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original in en Guido Socher

en to zh SunDay 

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����GNU C���Կ�����������Ҫ��������:

mkdir /usr/local/atmel

������װ:GNU binutils

bunzip2 -c binutils-2.11.2.tar.bz2 | tar xvf -
cd binutils-2.11.2
./configure --target=avr --prefix=/usr/local/atmel
make
make install

������װ:AVR GCC������

tar zxvf gcc-core-3.0.3.tar.gz
cd gcc-core-3.0.3
./configure --target=avr --prefix=/usr/local/atmel --disable-nls --enable-language=c
make
make install

������װ:AVR C���Կ�

����һЩ��������(bash�﷨):
export CC=avr-gcc
export AS=avr-as
export AR=avr-ar
export RANLIB=avr-ranlib
export PATH=/usr/local/atmel/bin:${PATH}

./configure --prefix=/usr/local/atmel/avr --target=avr --enable-languages=c --host=avr
make
make install

������װ:�����

tar zxvf uisp-20011025.tar.gz
cd uisp-20011025/src
make
cp uisp /usr/local/atmel/bin

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	1 x AT90S4433, Atmel 8 λAVR RISC������.
	2 x 14�� IC��� ���� 1 x 28 �� 7.5mm IC��� ����28�Ų��Ҫ�ҵ��е������,ͨ��28�Ų����14mm����,����������Ҫ����7.5mm�IJ��.
	1 x 10K ���� (��ɫ����: ��,��,��) 3 x 470 ŷķ ����(��ɫ����:��,��,��) 1 x 1K ���� (��ɫ����: ��,��,��) 1 x 220 ŷķ ���� (��ɫ����:��,��,��) 1 x 4Mhz ���� 2 x 27pf �յ���
	���ڱ����������������5�Ų�ͷ/����.����ͨ����Щ��������,Ȼ��5���۳�һ��.
	������.
	1 x DB25 ������ ���ڲ嵽����.
	1 x LED
	һ��ģ���. ���������ﲻ��,�������������������AVRʵ�����Ƿ������õ�.�ҽ������΢�������뾧��͵��ݼ����ھ�������,Ȼ��ͨ���̵��°����ǵ�����/��������ӵ�ģ���.

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void main(void)
{
      /* enable PD5 as output */
      sbi(DDRD,PD5);
      while (1) {
            /* led on, pin=0 */
            cbi(PORTD,PD5);
            delay_ms(500);
            /* set output to 5V, LED off */
            sbi(PORTD,PD5);
            delay_ms(500);
      }
}

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export PATH=/usr/local/atmel/bin:${PATH} (for bash)
setenv PATH /usr/local/atmel/bin:${PATH} (for tcsh)

# /sbin/lsmod
parport_pc
ppdev
parport

modeprobe parport
modeprobe parport_pc
modeprobe ppdev

chmod 666 /dev/parport0

һЩ��Ȥ��binutils

avr-objdump -h avrledtest.out

avrledtest.out:     file format elf32-avr

Sections:
Idx Name          Size      VMA       LMA       File off  Algn
  0 .text         0000008c  00000000  00000000  00000094  2**0
                  CONTENTS, ALLOC, LOAD, READONLY, CODE
  1 .data         00000000  00800060  0000008c  00000120  2**0
                  CONTENTS, ALLOC, LOAD, DATA
  2 .bss          00000000  00800060  0000008c  00000120  2**0
                  ALLOC
  3 .eeprom       00000000  00810000  00810000  00000120  2**0
                  CONTENTS
  4 .stab         00000750  00000000  00000000  00000120  2**2
                  CONTENTS, READONLY, DEBUGGING
  5 .stabstr      000005f4  00000000  00000000  00000870  2**0
                  CONTENTS, READONLY, DEBUGGING

avr-size avrledtest.out

   text    data     bss     dec     hex filename
    140       0       0     140      8c avrledtest.out

avr-objdump -S avrledtest.out

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• Libc and uisp: /www.amelek.gda.pl/avr/libc/
• GCC and binutils: ftp://gatekeeper.dec.com/pub/GNU/
• avrfreaks (watch out some people on that site are still using windows !?): http://www.avrfreaks.net/
• the tavrasm assembler for Linux: www.tavrasm.org
• AVR webring: R.webring.com/hub?ring=avr&list
• Pre-compiled versions of gcc: combio.de/avr/
• All software and documents mentioned in this article
• The atmel website: www.atmel.com/