Hola Hernando,
avr-gcc con AVRLIB me funciona en fedora-12:
gcc version 4.4.3 20100127 (Red Hat 4.4.3-4) (GCC)
blueberry> avr-gcc -v
Using built-in specs.
Target: avr
Configured with: ../gcc-4.4.2/configure --prefix=/usr
--mandir=/usr/share/man --infodir=/usr/share/info --target=avr
--enable-languages=c,c++ --disable-nls --disable-libssp
--with-system-zlib --enable-version-specific-runtime-libs
Thread model: single
gcc version 4.4.2 (GCC)
Con mis makefiles y al compilar el 'Hello World' de Wiring/avr-gcc
blueberry> make
avr-gcc -c -g -Os -Wall -Wstrict-prototypes -I/home/juanig/avrlib
-Wa,-ahlms=blink.lst -mmcu=atmega128 -I. blink.c -o blink.o
avr-gcc -c -g -Os -Wall -Wstrict-prototypes -I/home/juanig/avrlib
-Wa,-ahlms=/home/juanig/avrlib/timer.lst -mmcu=atmega128
-I. /home/juanig/avrlib/timer.c -o /home/juanig/avrlib/timer.o
In file included from /home/juanig/avrlib/timer.c:20:
/usr/lib/gcc/avr/4.4.2/../../../../avr/include/avr/signal.h:36:2:
warning: #warning "This header file is obsolete. Use
<avr/interrupt.h>."
avr-gcc /home/juanig/avrlib/timer.o blink.o -Wl,-Map=blink.map,--cref
-mmcu=atmega128 -o blink.elf
avr-objcopy -O ihex -R .eeprom blink.elf blink.hex
avr-objcopy -j .eeprom --set-section-flags=.eeprom="alloc,load"
--change-section-lma .eeprom=0 -O ihex blink.elf blink.eep
avr-objcopy: --change-section-lma .eeprom=0x00000000 never used
avr-size blink.elf
text data bss dec hex filename
2196 0 28 2224 8b0 blink.elf
Errors: none
avr-objdump -S blink.elf > blink.ss
rm /home/juanig/avrlib/timer.o
blueberry>
Por si acaso el programita de blink es:
//------------------------------------------------------
//------------------------------------------------------
//
// AVRLIB-DEMO
// For avrlib and Wiring development board.
//
//
// File: blink.c
// Author: Juan Reyes juanig-at-ccrma-stanford_edu
// Date: June 18, 2008
//
// Notes:
//-----------------------------------------------------
// USING THE WIRING DEVELOPMENT BOARD, BUILT-IN LED
// IN PIN 48 PORT D SHOULD LIGHT.
//
//-----------------------------------------------------
// Layout of ports in Wiring board correspond with
// ATMega128 as follows:
//
// ATMega128 WIRING
// ========= ======
//
// PORTD PORT-0
// PORTC PORT-1
// PORTA PORT-2
// PORTB PORT-3
// PORTE PORT-4
// PORTF PORT-5
// PORTG PORT-6
//-----------------------------------------------------
// Layout of pins in Wiring board correspond with
// ATMega128 as follows:
//
// px0 WPIN0
// px1 WPIN1
// . .
// px7 WPIN7
//
// Where x = {a,b,...,g}
//
//-----------------------------------------------------
// More information about Wiring board:
//
// http://wiring.org.co/hardware/index.html
//
//-----------------------------------------------------
// Information about functions used here and avrlib:
//
// ~/avrlib/examples/basic_io/basiciotest.c
//
//
//
//*********************************************************
// Description:
// ============
//
// This program will cause Built-in LED to blink on/off
// every 500ms.
//
//*********************************************************
//compiler includes
#include <avr/io.h>
#include <avr/interrupt.h>
//avrlib includes
#include "global.h"
#include "timer.h"
int main(void)
{
// outb(register,byte) is a function that writes
// a byte to a register.
// The DDRG register sets the direction of Port G.
// PORTG is labeled PORT6 on the Wiring Board.
// a '1' makes the corresponding pin an OUTPUT.
// a '0' makes the corresponding pin an INPUT.
// Ports can only be set as INPUT or OUTPUT (0x00, 0xff).
// 0xFF is hexadecimal for binary 11111111.
// Therefore using ´outb'. all pins of PORTG
// are set to OUTPUT as follows:
//
outb(DDRG, 0xFF);
//
// Gnome calculator in Fedora can do bin-to-hex conversion.
// The PORTG register can set the physical pins on port G high
// or low when those pins are set to be outputs using DDRG.
// When pins are set to input, the PORTG register does something
// else that will be discussed later.
// To turn off the LEDs we want to pull the end connected to
// port A high (to 5V) so that there will be no voltage drop
across
// the LEDs. See the schematic.
// So we "set" the low 4 bits HIGH (to 5V) of PORTG by writing
1's.
// Remember 0xF0 is hexadecimal for binary 11110000
outb(PORTG, 0xF0);
// initialize the timer library
timerInit();
//loop forever
while (1) {
//clear bit PG0 in the PORTG register - turn LED on
cbi(PORTG,PG0);
//PORTG = 0xFF;
// pause for 500ms
timerPause(500);
//set bit PG0 in the PORTG register - turn LED off
sbi(PORTG,PG0);
// PORTG = 0x00;
//pause for 500ms
timerPause(500);
}
return 0;
}
//------------------------------------------------------
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