I am using USART 1 and USART 2 of STM32L56VE series microcontroller in RS-485(Hardware flow control) in Async mode, I am using PA9(TX),PA10(RX),PA12(RTS),PD4(RTS),PD5(TX) and PD6(RX) pins. I have observed Transceiver is switched to send immediate at ...