I have tried simple code
* USER CODE BEGIN 0 */
uint8_t myTx[13] ="hello world\r\n";;
uint8_t myRx[13] ="hello world\r\n";
main();
* USER CODE BEGIN 2 */
HAL_UART_Receive_DMA(&huart2, myRx,13);
while()
{
//nothing here
{
/* USER CODE BEGIN 4 */
void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
{
UNUSED(huart);
HAL_UART_Transmit(&huart2, myTx, 13, 10);
}
/* USER CODE END 4 */
but it can transmit if I put the code in while() loop
I do have setup DMA (circular) and global interrupt in Cube MX
I TRIED THE SAME CODE ON STM32f446RE it works fine . I am using RealTerm as serial monitor which works fine on other boards.
also when I setup clock in CUbe MX for STM32L416KBU6 50 Mhz I get in keil
RCC_OscInitStruct.PLL.PLLN = 25;
shouldn't I have
RCC_OscInitStruct.PLL.PLLN = 50;
it is always half the value
