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

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

Hi Leon,

> Could you be more specific about what worked for you?

What did I do? I took the amforth-4.0 files and added the Atmel files
from the studio to them. Than I created the device tree for the
atmega644pa with the pd2amforth utility and modified the template
application to use it. Than I used the Atmel assembler to generate the
hex files. All worked without any problem, even with my ubuntu linux
wine setup. I did not check whether amforth actually works, I do not
have the hardware...

I cannot reproduce your problem, that makes it really hard to solve
it.

> I never doubted that 
> there are microcontollers that work. I get the same message from the relevant 
> device.asm file with the 644 and 644p, so whatever my problem is, it's not 
> limited to the 644pa.
> 
> devices/atmega644{,p,pa}/device.asm(13): error: Overlap in .cseg: addr=0x1 
> conflicts with 0x0:0x2

This error message is of the not-so-useful type. I have no idea where it
comes from. Sorry.

log from the terminal follows (excuse the German phrases, I forgot to
set LANG properly..)

--------
mt@ayla:~/2/amforth-4.0/tools$ ./pd2amforth
ATmega644PA.xml

... copy the file to core/devices, chdir to appl/template ...

mt@ayla:~/2/amforth-4.0/appl/template$ make
wine ../../Atmel/avrasm2.exe -I ../../Atmel/Appnotes2 -I ../../core
-I ../../core/devices/atmega644pa -fI -v0 -e template.eep.hex -l
template.lst template.asm
mt@ayla:~/2/amforth-4.0/appl/template$ svn diff
Index: template.asm
===================================================================
--- template.asm (Revision 899)
+++ template.asm (Arbeitskopie)
@@ -17,10 +17,10 @@
.equ F_CPU = 8000000

; initial baud rate of terminal
-.include "drivers/usart.asm"
+.include "drivers/usart_0.asm"
.equ BAUD = 9600
-.equ USART_B_VALUE = (1<<TXEN) | (1<<RXEN) | (1<<RXCIE)
-.equ USART_C_VALUE = (3<<UCSZ0)
+.equ USART_B_VALUE = (1<<TXEN0) | (1<<RXEN0) | (1<<RXCIE0)
+.equ USART_C_VALUE = (3<<UCSZ00)


.equ HLDSIZE  = $10    ; 16 bit cellsize with binary representation
Index: makefile
===================================================================
--- makefile (Revision 899)
+++ makefile (Arbeitskopie)
@@ -17,7 +17,7 @@

# the MCU should be identical to the device
# setting in template.asm
-MCU=atmega16
+MCU=atmega644pa

# set the fuses according to your MCU
LFUSE=0xnn
mt@ayla:~/2/amforth-4.0/appl/template$ 
------------------

Matthias