gd32f450 uart6例程
时间: 2024-10-13 16:01:00 浏览: 60
GD32F450系列是一款基于Arm Cortex-M4微控制器的STM32产品,它内置了UART(通用异步收发器)功能,包括USART6。USART6是一个全双工串行通信接口,常用于设备间的简单数据传输。下面是一个基本的UART6初始化和发送接收数据的示例:
```c
#include "stm32f4xx_hal.h"
// 初始化UART6
void UART6_Init(void) {
GPIO_InitTypeDef GPIO_InitStruct;
// 配置TX/RX引脚
GPIO_InitStruct.Pin = USART6_TX | USART6_RX;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
GPIO_InitStruct.Alternate = GPIO_AF7_USART6; // 根据实际情况选择正确的GPIO AF
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
// 配置USART6
USART_HandleTypeDef UsartHandle;
UsartHandle.Instance = USART6;
UsartHandle.Init.BaudRate = 9600; // 设置波特率
UsartHandle.Init.WordLength = USART_WORD_LENGTH_8B;
UsartHandle.Init.StopBits = USART_STOPBITS_1;
UsartHandle.Init.Parity = USART_PARITY_NONE;
UsartHandle.Init.HardwareFlowControl = USART_HF_NONE;
UsartHandle.Init.Mode = USART_MODE_NORMAL;
if (HAL_UART_Init(&UsartHandle) != HAL_OK) {
// 处理初始化失败
while (1);
}
}
// 发送数据
void UART6_SendData(char data) {
HAL_UART_Transmit(&UsartHandle, (uint8_t*)&data, sizeof(data), HAL_MAX_DELAY);
}
// 接收数据
char UART6_ReceiveData(void) {
uint8_t received_data = 0;
HAL_UART_Receive(&UsartHandle, (uint8_t*)&received_data, sizeof(received_data), HAL_MAX_DELAY);
return received_data;
}
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