Download hex files to SCM on SC720/SC126

[Gordon Wainwright]

I use the Serial 2 terminal app to connect to my SC720 and SC126 SBCs.
Serial 2 is a native Apple macOS app.
However, my attempts to download a hex file, as I can do with TeraTerm running on a virtual Windows 11 OS, only locked up SCM. This required a reset, thus losing the hex file download, assuming it had downloaded.

Is there a macOS user out there using Serial 2?

Are you able to download hex files to your SCM hardware using Serial 2?

 How have you configured it?

Gordon

[Michael Dadswell]

Hi Gordon,

I can do this with the terminal settings 115200,8,N,1 and with no flow control selected.  Select the Binary (Raw) Transfer Protocol when Serial 2 prompts for it. 

This works with a 4k hex file, I’ve not tested it with bigger files.

I normally run Serial 2 with RTS/CTS selected when working with CPM, and that works with xmodem, but with SCM you are just sending text as if it were input from the keyboard.

I hope this helps.

Mike 

 

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[Steve Cousins]

Michael's advice sounds good to me.

I can confirm that SCM is easily fast enough to not need any form of flow control when downloading hex files.

It is also worth noting that a reset does not clear the program memory so you shouldn't lose anything that has been downloaded. Only SCM's workspace is changed by a reset.

Steve

[Gordon Wainwright]

Mike

Thanks for your rf/b.

Selecting the Binary (Raw) transfer protocol, as you advised, solved my problem.

Regards

Gordon

On Wednesday 29 May 2024 at 18:38:12 UTC+1 Michael Dadswell wrote: