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[求助]求教，抗干扰求教，抗干扰
1. 有一电路，见上传，FinglishiLed.sch，由CPU(pic16c73)控制继电器，继电器控制40W日光灯。
2. 功能已实现，当人按开关，CPU接到开关命令后，打开日光灯，大概工作30--300次不等时，总发生死机，LED显示全无，且不接收任何命令。
3. CPU内已开启看门狗，不起作用，但用示波器看晶振似乎跳动。
// watdog is not timo
#if defined(__PCM__)
#include <16f73.h>
#fuses XT,WDT,NOPROTECT //NOWDT
#use delay(clock=4000000)
#define uchar unsigned char
#define uint unsigned int
//uint time2s;time40s;
#byte port_b=6
#define jijinDec PIN_A0
//#define PIN_A1
#define Light_Dec PIN_B7
#define Left PIN_C5
#define Right PIN_C2
#define spkrF PIN_A5
//#define LightB PIN_B0
#define DoorB PIN_A4
//#define spkrA PIN_B2
//#define LightA PIN_B3
#define DoorA PIN_A3
#define Fengji PIN_C1
#define Light_Ce PIN_C0
//#define BellDoorc PIN_B7
//#define LcdDat PIN_C0
//#define LcdClk PIN_C1
//#define LOADPIN PIN_C2
//#define LcdCom PIN_B7
//#define PIN_C2
//#define PIN_C3
//#define PIN_C4
#define detDoorB PIN_A2
#define detDoorA PIN_A1
//#define spkrB PIN_C7
#define INTS_PER_SECOND 76 // (20000000/(4*256*256))
//#include <input.c>
#include <24041.c>
int16 seconds; // A running seconds counter
byte int_count; // Number of interrupts left before a second has elapsed
byte int_num1;
byte lightbiao;
byte DAfirst;
uchar disdata[3];
byte waitnum,waitnum1;
//byte lcdcomBZ;
byte doorOpen;
byte ledon;
//int16 wdtNum;
void wait() { // This function waits for either ~2ms or until a
int countdown; // event happens (in this case a rs232 character)
countdown=200;
while(--countdown!=0)
delay_us(10);
}
void wait_times(uint waitnum) // about 1 s
{
uint i,j;
for (j=0; j <waitnum;j++)
{
for (i=0; i <97;i++)
delay_ms(10);
restart_wdt(); // sets timer to interrupt in 200us
}
}
void wait_times_openA(uint waitnum) // about 1 s
{
uint i,j;
for (j=0; j <waitnum;j++)
{
for (i=0; i <100;i++)
delay_ms(6);
if(input(detDoorA))
{
doorOpen=0;
break;
}
restart_wdt(); // sets timer to interrupt in 200us
}
}
void wait_times_openB(uint waitnum) // about 1 s
{
uint i,j;
for (j=0; j <waitnum;j++)
{
for (i=0; i <100;i++)
delay_ms(6);
if(input(detDoorB))
{
doorOpen=0;
break;
}
restart_wdt(); // sets timer to interrupt in 200us
}
}
/*
void LCD(uchar ccdata)
{
uchar i,j;
i=8;
output_high(LOADPIN);
do
{
if((int1)(ccdata&0x01))
output_high(LcdDat);
else
output_low(LcdDat);
output_high(LcdClk);
output_low(LcdClk);
output_high(LcdClk);
ccdata> > =1;
}while(--i!=0);
output_low(LOADPIN);
}
*/
/////////////0403b 6f 0c 76 3-5e 1d 5b 7b 0e 7f 9-5f
//// Ma-RB6,mb-rb5,mc-rb4,md-rb3,me-rb3,mf-rb1,mg-rb0, com yang
//byte disdata[3];
static struct
{
uchar ascii;
uchar stroke;
} CONST led_stroke[27]= {{'0',0x81},{'1',0xcf},{'2',0x92},{'3',0x86},{'4',0xcc}, {'5',0xa4},{'6',0xa0},{'7',0x8f},{'8',0x80},{'9',0x84}, {'E',0xb0},{'-',0x81},{'.',0x20},{0x00,0x00},{0xff,0xff}, };
uchar get_stroke(uchar c)
{
uchar i=0;
while(led_stroke[i].ascii != c) i++;
return(led_stroke[i].stroke);
}
uchar kbscan(void) /* 4key */
{
if (!input(detDoorA)||!input(detDoorB)||!input(jijinDec)||!input(Right)||!input(Left)||!input(Light_Dec)) //(detDoorA 1; detDoorB 2; jijinDec 3; Right 4; Left 5; Light_Dec 6;
{
delay_ms(10);
{if (input(detDoorA)==0)
{
delay_ms(10);
{if (input(detDoorA)==0)
return(1);
}
}
}
{if(input(detDoorB)==0)
{
delay_ms(10);
{if(input(detDoorB)==0)
return(2);}
}}
{if(input(jijinDec)==0)
{ delay_ms(10);
{if(input(jijinDec)==0)
return(3);}
}}
{if(input(Right)==0)
{ delay_ms(10);
