• 使用HAL库提供的接口函数HAL_UART_Transmit_DMA来发送数据,全速运行时串口助手接收的数据全是0x00的原因? 160 • STM32H7做的项目,使用HAL_DMA_Start_IT,但是DMA是以最快的速度传输,并不受定时器周期控制? 138 • 为什么STM32F401cdu用HAL_TIM_DMABurst_WriteStart无法输出PWM波形? 239 • 如何...
在HAL_PPP_Init() 函数中被调用,用来初始化底层相关的设备(GPIOs, clock, DMA, interrupt) 2.处理完成回调函数:HAL_PPP_ProcessCpltCallback*(Process指具体某种处理,如UART的Tx),例如:__weak void HAL_SPI_RxCpltCallback(SPI_HandleTypeDef *hspi)。当外设或者DMA工作完成后时,触发中断,该回调函数...
float pro=0; //显示传输进度 uart_init(115200); //定义串口波特率为115200 KEY_Init(); //初始化按键 LED_Init(); delay_init(); MYDMA_Config(DMA1_Channel4,(u32)&USART1->DR,(u32)SendBuff,SEND_BUF_SIZE);//DMA1配置初始化 j=sizeof(TEXT_TO_SEND); //求取要传输的字符串长度便于存入...
将ADC DMA中断的NVIC使能代码屏蔽即可解决。。。/** * Enable DMA controller clock */ static void ...
Got the same issue with a STM32F769, with DMA UART / I2C. Moving the MX_DMA_Init() before the ADC and the I2C init solved the issue... It seems to be an issue with the code generation from STM32CubeMX (last version, embedded in STM32CubeIDE). 0 Kudos Reply Amel NASRI ...
HAL_NVIC_EnableIRQ(DMA1_Channel7_IRQn);HAL_DMA_Start_IT(&hdma_usart2_tx, (uint32_t)msg, (uint32_t)&huart2.Instance->DR,strlen(msg));//Enable UART in DMA modehuart2.Instance->CR3 |= USART_CR3_DMAT;/* Infinite loop */while(1); ...