stm32h7xx_hal_uart.c is missing a prompt to enable usart interrupt in the DMA configuration instructions.Other comments have this sentence:(+++) Configure the USARTx interrupt priority and enable the NVIC USART IRQ handle(used for last byte sending c...
I have used software control GPIO simulate parallel interface to successfully receive data, but how to faster, I used timer to trigger DMA, but the effect is very bad.stm32f1_ov2640_tim_dma_uart About: 1-1.5 FPS