Welche Einstelling Com Port beim flashen FSbus

[PA7RM]

> the error code "read after write check failed" could be caused by
> different things:
>
> 1.) check that the levels at the test points are correct
> (use the test button )

I've done that. I only have a steady +5V on pin 12 or 13. Not a rechteckspannung. At least i hope how to work with a scoop.

I'm using a MAX232N not the CPE Could that be the differance. ?
O... I'm getting Crazy. Oké I'm getting further with the project.