Re: [avr-gcc-list] Programming ATMega2560

[Andreas Höschler]

Hi Tom,

#define F_CPU 16000000UL  /* 16 MHz CPU clock */
#include <avr/io.h>
#include <util/delay.h>
#define OUTPUTPORT PORTB
#define OUTPUTPIN PB7
int main (void) {
 DDRB = 0xff;          // all outputs
 while (1)                       /* loop forever */
       {
     if ((PORTB & _BV(PB7)) > 0) PORTB &= ~_BV(PB7);
     else PORTB |= _BV(PB7);
     _delay_ms(500);
       }
 return (0);
}


> avr-gcc -mmcu=atmega2560 -Wall -O2 -I /usr/lib/avr/include/ main.c

I get this

-bash-3.2$  avr-gcc -mmcu=atmega2560 -Wall -O2 -I /usr/lib/avr/include/ main.c

unknown MCU 'atmega2560' specified

Known MCU names:

   avr2

   at90s2313

   at90s2323

   at90s2333

   at90s2343

   attiny22

   attiny26

   at90s4414

   at90s4433

   at90s4434

   at90s8515

   at90c8534

   at90s8535

   avr25

   attiny13

   attiny2313

   attiny24

   attiny44

   attiny84

   attiny25

   attiny45

   attiny85

   attiny261

   attiny461

   attiny861

   attiny43u

   attiny48

   attiny88

   at86rf401

   avr3

   at43usb320

   at43usb355

   at76c711

   avr31

   atmega103

   avr35

   at90usb82

   at90usb162

   avr4

   atmega8

   atmega48

   atmega48p

   atmega88

   atmega88p

   atmega8515

   atmega8535

   atmega8hva

   at90pwm1

   at90pwm2

   at90pwm2b

   at90pwm3

   at90pwm3b

   avr5

   atmega16

   atmega161

   atmega162

   atmega163

   atmega164p

   atmega165

   atmega165p

   atmega168

   atmega168p

   atmega169

   atmega169p

   atmega32

   atmega323

   atmega324p

   atmega325

   atmega325p

   atmega3250

   atmega3250p

   atmega328p

   atmega329

   atmega329p

   atmega3290

   atmega3290p

   atmega32hvb

   atmega406

   atmega64

   atmega640

   atmega644

   atmega644p

   atmega645

   atmega6450

   atmega649

   atmega6490

   atmega16hva

   at90can32

   at90can64

   at90pwm216

   at90pwm316

   at90usb646

   at90usb647

   at94k

   avr51

   atmega128

   atmega1280

   atmega1281

   atmega1284p

   at90can128

   at90usb1286

   at90usb1287

   avr1

   at90s1200

   attiny11

   attiny12

   attiny15

   attiny28

main.c:1: error: MCU 'atmega2560' supported for assembler only

In file included from main.c:4:

/usr/local/avr/lib/gcc/avr/4.3.3/../../../../avr/include/avr/io.h:530:6: warning: #warning "device type not defined"

main.c: In function 'toggleOutput':

main.c:19: error: 'PORTB' undeclared (first use in this function)

main.c:19: error: (Each undeclared identifier is reported only once

main.c:19: error: for each function it appears in.)

main.c:19: error: 'PB7' undeclared (first use in this function)

main.c: In function 'main':

main.c:34: error: 'DDRB' undeclared (first use in this function)

main.c:45: error: 'PORTB' undeclared (first use in this function)

main.c:45: error: 'PB7' undeclared (first use in this function)

Have you looked at my tool chain setup receipt (see below)? May be I need another version of one of the ingredients!?? What components contains the chip infos? Is this in avr-libc? I use v1.8.1. Which version do you have?

Thanks a lot,

 Andreas

********************************************************************************************************
We download http://ftp.gnu.org/gnu/binutils/binutils-2.24.tar.gz:

PREFIX=/usr/local/avr
export PREFIX
PATH=$PATH:$PREFIX/bin
export PATH

cd /usr/src
mkdir avr
cd avr
scp address@hidden:/home/ahoesch/Downloads/binutils-2.24.tar.gz .
gunzip binutils-2.24.tar.gz
gtar xvf binutils-2.24.tar
cd binutils-2.24
./configure --target=avr --program-prefix="avr-" --prefix=$PREFIX
make
make install

We download http://gcc.cybermirror.org/releases/gcc-4.3.3/gcc-4.3.3.tar.bz2:

cd /usr/src/
gtar xvf mpfr-2.4.0.tar
cd mpfr-2.4.0
./configure
make
make install

cd /usr/src/avr
mkdir avrgcc
scp address@hidden:/home/ahoesch/Downloads/gcc-4.3.3.tar.bz2 .
bunzip2 gcc-4.3.3.tar.bz2
gtar xvf gcc-4.3.3.tar
cd avrgcc
../gcc-4.3.3/configure --target=avr --prefix=/usr/local/avr --enable-languages=c --disable-libssp --disable-shared --disable-libada --disable-libssp --disable-nls --with-dwarf2 --with-gmp=/usr/local --with-mpfr=/usr/local --prefix=/usr/local/avr
make 
make install 

pico /etc/default/login
pico /etc/default/su

PATH= ...:/usr/local/avr/bin
SUPATH= ...:/usr/local/avr/bin

Relogin to get the new PATH value.

which avr-gcc

We download http://download.savannah.gnu.org/releases/avr-libc/avr-libc-1.8.1.tar.bz2:

cd /usr/src/avr
scp address@hidden:/home/ahoesch/Downloads/avr-libc-1.8.1.tar.bz2 .
bunzip2 avr-libc-1.8.1.tar.bz2
gtar xvf avr-libc-1.8.1.tar
cd avr-libc-1.8.1
./configure --host=avr --prefix=/usr/local/avr
make
make install


We sync avrdude-5.8 and arduino.sh from the 192.168.1.2 

rsync -avz -e ssh arduino.sh avrdude-5.8 address@hidden:/usr/src/avr

and build as follows:

LIBUSB=/usr/sfw
export CPPFLAGS="-I${LIBUSB}/include"
export LDFLAGS="-L${LIBUSB}/lib"
make 
make install

This installs

/usr/local/bin/avrdude
/usr/local/etc/avrdude.conf

We can now do 

avrdude -c avrispmkII -P usb -p atmega8
...