isr.c

是本人在省赛是写的ad采集和显示的程序

//*******************************************************************//
//Interrupt Service Routine For C language
//*******************************************************************//
#include	"car.h"
#include	"s480.h"
//#include "tlv2543.h"
  __asm(".external	F_FIQ_Service_SACM_S480");
extern unsigned long int codetime;
extern  unsigned int codenum;
extern  unsigned int time_ms,time1;
extern  unsigned int ceshi;
extern  unsigned char sent_flag;
extern unsigned long int motor_step,step_num,motor0_num,motor0_time,motor1_time,motor1_num,time,timer;
extern unsigned char motor0_en,motor0_step,motor1_step,motor1_en,s0_flag,s1_flag,stepmode;
extern unsigned int index;
extern unsigned int dif_index;
extern float VOL[10], dif_VOL[10];
extern float voltage;

void BREAK(void) __attribute__ ((ISR));
void BREAK(void)
{
}
void FIQ(void) __attribute__ ((ISR));
void FIQ(void)
{
	if(*P_INT_Ctrl&C_FIQ_TMA)
  {
	*P_INT_Clear=C_FIQ_TMA;
	__asm("call F_FIQ_Service_SACM_S480");
	if(motor0_en)
	{
	  motor0_time++;
	  motor_step++;
	  if(motor0_time>motor0_num)
	  {  if(stepmode)
	    {
	  	 step_num--;
	  	  if(step_num==0)
		  {
		  	motor0_en=0;
		  	motor1_en=0;
		  	stepmode=0;
		  }
	    }
		  

	  	switch(motor0_step)
	  	{
	  	  case 0:
	  	  if(s0_flag==0)
	  	  {
	  	  	a0=1;
	  	  	b0=0;
	  	  	c0=0;
	  	  	d0=0;
	  	  	
	  	  }
	  	  else
	  	  {
	  	  	a0=0;
	  	  	b0=0;
	  	  	c0=0;
	  	  	d0=1;
	  	  }
	  	  break;
	  	  case 1:
	  	  if(s0_flag==0)
	  	  {
	  	  	a0=1;
	  	  	b0=1;
	  	  	c0=0;
	  	  	d0=0;
	  	  	
	  	  }
	  	  else
	  	  {
	  	  	a0=0;
	  	  	b0=0;
	  	  	c0=1;
	  	  	d0=1;
	  	  }
	  	   break;
	  	  case 2:
	  	  if(s0_flag==0)
	  	  {
	  	  	a0=0;
	  	  	b0=1;
	  	  	c0=0;
	  	  	d0=0;
	  	  	
	  	  }
	  	  else
	  	  {
	  	  	a0=0;
	  	  	b0=0;
	  	  	c0=1;
	  	  	d0=0;
	  	  }
	  	   break;
	  	  case 3:
	  	  	a0=0;
	  	  	b0=1;
	  	  	c0=1;
	  	  	d0=0;
	  	   break;
	  	  case 4:
	  	  if(s0_flag==0)
	  	  {
	  	  	a0=0;
	  	  	b0=0;
	  	  	c0=1;
	  	  	d0=0;
	  	  	
	  	  }
	  	  else
	  	  {
	  	  	a0=0;
	  	  	b0=1;
	  	  	c0=0;
	  	  	d0=0;
	  	  }
	  	   break;
	  	  case 5:
	  	  if(s0_flag==0)
	  	  {
	  	  	a0=0;
	  	  	b0=0;
	  	  	c0=1;
	  	  	d0=1;
	  	  	
	  	  }
	  	  else
	  	  {
	  	  	a0=1;
	  	  	b0=1;
	  	  	c0=0;
	  	  	d0=0;
	  	  }
	  	   break;
	  	  case 6:
	  	  if(s0_flag==0)
	  	  {
	  	  	a0=0;
	  	  	b0=0;
	  	  	c0=0;
	  	  	d0=1;
	  	  	
	  	  }
	  	  else
	  	  {
	  	  	a0=1;
	  	  	b0=0;
	  	  	c0=0;
	  	  	d0=0;
	  	  }
	  	   break;
	  	  case 7:	  	 
	  	  	a0=1;
	  	  	b0=0;
	  	  	c0=0;
	  	  	d0=1;
	  	   break;
	  	   default:break;	
	  	}
	  	motor0_time=0;
	  	motor0_step++;
	  	if(motor0_step>7)
	  	motor0_step=0;
	  }
	}	

		if(motor1_en)
	{
	  motor1_time++;
	  if(motor1_time>motor1_num)
	  {
	  	switch(motor1_step)
	  	{
	  	  case 0:
	  	  if(s1_flag==0)
	  	  {
	  	  	a1=1;
	  	  	b1=0;
	  	  	c1=0;
	  	  	d1=0;
	  	  	
