pfm.c

pfm是调功程序

#include "my.h"//包含头文件

 extern struct {
 unsigned char  T1_ON ;
 unsigned char  T2_ON ;
 unsigned char  T3_ON ;//高电平时间数
 unsigned char fadein_num ;
 unsigned char fadeout_num ;
        }body;

 sbit PWM1 = P2^4;
 sbit PWM2 = P2^5;
 sbit PWM3 = P2^6;

 unsigned char  t;
 extern bit on;
 extern  uchar irtime;
void Timer1_isr(void) interrupt 3 using 1
{

 //static unsigned char  count,t;
// static unsigned char bank2 irtime;
 //static unsigned char bank2 i;
 TH1=0xff;		/* Init value */
 TL1=0x38;

 irtime++; 

if(!PWM1)PWM1=1;
if(!PWM2)PWM2=1;
if(!PWM3)PWM3=1;
 	 if(t==(T-body.T1_ON)&&body.T1_ON)//
 
  		PWM1=0;  	

	 if(t==(T-body.T2_ON)&&body.T2_ON)

 		PWM2=0;
	
 	 if(t==(T-body.T3_ON)&&body.T3_ON)

		PWM3=0;

        t++;



 	
}
void ISR(void) interrupt 0 using 1
{
  t=0xf8;
  TH1=0xff;		/* Init value */
  TL1=0x38;
}