multiprocessor mode using USART in STM32F303VC at 312500 baud rate

[Rkuma.1964]

hi stm,

i am using multiprocessor communication uart mode in STM32F303VC. i am not able to communicate UART2 at 312500 baud rate. i am using external oscillator of 10 MHz . please suggest what should be the clock setting for that.

thanks,

roushan

[Rkuma.1964]

prev image is working and it is properly terminated.

i can able to see the correct reply .

roushan

[RMcCa]

RS485 can be tricky. Are you using properly shielded twisted pair cable? The termination is definitely wrong.

Also, have you considered that RS485 or the processor you are using isn't really up to the task?

If it works at a slower baud rate there is probably something else wrong, altho HAL is most certainty not helping.​