main.c

来自「基于AVR单片机的ADC0808模数转换程序.」· C语言 代码 · 共 45 行

//ICC-AVR application builder : 2007-8-31 下午 06:40:58
// Target : M8
// Crystal: 4.0000Mhz

#include <iom8v.h>
#include <macros.h>
#include "0809.h"
#include "SPIshow.h"
void port_init(void)
{
 PORTB = 0x00;
 DDRB  = 0xff;
 PORTC = 0x00; //m103 output only
 DDRC  = 0x00;
 PORTD = 0xff;
 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();
 spi_init();
 
 MCUCR = 0x00;
 GICR  = 0x00;
 TIMSK = 0x00; //timer interrupt sources
 SEI(); //re-enable interrupts
 //all peripherals are now initialized
}

void main(void)
{
 unsigned long su;
 init_devices();
 while(1)
 {
  su=ADC0909(0);
  process(su,data);
  display(data);
  delayms(100);
  }
 }