{if(input(Right)==0)
{output_low(spkrF);
delay_ms(140);
output_high(spkrF);
return(4);}}
}}
{if(input(Left)==0)
{ delay_ms(10);
{if(input(Left)==0)
{ output_low(spkrF);
delay_ms(140);
output_high(spkrF);
return(5);}}
}}
{if(input(Light_Dec)==0)
{ delay_ms(10);
{if(input(Light_Dec)==0)
{output_low(spkrF);
delay_ms(140);
output_high(spkrF);
return(6);}}
}}
}
else return(0);
}
void detDoorAF(void) //before door open for doora
{
output_low(DoorB); // high
output_high(DoorA);
//DAfirst=1;
}
void detDoorBF(void)
{
output_low(DoorA); // low
output_high(DoorB);
//DBfirst=1;
}
/*
void jijinDecF(void)
{
// DAfirst=1;DBfirst=0;
if (DAfirst==1)
{ DAfirst=0;
output_high(Fengji);
output_high(DoorB); //
output_high(DoorA);
wait_times(waitnum);
output_low(Fengji);
output_low(DoorB); //
output_low(DoorA);
//wait_times(waitnum);
}
}
*/
//void RightF(void){output_high(spkrA);}
//void LeftF(void){output_high(spkrB);}
void Light_DecF(void)
{ if (lightbiao==1)
{
output_high(Light_Ce); //high
lightbiao=0;
}
else
{
output_low(Light_Ce);
lightbiao=1;
}
}
void key_chuli(uchar key) //if (!detDoorA||!detDoorB||!jijinDec||!Right||!Left||!Light_Dec) //(detDoorA 1; detDoorB 2; jijinDec 3; Right 4; Left 5; Light_Dec 6;
{
// uchar key,speed_d_temp,JumpMark=1;
// uint i;
//uchar key;
// key = kbscan();
switch (key)
{ //sw
case 0:
break;
case 1:
detDoorAF();
seconds=0;
doorOpen=1;
while ((input(detDoorA)==0)&&(doorOpen==1))
{
// if(input(jijinDec)==0)
// {
// delay_ms(10);
// if(input(jijinDec)==0)
// jijinDecF();
// }
restart_wdt(); // sets timer to interrupt in 200us
if (seconds> 1200)
{
if ((seconds> 1200)&&(seconds <6600))
{
//restart_wdt(); // sets timer to interrupt in 200us
output_low(spkrF);
// output_high(spkrB);
// output_high(spkrA);
// output_low(LightB);
// output_low(LightA);
delay_ms(110); //140
// output_low(spkrA); //sound off
// output_low(spkrB); //sound off
output_high(spkrF);
// output_high(LightB);
// output_high(LightA);
//restart_wdt();
//wait_times(1);
wait_times_openA(3);
}
if (seconds> 6599)
{
output_high(DoorA); // low
output_high(DoorB);
output_low(spkrF);
// output_high(spkrB);
// output_high(spkrA);
// output_low(LightB);
// output_low(LightA);
delay_ms(110); //140
// output_low(spkrA); //sound off
// output_low(spkrB); //sound off
output_high(spkrF);
// output_high(LightB);
// output_high(LightA);
// wait_times(1);
delay_ms(500);
restart_wdt();
}
}
}
//// sound turn off
output_high(spkrF);
// output_low(spkrB);
// output_low(spkrA);
// output_high(LightB);
// output_high(LightA);
output_high(DoorB); //
DAfirst=1;
break;
case 2:
detDoorBF();
seconds=0; doorOpen=1;
while ((input(detDoorB)==0)&&(doorOpen==1))
{
// if(input(jijinDec)==0)
// {
// delay_ms(10);
// if(input(jijinDec)==0)
// jijinDecF();
// }
restart_wdt(); // sets timer to interrupt in 200us
if (seconds> 1200)
{
if ((seconds> 1200)&&(seconds <6600))
{
output_low(spkrF);
// output_high(spkrB);
// output_high(spkrA);
// output_low(LightB);
// output_low(LightA);
delay_ms(110); //140
// output_low(spkrA); //sound off
// output_low(spkrB); //sound off
output_high(spkrF);
// output_high(LightB);
// output_high(LightA);
//restart_wdt();
//wait_times(1);
wait_times_openB(3);
}
if (seconds> 6599)
{
output_high(DoorA); //
output_high(DoorB);
output_low(spkrF);
// output_high(spkrB);
// output_high(spkrA);
// output_low(LightB);
// output_low(LightA);
delay_ms(140);
// output_low(spkrA); //sound off
