Solved
"HAL_UART_Transmit_DMA(...)" without HTIE (Half transfer interrupt enable)
Is there a HAL method that allows you to easily set a transmit DMA interrupt like "HAL_UART_Transmit_DMA(...)" but without setting the half transfer interrupt routine? Since the Tx buffer is full when this is enabled, I can expect the DMA to start transmitting right away, so I was wondering if there is a HAL method to disable the HTIE before starting the DMA.