RealTerm Not Showing Output from Nucleo N657X0Q Board

[Aqsa]

Currently, I am using the Nucleo N657X0Q board, and I am facing an issue with getting my machine learning model output on RealTerm. I am unable to see any output. Does anyone know how to resolve this issue?

[Andrew Neil]

Have you done any basic connectivity tests; eg, confirmed that you can just send "Hello, World" and see it on the terminal?

If not, then do that first!

• Start with simple direct blocking UART output using  HAL_UART_Transmit():
  https://community.st.com/t5/stm32-mcus/how-to-redirect-the-printf-function-to-a-uart-for-debug-messages/tac-p/733969/highlight/true#M1096
  Don't add any other complications (printf, etc) before you've got this working.
• Check that you are using the correct UART pins - the ones physically connected to the ST-Link's VCP
  (this is the most common reason for VCP comms not working!)
• Check that you have the correct COM port selected in your terminal app
• Check your RealTerm configuration - does it work with any other boards?
  Have you tried other serial terminals?
• Use an oscilloscope and/or logic analyser to confirm what's actually happening on the wires.

Some general tips on Debugging Serial Comms.

[KDJEM.1]

Hello @Aqsa ,

I advise you to look at this Solved: Re: STM32 N6 UART - STMicroelectronics Community  and check all recommendation shared.

Thank you.

Kaouthar