I have this code that initiates my UART channels with DMA at startup: if( HAL_OK == HAL_UART_RegisterRxEventCallback( m_configuration.huart, callbackRx )) {   if( HAL_OK == HAL_UART_RegisterCallback( m_configuration.huart, HAL_UART_TX_COMPLETE_CB_I...

Hi, I'm using STM32H7 nucleo board and I have written a simple UDP client that receives a message and loops it back. I was using the LwIP Socket API for this (lwip_sendto) and using Wireshark I can see that packets are coming out of the board, but th...

Hi,I have written an STM32 program that transmits data using HAL_UART_Transmit_DMA .However, for some reason, the first time I call this HAL function, Rx line only outputs 0s.The second message I'm sending actually sends the first message,The third m...