ext_irq.c

EMB91SAM7S64开发板(全套资料)

//*----------------------------------------------------------------------------
//*      ATMEL Microcontroller Software Support  -  ROUSSET  -
//*----------------------------------------------------------------------------
//* The software is delivered "AS IS" without warranty or condition of any
//* kind, either express, implied or statutory. This includes without
//* limitation any warranty or condition with respect to merchantability or
//* fitness for any particular purpose, or against the infringements of
//* intellectual property rights of others.
//*----------------------------------------------------------------------------
//* File Name           : ext_irq.c
//* Object              : External interrupt handler for irq
//*                     : Use LED5 & LED6 for status interrupt
//* 1.0 24/Jun/04 JPP   : Creation
//*----------------------------------------------------------------------------

// Include Standard LIB  files
#include "Board.h"
#include "dbgu.h"
#include "spi.h"
#include "CAN.h"

int status_irq0 = 0 ;
int status_irq1 = 0 ;

extern unsigned char mdlc, mextF, mrtr;	
extern unsigned long mID;
extern void blink(unsigned int vLED);
//*----------------------------------------------------------------------------
//* Function Name       : at91_IRQ0_handler
//* Object              : Irq Handler called by the IRQ0 interrupt with AT91
//*                       compatibility
//*----------------------------------------------------------------------------
void at91_IRQ0_handler(void)
{
	unsigned char data[8],i;
    if (status_irq0 == 0) status_irq0 = 1;
    else status_irq0 = 0 ;
    
	blink(LED1);
        
	if(canRead(&mID,data,&mdlc,&mextF,&mrtr, SPI_0)==0)
	{
			AT91F_DBGU_Printk("\n\rSPI_0 DATA:");			  			
 			for(i=0;i<mdlc;i++)  			
 			uprintf("  %d",data[i]);
 			uprintf("  dlc=%d",mdlc);
 			uprintf("  id=%d",mID);				
	} 
		        
    //* while AT91C_PA20_IRQ0 is push loop
    while ( (AT91F_PIO_GetInput(AT91C_BASE_PIOA) & AT91C_PA20_IRQ0 ) != AT91C_PA20_IRQ0 );
}
//*----------------------------------------------------------------------------
//* Function Name       : at91_IRQ0_handler
//* Object              : Irq Handler called by the IRQ0 interrupt with AT91
//*                       compatibility
//*----------------------------------------------------------------------------
void at91_IRQ1_handler(void)
{
	unsigned char data[8],i;
    if (status_irq1 == 0) status_irq1 = 1;
    else status_irq1 = 0 ;
    
	blink(LED2);
     
	if(canRead(&mID,data,&mdlc,&mextF,&mrtr, SPI_1)==0)
	{
					
 			AT91F_DBGU_Printk("\n\rSPI_1 DATA:");			  			
 			for(i=0;i<mdlc;i++)  			
 			uprintf("  %d",data[i]);
 			uprintf("  dlc=%d",mdlc);
 			uprintf("  id=%d",mID);				
	}     
    //* while AT91C_PA30_IRQ1 is push loop
    while ( (AT91F_PIO_GetInput(AT91C_BASE_PIOA) & AT91C_PA30_IRQ1 ) != AT91C_PA30_IRQ1 );
}