// output_low(spkrB); //sound off
output_high(spkrF);
// output_high(LightB);
// output_high(LightA);
//wait_times(1);
delay_ms(500);
restart_wdt();
}
}
}
//// sound turn off
output_high(spkrF);
// output_low(spkrB);
// output_low(spkrA);
// output_high(LightB);
// output_high(LightA);
output_high(DoorA); // low
DAfirst=0;
break;
case 3:
// DAfirst=1;DBfirst=0;
if (DAfirst==1)
{ DAfirst=0;
//wait_times(1);
delay_ms(600);
output_low(Fengji); //high
output_low(DoorB); //
output_low(DoorA);
restart_wdt(); // sets timer to interrupt in 200us
wait_times(waitnum);
output_high(Fengji); //low
output_high(DoorB); //
output_high(DoorA); //low
//wait_times(waitnum);
}
// jijinDecF();
// while (input(jijinDec)==0);
break;
case 4:
waitnum1=waitnum1+5;
if(waitnum1> 94) waitnum1=95;
//waitnum1
// SetTimerF();
while (input(Right)==0){restart_wdt(); } // sets timer to interrupt in 200us
break;
case 5:
//SetTimerF();
waitnum1=waitnum1-5;
if(waitnum1 <9) waitnum1=5;
while (input(Left)==0){restart_wdt(); } // sets timer to interrupt in 200us;
break;
case 6:
Light_DecF();
while (input(Light_Dec)==0){restart_wdt();} // sets timer to interrupt in 200us
break;
default:
break;
}//sw
}
// This function is called every time
//#int_rtcc
//clock_isr() { // the RTCC (timer0) overflows (255-> 0).
// For this program this is apx 76 times
// if(--int_count==0) { // per second.
// int_count=INTS_PER_SECOND;
// restart_wdt();
// }
//restart_wdt();
//}
void Ldis(byte tempdata)
{
uchar i,j;
//xdata1temp=tempdata;
//tempdata=(int)xdata1temp;
i=tempdata/10;
if (i> 9){i=9+0x30;}
else i=i+0x30;
j=tempdata%10;
j=j+0x30;
if (tempdata <0)
{
i='0';
j='0';
}
disdata[1]=get_stroke(i);
disdata[2]=get_stroke(j);
}
/*
void display(void)
{
port_b=disdata[1];
output_high(PIN_C7);
wait();
output_low(PIN_C7);
port_b=disdata[2];
output_high(PIN_C6);
wait();
output_low(PIN_C6);
}
*/
#INT_TIMER1
void wave_timer() {
// int i;
set_timer1(0xD500);
++seconds;
if(seconds> 60000) seconds=60000;
// wdtNum++;
// if(wdtNum> 2)
//{
// restart_wdt(); // sets timer to interrupt in 200us
// wdtNum=0;
//}
if(ledon==1)
{
output_low(PIN_C7);
port_b=disdata[1];
output_high(PIN_C6);
ledon=0;
}
else
{
output_low(PIN_C6);
port_b=disdata[2];
output_high(PIN_C7);
ledon=1;
}
}
void main(void)
{
unsigned char i,j,m,n;
unsigned char key1;
uchar dnum;
setup_timer_1(T1_INTERNAL|T1_DIV_BY_1); // setup interrupts
enable_interrupts(INT_TIMER1);
enable_interrupts(GLOBAL);
setup_wdt(WDT_2304MS); //WDT_2304MS
doorOpen=1;
ledon=1;
//wdtNum=0;
port_b=0;
set_tris_b(0x80);
switch ( restart_cause() )
{
case WDT_TIMEOUT:
{
break;
}
case NORMAL_POWER_UP:
{
break;
}
}
lightbiao=0;
output_low(spkrF);
delay_ms(100);
output_high(spkrF);
wait_times(2);
//////////////////////////////// door init
output_high(DoorB); //
output_high(DoorA); // low
DAfirst=0;
while((input(detDoorA)==0)||(input(detDoorB)==0))
{
restart_wdt(); // sets timer to interrupt in 200us
output_low(spkrF);
delay_ms(140);
output_high(spkrF);
wait_times(2);
}
waitnum=read_ext_eeprom(0x01);
waitnum1=waitnum;
if((waitnum> 95)||(waitnum <5))
{
waitnum=50;waitnum1=50;
}
Ldis(waitnum);
while(1)
{
restart_wdt();
key1=kbscan();
if (key1==1||key1==2||key1==3||key1==4||key1==5||key1==6)
key_chuli(key1);
if(!(waitnum1==waitnum))
{
waitnum=waitnum1;
Ldis(waitnum);
write_ext_eeprom(0x01,waitnum);
}
}
}
第2楼:
没看程序，只想提醒，不要用定时中断喂狗，没看程序，只想提醒，不要用定时中断喂狗，否则这狗就白养了。