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LTS ... main

Author SHA1 Message Date
徐志伟 ce6c7c63e5 上传文件至 / 2023-10-08 21:19:29 +08:00
3 changed files with 44 additions and 3 deletions

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# HFUT-Git-Training # HFUT-Git-Training
LTS test 苍穹竞技机器人队 电控组 Git学习与训练仓库
训练任务截止时间 2023.10.5
每人至少创建一个分支 提交一个自己的源代码文件,修改一个别人的源代码文件

38
bsp_usart.c Normal file
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#include "bsp_usart.h"
#include "main.h"
extern UART_HandleTypeDef huart1;
extern DMA_HandleTypeDef hdma_usart1_tx;
void usart1_tx_dma_init(void)
{
//enable the DMA transfer for the receiver request
//使能DMA串口接收
SET_BIT(huart1.Instance->CR3, USART_CR3_DMAT);
}
void usart1_tx_dma_enable(uint8_t *data, uint16_t len)
{
//disable DMA
//失效DMA
__HAL_DMA_DISABLE(&hdma_usart1_tx);
while(hdma_usart1_tx.Instance->CR & DMA_SxCR_EN)
{
__HAL_DMA_DISABLE(&hdma_usart1_tx);
}
//clear flag
//清除标志位
__HAL_DMA_CLEAR_FLAG(&hdma_usart1_tx, DMA_HISR_TCIF7);
__HAL_DMA_CLEAR_FLAG(&hdma_usart1_tx, DMA_HISR_HTIF7);
//set data address
//设置数据地址
hdma_usart1_tx.Instance->M0AR = (uint32_t)(data);
//set data length
//设置数据长度
hdma_usart1_tx.Instance->NDTR = len;
//enable DMA
//使能DMA
__HAL_DMA_ENABLE(&hdma_usart1_tx);
}

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#include <iostream> #include <iostream>
int main(){ int main(){
printf("hello git --lts"); printf("hello git --sjq");
} }