	  	  }
	  	  else
	  	  {
	  	  	a1=0;
	  	  	b1=0;
	  	  	c1=0;
	  	  	d1=1;
	  	  }
	  	  break;
	  	  case 1:
	  	  if(s1_flag==0)
	  	  {
	  	  	a1=1;
	  	  	b1=1;
	  	  	c1=0;
	  	  	d1=0;
	  	  	
	  	  }
	  	  else
	  	  {
	  	  	a1=0;
	  	  	b1=0;
	  	  	c1=1;
	  	  	d1=1;
	  	  }
	  	   break;
	  	  case 2:
	  	  if(s1_flag==0)
	  	  {
	  	  	a1=0;
	  	  	b1=1;
	  	  	c1=0;
	  	  	d1=0;
	  	  	
	  	  }
	  	  else
	  	  {
	  	  	a1=0;
	  	  	b1=0;
	  	  	c1=1;
	  	  	d1=0;
	  	  }
	  	   break;
	  	  case 3:
	  	  	a1=0;
	  	  	b1=1;
	  	  	c1=1;
	  	  	d1=0;
	  	   break;
	  	  case 4:
	  	  if(s1_flag==0)
	  	  {
	  	  	a1=0;
	  	  	b1=0;
	  	  	c1=1;
	  	  	d1=0;
	  	  	
	  	  }
	  	  else
	  	  {
	  	  	a1=0;
	  	  	b1=1;
	  	  	c1=0;
	  	  	d1=0;
	  	  }
	  	   break;
	  	  case 5:
	  	  if(s1_flag==0)
	  	  {
	  	  	a1=0;
	  	  	b1=0;
	  	  	c1=1;
	  	  	d1=1;
	  	  	
	  	  }
	  	  else
	  	  {
	  	  	a1=1;
	  	  	b1=1;
	  	  	c1=0;
	  	  	d1=0;
	  	  }
	  	   break;
	  	  case 6:
	  	  if(s1_flag==0)
	  	  {
	  	  	a1=0;
	  	  	b1=0;
	  	  	c1=0;
	  	  	d1=1;
	  	  	
	  	  }
	  	  else
	  	  {
	  	  	a1=1;
	  	  	b1=0;
	  	  	c1=0;
	  	  	d1=0;
	  	  }
	  	   break;
	  	  case 7:
	  	  	a1=1;
	  	  	b1=0;
	  	  	c1=0;
	  	  	d1=1;
	  	   break;
	  	   default:break;	
	  	}
	  	motor1_time=0;
	  	motor1_step++;
	  	if(motor1_step>7)
	  		motor1_step=0;
	  }
	}	
   

	///////////////////////////////////////////////
  }
  if(*P_INT_Ctrl&C_FIQ_PWM)
  	*P_INT_Clear=C_FIQ_PWM;
  if(*P_INT_Ctrl&C_FIQ_TMB)
  	*P_INT_Clear=C_FIQ_TMB;
  
}
void IRQ0(void) __attribute__ ((ISR));
void IRQ0(void)
{
}
void IRQ1(void) __attribute__ ((ISR));
void IRQ1(void)
{	
	*P_INT_Clear=0x1000;

	/*codetime++;
	if(sent_flag)
	{
		if(codetime==2000)
		*P_IOB_Data|=0x0001;	//将IOB0置1
		if(codetime==5900)
		{
			*P_IOB_Data&=0xfffe;	//将IOB0置0
			codetime=0;
			codenum++;
		}
	}*/

}
void IRQ2(void) __attribute__ ((ISR));
void IRQ2(void)
{
}
void IRQ3(void) __attribute__ ((ISR));
void IRQ3(void)
{
}
void IRQ4(void) __attribute__ ((ISR));
void IRQ4(void)
{
	if(*P_INT_Ctrl&C_IRQ4_1KHz)
	{
	   *P_INT_Clear=0x0010;
	  time_ms++;
	   time++;
	   timer++;
	   if(*P_ADC_MUX_Ctrl&C_LINEIN_RDY)
	   {
	   	*P_ADC_MUX_Ctrl=C_ADC_MUX_IOA3;
	   voltage=(*P_ADC_LINEIN_Data>>6);
	   voltage*=(3.0/1024);
        VOL[index] = voltage;
        index++;
        if(index==10)index=0;
    
        dif_VOL[dif_index]=VOL[index-1]-VOL[index];
        dif_index++;
        if(dif_index==10) dif_index=0;
        
	   }
	  *P_Watchdog_Clear=1;
	}
	if(*P_INT_Ctrl&C_IRQ4_2KHz)
	   *P_INT_Clear=0x0020;
	 *P_Watchdog_Clear=1;
	if(*P_INT_Ctrl&C_IRQ4_4KHz)
	{
	   *P_INT_Clear=0x0040;
	    *P_Watchdog_Clear=1;
	 
	   }
	  	
}
void IRQ5(void) __attribute__ ((ISR));
void IRQ5(void)
{
}
void IRQ6(void) __attribute__ ((ISR));
void IRQ6(void)
{
}
void IRQ7(void) __attribute__ ((ISR));
void IRQ7(void)
{
}