main.c

用ICC编写的程序包括SPI

//ICC-AVR application builder : 2005-3-27 19:38:48
// Target : M16
// Crystal: 7.3728Mhz
#include <iom16v.h>
#include <macros.h>
#include "Cpld_Read.h"
#include "Display.h"


//#define DEBUG 	


//Global varible declare
//unsigned char TimeFlag=0;


void port_init(void)
{
 PORTA = 0xFF;
 DDRA  = 0x00;
 PORTB = 0xFF;
 DDRB  = 0x0F;
 PORTC = 0xFF; //m103 output only
 DDRC  = 0x00;
 PORTD = 0xFF;
 DDRD  = 0x00;
}

//TIMER0 initialisation - prescale:1
// WGM: Normal
// desired value: 200Hz
// actual value: Out of range
//void timer0_init(void)
//{
 //TCCR0 = 0x00; //stop
 //TCNT0 = 0x70 ; //set count
 //OCR0  = 0x00 ;  //set compare
 //TCCR0 = 0x01; //start timer
//}

/*#pragma interrupt_handler timer0_ovf_isr:10
void timer0_ovf_isr(void)
{
 TCNT0 = 0x70 ; //reload counter value
 TimeFlag=1;
}*/

//UART0 initialisation
// desired baud rate: 115200
// actual: baud rate:115200 (0.0%)
// char size: 8 bit
// parity: Disabled

void init_devices(void)
{
 //stop errant interrupts until set up
 CLI(); //disable all interrupts
 port_init();
 //timer0_init();

 Cpld_Init();
 Disp_Init();
 MCUCR = 0x00;
 GICR  = 0x00;
 TIMSK = 0x01; //timer interrupt sources
 SEI(); //re-enable interrupts
 //all peripherals are now initialised
}

void main()
{
int CpldResult1;
int CpldResult2;


init_devices();
Cpld_Set();

while(1)
{

CpldResult1=Cpld_Read(0);
CpldResult2=Cpld_Read(1);

#ifdef 	DEBUG
Cpld_Set();
Display(1234,0);
Display(4321,2);
#else
Display(CpldResult1,0);
Display(CpldResult2,2);
#endif

}


}