt Init */
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HAL_NVIC_SetPriority(USART3_IRQn, 5, 0);
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HAL_NVIC_EnableIRQ(USART3_IRQn);
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/* USER CODE BEGIN USART3_MspInit 1 */
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/* USER CODE END USART3_MspInit 1 */
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}
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}
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void HAL_UART_MspDeInit(UART_HandleTypeDef* uartHandle)
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{
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if(uartHandle->Instance==UART4)
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{
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/* USER CODE BEGIN UART4_MspDeInit 0 */
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/* USER CODE END UART4_MspDeInit 0 */
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/* Peripheral clock disable */
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__HAL_RCC_UART4_CLK_DISABLE();
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/**UART4 GPIO Configuration
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PC10 ------> UART4_TX
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PC11 ------> UART4_RX
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*/
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HAL_GPIO_DeInit(GPIOC, ST_TX4_Pin|ST_RX4_Pin);
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/* UART4 interrupt Deinit */
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HAL_NVIC_DisableIRQ(UART4_IRQn);
|
||
/* USER CODE BEGIN UART4_MspDeInit 1 */
|
||
|
||
/* USER CODE END UART4_MspDeInit 1 */
|
||
}
|
||
else if(uartHandle->Instance==UART5)
|
||
{
|
||
/* USER CODE BEGIN UART5_MspDeInit 0 */
|
||
|
||
/* USER CODE END UART5_MspDeInit 0 */
|
||
/* Peripheral clock disable */
|
||
__HAL_RCC_UART5_CLK_DISABLE();
|
||
|
||
/**UART5 GPIO Configuration
|
||
PC12 ------> UART5_TX
|
||
PD2 ------> UART5_RX
|
||
*/
|
||
HAL_GPIO_DeInit(ST_TX1_GPIO_Port, ST_TX1_Pin);
|
||
|
||
HAL_GPIO_DeInit(ST_RX1_GPIO_Port, ST_RX1_Pin);
|
||
|
||
/* UART5 interrupt Deinit */
|
||
HAL_NVIC_DisableIRQ(UART5_IRQn);
|
||
/* USER CODE BEGIN UART5_MspDeInit 1 */
|
||
|
||
/* USER CODE END UART5_MspDeInit 1 */
|
||
}
|
||
else if(uartHandle->Instance==USART1)
|
||
{
|
||
/* USER CODE BEGIN USART1_MspDeInit 0 */
|
||
|
||
/* USER CODE END USART1_MspDeInit 0 */
|
||
/* Peripheral clock disable */
|
||
__HAL_RCC_USART1_CLK_DISABLE();
|
||
|
||
/**USART1 GPIO Configuration
|
||
PA9 ------> USART1_TX
|
||
PA10 ------> USART1_RX
|
||
*/
|
||
HAL_GPIO_DeInit(GPIOA, GPIO_PIN_9|GPIO_PIN_10);
|
||
|
||
/* USART1 DMA DeInit */
|
||
HAL_DMA_DeInit(uartHandle->hdmatx);
|
||
HAL_DMA_DeInit(uartHandle->hdmarx);
|
||
|
||
/* USART1 interrupt Deinit */
|
||
HAL_NVIC_DisableIRQ(USART1_IRQn);
|
||
/* USER CODE BEGIN USART1_MspDeInit 1 */
|
||
|
||
/* USER CODE END USART1_MspDeInit 1 */
|
||
}
|
||
else if(uartHandle->Instance==USART2)
|
||
{
|
||
/* USER CODE BEGIN USART2_MspDeInit 0 */
|
||
|
||
/* USER CODE END USART2_MspDeInit 0 */
|
||
/* Peripheral clock disable */
|
||
__HAL_RCC_USART2_CLK_DISABLE();
|
||
|
||
/**USART2 GPIO Configuration
|
||
PD5 ------> USART2_TX
|
||
PD6 ------> USART2_RX
|
||
*/
|
||
HAL_GPIO_DeInit(GPIOD, ST_TX3_Pin|ST_RX3_Pin);
|
||
|
||
/* USART2 interrupt Deinit */
|
||
HAL_NVIC_DisableIRQ(USART2_IRQn);
|
||
/* USER CODE BEGIN USART2_MspDeInit 1 */
|
||
|
||
/* USER CODE END USART2_MspDeInit 1 */
|
||
}
|
||
else if(uartHandle->Instance==USART3)
|
||
{
|
||
/* USER CODE BEGIN USART3_MspDeInit 0 */
|
||
|
||
/* USER CODE END USART3_MspDeInit 0 */
|
||
/* Peripheral clock disable */
|
||
__HAL_RCC_USART3_CLK_DISABLE();
|
||
|
||
/**USART3 GPIO Configuration
|
||
PB10 ------> USART3_TX
|
||
PB11 ------> USART3_RX
|
||
*/
|
||
HAL_GPIO_DeInit(GPIOB, ST_TX2_Pin|ST_RX2_Pin);
|
||
|
||
/* USART3 interrupt Deinit */
|
||
HAL_NVIC_DisableIRQ(USART3_IRQn);
|
||
/* USER CODE BEGIN USART3_MspDeInit 1 */
|
||
|
||
/* USER CODE END USART3_MspDeInit 1 */
|
||
}
|
||
}
|
||
|
||
/* USER CODE BEGIN 1 */
|
||
|
||
/* USER CODE END 1 */
|
||
|