Code Get Stuck

[arun rajajinagar]

Hi,

I am using STM32L072 LoRa discovery kit and enabled UART with DMA. Some times my code gets stuck in HAL_UART_Receive_DMA( ....) function at the line 

SET_BIT(huart->Instance->CR3, USART_CR3_EIE);

This is called at the begining of the code. It wont recover at all until i reset the MCU for some number of times.

Kindly let me know how shall I resolve this issue.

[Tesla DeLorean]

Make sure you check and clear any noise or framing errors, etc that might be stopping the receiver from collection additional data.

Implement a timeout/recovery so it doesn't get stuck indefinitely. You'll likely need to debug/diagnose your own system.

[MSipo]

See my reply in https://community.st.com/t5/stm32-mcus-wireless/code-get-stuck-at/m-p/593433/highlight/true#M16515