Re: [Amforth-devel] Help getting started with a atmeg644PA

[Matthias T. <mt...@we...>]

Hi Leon,


> C:\Users\Leon\Desktop\amforth-4.0\core\drivers/usart.asm(2): warning:
> Use of undefined or forward referenced symbol 'UBRRL' in .equ/.set

etc. That means that your controller uses a different naming scheme
for the usart ports. Looking at the part description files: they are
names UBBR0L, UBRR1L etc. You will have to use the drivers/usart_0.asm
instead (or whatever your terminal is).

> After getting this to assemble, the next problem is getting it on a
> device. As I said, I'd like to use a atmega644PA, but I only see
> atmega644 and atmega644P in the devices directory. Can I use one of
> them, and if so, which one?

None of them by default. You have to generate the proper files with
the pd2amforth utility from the original Atmel Partdescription file.
I've never tested it on windows however, it's a non-trivial perl
script.

You may have success with the 644 hex files, I do not know whether
the controllers are similiar enough..

Matthias