【教程】Linux下燒寫AVR單片機，以ATMega16為例_AVR單片機吧

1樓巨大八爪鱼 2013-9-8 05:36

首先安裝：
sudo yum install gcc
sudo yum install avrdude
sudo yum install avr-gcc
sudo yum install binutils
sudo yum install avr-libc

我安裝的版本是：
Package gcc-4.8.1-1.fc19.x86_64 already installed and latest version
Package avrdude-5.11.1-4.fc19.x86_64 already installed and latest version
Package avr-gcc-4.7.3-0.1.fc19.x86_64 already installed and latest version
Package binutils-2.23.52.0.1-9.fc19.x86_64 already installed and latest version
Package avr-libc-1.8.0-5.fc19.noarch already installed and latest version

[octopus@pc3 ~]$ sudo yum install gcc
Loaded plugins: langpacks, refresh-packagekit
Package gcc-4.8.1-1.fc19.x86_64 already installed and latest version
Nothing to do
[octopus@pc3 ~]$ sudo yum install avrdude
Loaded plugins: langpacks, refresh-packagekit
Package avrdude-5.11.1-4.fc19.x86_64 already installed and latest version
Nothing to do
[octopus@pc3 ~]$ sudo yum install avr-gcc
Loaded plugins: langpacks, refresh-packagekit
Package avr-gcc-4.7.3-0.1.fc19.x86_64 already installed and latest version
Nothing to do
[octopus@pc3 ~]$ sudo yum install binutils
Loaded plugins: langpacks, refresh-packagekit
Package binutils-2.23.52.0.1-9.fc19.x86_64 already installed and latest version
Nothing to do
[octopus@pc3 ~]$ sudo yum install avr-libc
Loaded plugins: langpacks, refresh-packagekit
Package avr-libc-1.8.0-5.fc19.noarch already installed and latest version
Nothing to do
[octopus@pc3 ~]$

下面的程序引用的文件是avr/io.h，如果文件不存在就檢查一下avr-libc是否安裝好，我用的系統是fedora19

2樓巨大八爪鱼 2013-9-8 05:38

【示常式序】
【demo1.c】
#include <avr/io.h>

void main(void)
{
    unsigned char i,j,k=0;
    DDRB=PORTB=0xff;
    while (1)
    {
        PORTB=~PORTB;
        //if (PINB&BIT(0))
        //    PORTB&=~BIT(0);
        //else
        //    PORTB|=BIT(0);
        for (i=0;i<255;i++)
            for (j=0;j<255;j++)
                for (k=0;k<13;k++);
    }
}

該程序可以使PB口上的LED閃爍起來，時間大約是一秒（很不精確）。

3樓巨大八爪鱼 2013-9-8 05:39

【Makefile】
demo: demo1.c
    avr-gcc -mmcu=atmega16 -c demo1.c
    avr-gcc -mmcu=atmega16 -o demo1.elf demo1.o
    avr-objcopy -j .text -j .data -O ihex demo1.elf demo1.hex
    sudo avrdude -p m48 -c usbasp -e -U flash:w:demo1.hex -F

4樓巨大八爪鱼 2013-9-8 05:40

然後插上USBAsp下載器，輸入make就可以編譯並下載了哦

5樓巨大八爪鱼 2013-9-8 05:41

[octopus@pc3 t1]$ make
avr-gcc -mmcu=atmega16 -c demo1.c
avr-gcc -mmcu=atmega16 -o demo1.elf demo1.o
avr-objcopy -j .text -j .data -O ihex demo1.elf demo1.hex
sudo avrdude -p m48 -c usbasp -e -U flash:w:demo1.hex -F
[sudo] password for octopus:

avrdude: warning: cannot set sck period. please check for usbasp firmware update.
avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.01s

avrdude: Device signature = 0x1e9403
avrdude: Expected signature for ATMEGA48 is 1E 92 05
avrdude: erasing chip
avrdude: warning: cannot set sck period. please check for usbasp firmware update.
avrdude: reading input file "demo1.hex"
avrdude: input file demo1.hex auto detected as Intel Hex
avrdude: writing flash (212 bytes):

Writing | ################################################## | 100% 0.13s

avrdude: 212 bytes of flash written
avrdude: verifying flash memory against demo1.hex:
avrdude: load data flash data from input file demo1.hex:
avrdude: input file demo1.hex auto detected as Intel Hex
avrdude: input file demo1.hex contains 212 bytes
avrdude: reading on-chip flash data:

Reading | ################################################## | 100% 0.06s

avrdude: verifying ...
avrdude: 212 bytes of flash verified

avrdude: safemode: Fuses OK

avrdude done. Thank you.

[octopus@pc3 t1]$

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