[avr-gcc-list] ATMega16 #include trouble?

[Heiko Engelke]

Hallo,

I'm a beginner with Atmel processors, still trying to get some simple 
programs running. But I keep getting some very strange errors with very 
basic things that I just don't understand. I am using avr-libc in 
version 1.0.2 (Included in the binary Mac package from [1]).

Here's the first problem: My ATMega16 is not a valid MMCU, avr-gcc 
says. avr-libc seems to support it, so I think atmega16 should exist 
:-(

        $  avr-gcc  -mmcu=atmega16  foo.c
        Unknown MCU `atmega16' specified
        ...

Now that I'm using atmega161 as a workaround, some defines do not 
exist. There is no #define for UBRRL, while UBRRH exists. Strange ... 
is this normal? What do I need to do to avoid this problem?

        $  avr-gcc  -mmcu=atmega161  foo.c
        foo.c: In function `main':
        foo.c:5: `UBRRL' undeclared (first use in this function)
        ...

        $ cat foo.c
        #include <io.h>
        #define BAUD 42 // still to do
        int main() {
                outp((unsigned char)(BAUD>>8), UBRRH);
                outp((unsigned char)BAUD, UBRRL);
        }



[1] http://www.eecs.berkeley.edu/~mseeman/resources/macmicro.html
--
regards
Heiko


--
Grüße,
Heiko