UART Half Duplex: How to get DMA working for both RX and TX on STM32F303CC?
I am using UART1 in half duplex mode and DMA works for TX, but I cannot get it to work for RX (after calling HAL_HalfDuplex_EnableReceiver). Here is my initialization code: __HAL_RCC_GPIOA_CLK_ENABLE(); m_GPIO_InitStructTX.Pin = GPIO_PIN_9; ...