求助：atmega16运行跑飞

只看该作者 · 2014-3-19 20:53

小弟新手，最近用16芯片做个项目，发现在运行中出现重启的现象，重启的时间不固定。从现象看感觉像软件的问题，下面我将代码贴出来，望各位大虾帮忙看看是否有BUG，小弟先行谢了！:)

只看该作者 · 2014-3-19 21:01

void test(void)
{
run_state=T_B;
PORTD|=0x1b;
for(;;) {
if (warn!=0||run_stop==0) {
PORTD=0;
break;
}
if(run_mode!=RUN_NORMAL){
break;
}
Pause();
PineTesting();
if(flag_monitor_ok!=0){
flag_monitor_ok=0;
clear_p=RealPressure();
}

if(time_out>TIMEOVER){//判断计时是否超30S,超过报警
Warning(1);
flag_timeout_ok=0;
time_out=0;
}

switch(run_state){
case T_B://状态1
if((clear_p>=p_min) && (minus==1)){//转到下一状态
PORTD=0x1f;
time_keep=0;
flag_keep_ok=1;
flag_keeprun_ok=0;
run_state=K_B;
flag_timeout_ok=0;//关闭30S计时
if(time_out>TIMEOVER){//判断计时是否超30S,超过则报警
Warning(1);
flag_timeout_ok=0;
time_out=0;
}else{//否则重新开始下一轮计时
time_out=0;
flag_timeout_ok=1;//打开30S计时
}
flag_timereduce_ok=0;//关闭5S递减计时
if(time_reduce!=0){//判断计时是否超5S,不超过报警
Warning(2);
flag_timereduce_ok=0;
time_reduce=TIMEREDUCE;
}else{//否则重新开始下一轮计时
time_reduce=TIMEREDUCE;
flag_timereduce_ok=1;
}
}
case K_B://状态2
if(flag_keeprun_ok==1 && (clear_p<p_min-5)) {
PORTD=0x1b;
flag_keeprun_ok=0;
}
if(clear_p>=p_min+2){
PORTD=0x1f;
}
if(flag_keep_ok!=1){//转到下一状态
PORTD=0x15;
flag_ph=0;
run_state=B_T;
}
break;
case B_T://状态3
if((clear_p>5) && (flag_ph==0) && (minus==0)){
flag_ph=1;
PORTD=0x17;
}
if ((clear_p>=p_max) && (minus==0)) {//转到下一状态
PORTD=0x1f;
time_keep=0;
flag_keep_ok=1;
flag_keeprun_ok=0;
run_state=K_T;
flag_timeout_ok=0;//关闭30S计时
if(time_out>TIMEOVER){//判断计时是否超30S,超过则报警
Warning(1);
flag_timeout_ok=0;
time_out=0;
}else{//否则重新开始下一轮计时
time_out=0;
flag_timeout_ok=1;//打开30S计时
}
flag_timereduce_ok=0;//关闭5S递减计时
if(time_reduce!=0){//判断计时是否超5S,不超过则报警
Warning(2);
flag_timereduce_ok=0;
time_reduce=TIMEREDUCE;
}else{//否则重新开始下一轮计时
time_reduce=TIMEREDUCE;
flag_timereduce_ok=1;
}
}
break;
case K_T://状态4
if(flag_keeprun_ok==1 && (clear_p<p_max-10)) {
PORTD=0x17;
flag_keeprun_ok=0;
}
if(clear_p>=p_max+2){
PORTD=0x1f;
}
if(flag_keep_ok!=1){
PORTD=0x1b;
flag_pmax=1;
clear_count++;
flow_in+=CLEAR_LIQIUD;
if (clear_count>999) clear_count=0;
if (flow_in>50000) flow_in=0;
run_state=T_B;
}
break;
default:
break;
}
DisplayNum(1,1);//显示
}
}

只看该作者 · 2014-3-19 21:06

unsigned char readAdc(unsigned char chanel)
{
unsigned char i;
unsigned char dat=0;
unsigned char dat1=0;
unsigned char dat2=0;
PORTB|=0x08;//准备
NOP();
PORTB&=0xf7;//片选有效cs
Delay_us();
PORTB&=0xfe;
Delay_us();
PORTB|=0x02;//启动信号
Delay_us();
PORTB|=0x01;//第一个下降沿
Delay_us();
PORTB&=0xfe;
Delay_us();
PORTB|=0x02;//SGL,单极性
Delay_us();
PORTB|=0x01;//第二个下降沿
Delay_us();
PORTB&=0xfe;
Delay_us();
if(chanel==0){//通道0//通道选择
PORTB&=0xfd;
} else{//通道1
PORTB|=0x02;
}
Delay_us();
PORTB|=0x01;//第三个下降沿
Delay_us();
PORTB&=0xfe;
Delay_us();
Delay_us();
for(i=0;i<8;i++){//读取一个字节，高位在前
PORTB|=0x01;
Delay_us();
PORTB&=0xfe;
Delay_us();
dat1=PINB;
dat=dat<<1;
if((dat1&0x04)==0x04){
dat|=0x01;
}else{
dat|=0x00;
}
}
Delay_us();
for(i=0;i<8;i++){//读取一个字节，低位在前
PORTB|=0x01;
Delay_us();
PORTB&=0xfe;
Delay_us();
dat1=PINB;
dat2=dat2<<1;
if((dat1&0x04)==0x04){
dat2|=0x01;
}else{
dat2|=0x00;
}
}
PORTB|=0x08;//拉高片选
PORTB&=0xfe;//拉低时钟
Delay_us();
return dat;
}

unsigned char RealPressure(void)//压力值读取
{
unsigned char temp;
unsigned char nPress;
unsigned char nPress1;
unsigned char nPress2;
temp=readAdc(0);
if(temp<=50||temp>=186){
flag_adcover=1;
}else{
flag_adcover=0;
time_adcover=0;
}
if(temp>=p_zero){
minus=0;
nPress=temp-p_zero;
nPress2=nPress;
nPress1=nPress+(nPress2>>=3);
nPress=nPress1+nPress1/6;
}else{
minus=1;
nPress=p_zero-temp;
nPress2=nPress;
nPress1=nPress+(nPress2>>=3);
nPress=nPress1+nPress1/6;

}
if(nPress>(p_min+5)||nPress>(p_max+5)){/
flag_pover=1;
}else{
flag_pover=0;
time_pover=0;
}
return nPress;
}

void PineTesting(void)
{
unsigned char br=0;
br=readAdc(1);
if(br<50){
flag_leak=1;
}else{
time_leak=0;
flag_leak=0;
}
}

void Warning(unsigned char nAlarm)//警报声光提示
{
   run_stop=0;
   PORTD=0x80;
   second_flag=1;
   switch(nAlarm)
   {
   case 1:
         warn=1;
         state0|=0x02;
   break;
   case 2:
         warn=2;
         flow_alarm|=0x10;
         break;
   case 3:
         warn=3;
         state1|=0x02;
         break;
   case 4:
         warn=4;
         leak_alarm|=0x10;
   break;
   default:
         warn=0;
         break;
   }
}

只看该作者 · 2014-3-19 21:08

求助：atmega16运行跑飞

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