Posted on March 02, 2015 at 13:36I can receive one byte over DMA, but then thats it. What is the correct way to use the DMA USART - its not obvious. I am using FreeRTOS.
Here is my code:
```
void task(void) {
status = HAL_UART_Receive_DMA(&huart1, (uint8_t *) aRxBuffer, RXBUFFERSIZE);
while (1) {
status = HAL_UART_Receive_DMA(&huart1, (uint8_t *) aRxBuffer, RXBUFFERSIZE);
}
}
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart) {
HAL_StatusTypeDef status;
uint8_t data;
osMessagePut(usartQueue, aRxBuffer[0], 0);
//status = HAL_UART_Receive_DMA(&huart1, (uint8_t *) aRxBuffer, RXBUFFERSIZE);
//if (status != 0) __BKPT(0);
}
```
Any ideas?
Thanks!
