How to feed New Line ('\n') from my Nucleo-F44rZE board to PC terminal?

[TH.16.336]

Hello All,

I am using Nucleo-F44rZE board. From my nucleo board, I want to send a new line char to my terminal which actually has to fee a line in terminal when it recieves it.

I have the following code, which actually prints 0A in my terminal instead of feeding a new line.

uint8_t nl = 0x0A; // ascii value for new line feed

HAL_UART_Transmit(&huart5, &nl, 1, 100); // Go to the next line

Please help to understand this behavior and find the solution for this.

[Uwe Bonnes]

Is your terminal printing in hex and not interpreting the ascii meaning of a character?

[Guenael Cadier]

Your question makes sense, in my view.

@TH.16.336​ What happens if you send other data values (0x31 => "1" or 0x42 => "B") ?

[Tesla DeLorean]

What Terminal application, in what mode?

Try different terminal software. Some will show CR LF info

Things like RealTerm have an ASCII, ANSI and HEX mode

[Andrew Neil]

As already asked, what "terminal" are you using?

What happens if you connect two instances of that terminal together (via a "null modem") ?

If you get the same behaviour (LF printing as "0A" instead of doing a line-feed) with that - then it's clearly an issue with your terminal, not the Nucleo!

Note that LF = Line Feed, and CR = Carriage Return - you may need both to get a new line ...

[TH.16.336]

Hi Bonnes,

Yes it was printing in hex. when I switched to ASCII mode, the issue resolved. It was feeding the new line.

Thanks for the reply.

[TH.16.336]

Yes it was printing in hex. I am using real term.

when I switched to ASCII mode, the issue resolved. It was feeding the new line.

Thanks for the reply.

[TH.16.336]

Yes it was printing in hex. I am using real term.

when I switched to ASCII mode, the issue resolved. It was feeding the new line.

Thanks for the reply.

[TH.16.336]

As informed, it's working in ASCII mode.

But the terminal evening printing the ASCII char of that value like LF or CR and then feeding a new line.

Is there any way to avoid printing it on terminal and just feed new line?

[Andrew Neil]

So this is a terminal configuration issue - nothing to do with the STM32 or Nucleo.

You need to correctly configure the terminal - RTFM for details.