About Smark

Smark · 2024-10-11

Hello,I am implementing the use of the DMA for receiving data from the UART on a board with an STM32G491 that is constantly receiving data at 19200 baud.The DMA is configured in normal mode, and the receive buffer is currently of 50 bytes.Each time t...

Smark · 2024-10-21

Thank you for your quick response.It is returning HAL_BUSY. I has been checking if NOT HAL_OK since I detected the loss of data frames and I didn´t know what was happening. As I am debugging I know that always it entries in the NOT HAL_OK condition i...

Smark · 2024-10-21

Now I am doing this to debug the errors Variable errorDMA_UART4 has the value HAL_BUSYIn the function HAL_UART_Receive_DMA it entries into the conditional sentence: if (huart->RxState == HAL_UART_STATE_READY)and it seems it returns HAL_BUSY in...

Smark · 2024-10-16

Hi Guenael,For now the UART is not configured in circular mode, although I don't know if this is the best option for the application I am developing.The question is that I can not understand why the UART Handle Rx state is not reset and sometimes I g...

User statistics

User Activity

STM32 problem with UART RX throught DMA

Re: STM32 problem with UART RX throught DMA

Re: STM32 problem with UART RX throught DMA

Re: STM32 problem with UART RX throught DMA