m8.c

AVR单片机控制码盘程序

//ICC-AVR application builder : 2006-1-11 11:59:42
// Target : M8
// Crystal: 8.0000Mhz

#include <iom8v.h>
#include <macros.h>

void port_init(void)
{
 PORTB = 0x00;
 DDRB  = 0x00;
 PORTC = 0x00; //m103 output only
 DDRC  = 0x00;
 PORTD = 0x00;
 DDRD  = 0x00;
}

//call this routine to initialize all peripherals
void init_devices(void)
{
 //stop errant interrupts until set up
 CLI(); //disable all interrupts
 port_init();

 MCUCR = 0x00;
 GICR  = 0x00;
 TIMSK = 0x00; //timer interrupt sources
 SEI(); //re-enable interrupts
 //all peripherals are now initialized
}

//
void main(void)
{
 init_devices();
 //insert your functional code here...
 DDRB |=BIT(1);
 PORTB &=~BIT(1);
 DDRC |=BIT(3);
 PORTC &=~BIT(3);
 DDRC |=BIT(1);
 PORTC &=~BIT(1);
}