piclist 2004\04\24\205754a >
Thread: Still having problems with WinAVR
face BY : Herbert Graf email (remove spam text)

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> > as: unrecognized option `-cu=atmega128'
> I think that the "as:" part is the assembler - check the following line in
> the makefile, especially the -mmcu part to make sure you didn't
> accidentally change it to -cu.
> ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
> As far as the warnings go, please paste the first 5 or ten lines
> of test.c into your next message, it appears your missing some
> function prototypes and it would be easier to
> see what is actually there.

       I'm actually now trying with the exact example that comes with the package
(after syntax corrections):

#include <avr/io.h>
#include <avr/delay.h>
int main (void)
       unsigned char counter;
       //set PORTB for output
       DDRB =0xFF;
       while (1)
               //set PORTB.2 high
               PORTB |=1<<2;
               //wait (10 *120000)cycles =wait 1200000 cycles
               counter =0;
               while (counter !=5)
                       //wait (30000 x 4)cycles =wait 120000 cycles
               //set PORTB.2 low
               PORTB &=~(1<<2);
               //wait (10 *120000)cycles =wait 1200000 cycles
               counter =0;
               while (counter !=5)
                       //wait (30000 x 4)cycles =wait 120000 cycles
       return 1;

And the result of 'make all':

Compiling: test1.c
avr-gcc -c -mmcu=atmega8535 -I. -g -Os -funsigned-char -funsigned-bitfields
-fpack-struct -fshort-enums -Wall -Wstrict-prototypes -Wa,-adhlns=test1.lst
-Ic:\winavr\avr\include -std=gnu99 -Wp,-M,-MP,-MT,test1.o,-MF,.dep/test1.o.d
test1.c -o test1.o
as: unrecognized option `-cu=atmega8535'
make.exe: *** [test1.o] Error 1

FWIW I've tried different processors all with similar errors (i.e. if I sub
atmega16 the error becomes -cu=atmega16)

I have checked that line in the makefile:

ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)

I've attached the complete makefile to this message (it's very small).

> I'm disappointed that you're having so many problems.  I'm working
> on a project for the circuit cellar contest and was going to
> mention how easily and quickly I was able to get winavr up and
> running (actually had zero problems - I know, just what you wanted to
> hear!).
> Ken

       Well I have no problem debugging problems that are mine. Debugging problems
that aren't mine generally aren't something I will do unless absolutely
necessary, and trying to debug defective software is about the lowest on my

       If it weren't for the circuit cellar contest I wouldn't have bothered to
try for this long.

       Thanks for your help. TTYL

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Subject (change) Still having problems with WinAVR

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