F411 USART LL Driver Not Work Well
I have made my own PCB board with F411 MCU.The USART2 does not work well if I use LL driver.This is the init code generated by CubeIDE.static void MX_USART2_UART_Init(void) { /* USER CODE BEGIN USART2_Init 0 */ /* USER CODE END USART2_Init 0 ...