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徐志伟 | ce6c7c63e5 |
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@ -1,3 +1,6 @@
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# HFUT-Git-Training
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# HFUT-Git-Training
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LTS test
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苍穹竞技机器人队 电控组 Git学习与训练仓库
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训练任务截止时间 2023.10.5
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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
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@ -0,0 +1,38 @@
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#include "bsp_usart.h"
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#include "main.h"
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extern UART_HandleTypeDef huart1;
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extern DMA_HandleTypeDef hdma_usart1_tx;
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void usart1_tx_dma_init(void)
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{
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//enable the DMA transfer for the receiver request
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//使能DMA串口接收
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SET_BIT(huart1.Instance->CR3, USART_CR3_DMAT);
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}
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void usart1_tx_dma_enable(uint8_t *data, uint16_t len)
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{
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//disable DMA
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//失效DMA
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__HAL_DMA_DISABLE(&hdma_usart1_tx);
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while(hdma_usart1_tx.Instance->CR & DMA_SxCR_EN)
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{
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__HAL_DMA_DISABLE(&hdma_usart1_tx);
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}
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//clear flag
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//清除标志位
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__HAL_DMA_CLEAR_FLAG(&hdma_usart1_tx, DMA_HISR_TCIF7);
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__HAL_DMA_CLEAR_FLAG(&hdma_usart1_tx, DMA_HISR_HTIF7);
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//set data address
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//设置数据地址
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hdma_usart1_tx.Instance->M0AR = (uint32_t)(data);
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//set data length
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//设置数据长度
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hdma_usart1_tx.Instance->NDTR = len;
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//enable DMA
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//使能DMA
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__HAL_DMA_ENABLE(&hdma_usart1_tx);
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}
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@ -4,5 +4,5 @@
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#include <iostream>
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#include <iostream>
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int main(){
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int main(){
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printf("hello git --lts");
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printf("hello git --sjq");
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}
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}
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