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65 lines
1.6 KiB
65 lines
1.6 KiB
//
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// Created by iflyt on 2025/2/27.
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//
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#include "uart_dbg.h"
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#include "bsp.h"
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#include "main.h"
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UART_HandleTypeDef huart_dbg;
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// 初始化调试串口
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void DBG_UART_Init(void)
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{
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// 使能 GPIO 和 USART 时钟
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__HAL_RCC_GPIOA_CLK_ENABLE();
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__HAL_RCC_USART1_CLK_ENABLE();
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// 配置 GPIO 为复用功能
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GPIO_InitTypeDef GPIO_InitStruct = {0};
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GPIO_InitStruct.Pin = DBG_UART_TX_PIN | DBG_UART_RX_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 = DBG_UART_GPIO_AF;
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HAL_GPIO_Init(DBG_UART_GPIO_PORT, &GPIO_InitStruct);
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// 配置 USART
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huart_dbg.Instance = DBG_UART;
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huart_dbg.Init.BaudRate = DBG_UART_BAUDRATE;
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huart_dbg.Init.WordLength = UART_WORDLENGTH_8B;
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huart_dbg.Init.StopBits = UART_STOPBITS_1;
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huart_dbg.Init.Parity = UART_PARITY_NONE;
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huart_dbg.Init.Mode = UART_MODE_TX_RX;
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huart_dbg.Init.HwFlowCtl = UART_HWCONTROL_NONE;
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huart_dbg.Init.OverSampling = UART_OVERSAMPLING_16;
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if (HAL_UART_Init(&huart_dbg) != HAL_OK)
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{
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Error_Handler();
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}
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}
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#ifdef __cplusplus
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extern "C" {
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#endif
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// 重定向 write 函数，实现 printf 重映射
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__attribute__((used)) int _write(int file, char *ptr, int len)
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{
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#if 1
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HAL_UART_Transmit(&huart_dbg, (uint8_t *)ptr, len, HAL_MAX_DELAY);
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return len;
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#else
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int i;
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for (i = 0; i < len; i++) {
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uint8_t c = *ptr++;
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HAL_UART_Transmit(&huart_dbg, &c, 1, 100);
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}
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return len;
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#endif
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}
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#ifdef __cplusplus
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}
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#endif
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