|
不知道程序哪出問(wèn)題了，想要用DS12C887的鬧鐘功能產(chǎn)生鬧鐘中斷，進(jìn)入外部中斷關(guān)閉LED。比如支持最小定時(shí)1分鐘，但是IRQ就是不產(chǎn)生下降沿，沒(méi)法進(jìn)入中斷，到底咋回事？大神們幫忙看看�。� #include <reg52.h> #define uint unsigned int #define uchar unsigned char sbit DIM=P2^0; sbit dscs=P1^1; sbit dsas=P1^2; sbit dsrw=P1^3; sbit dsds=P1^4; sbit dsirq=P3^3; uchar tmp,temp,flagding,scale,flag; uchar Buffer[1]={0x00}; void init(); void init_USART(); uint TQ(uchar n); void set_time(); void set_alarm(uchar,uchar,uchar); uchar read_ds(uchar); void write_ds(uchar,uchar); void main() { scale=100; init(); init_USART(); DIM=1; while(1) { if(flag==1) { scale=TQ(tmp); flag=0; } else scale=scale; if(flagding==1) { uchar shi,fen; flagding=0; shi=(temp&0xf0)>>4; fen=temp&0x0f; set_time(); set_alarm(shi,fen,0); write_ds(0x0B,0x26); dscs=0; EX1=1; } } } void init() { TMOD=0X22; TH0=0xD2; //定時(shí)初值設(shè)置為50us TL0=0xD2; EA=1; ET0=1; TR0=1;
} void init_USART() //串口初始化 { SCON=0x50; //設(shè)置串口通信數(shù)據(jù)位為8位 TMOD=0x22; //設(shè)置定時(shí)器1 TH1=0xFD; //設(shè)置波特率為9600 TL1=0xFD; TR1=1; EA=1; ES=1; read_ds(0x0c); EX1=1; //開(kāi)外部中斷1 IT1=1; //跳沿觸發(fā) } void timer0() interrupt 1 //定時(shí)器0產(chǎn)生PWM波，周期5ms { static uint t; t++; if(t==100) { t=0; DIM=1; } if(t<=scale) DIM=1; else DIM=0; } void USART() interrupt 4 //串口通信，接收藍(lán)牙信息 { uchar n; if(RI) { RI=0; EA=0; n=SBUF; if(Buffer[0]!=0x00) { temp=n; //定時(shí)時(shí)間 Buffer[0]=0x00; EA=1; flagding=1; } else if(n==0x7A) //0x7A為定時(shí)信號(hào)，下一字符將要接收定時(shí)時(shí)間 { Buffer[0]=n; EA=1; } else { tmp=n; EA=1; flag=1; } } } unsigned int TQ(uchar n)//將字符轉(zhuǎn)換成數(shù)字 { uint date,shu; if(n==0x6F) //如果接收字符為'o'，開(kāi)燈 return 100; else if(n==0x73) //如果接收字符為's'，關(guān)燈 return 0; else if(n>=0x00 && n<=0x63) //如果接收的字符在指定的范圍內(nèi) { date=n/10; shu=n%10; shu=date*10+shu; return shu; } else return scale; //否則保持之前狀態(tài) }
void write_ds(uchar add,uchar date) //寫(xiě)時(shí)鐘芯片 { dscs=0; dsas=1; dsds=1; dsrw=1; P0=add; dsas=0; dsrw=0; P0=date; dsrw=1; dsas=1; dscs=1; } uchar read_ds(uchar add) //讀時(shí)鐘芯片 { uchar ds_date; dsas=1; dsds=1; dsrw=1; dscs=0; P0=add; dsas=0; dsds=0; P0=0xff; ds_date=P0; dsds=1; dsas=1; dscs=1; return ds_date; }
void set_time() //設(shè)置時(shí)間為零點(diǎn)零分零秒，為定時(shí)關(guān)燈設(shè)置時(shí)間基準(zhǔn) { write_ds(4,0); write_ds(2,0); write_ds(0,0); } void set_alarm(uchar ashi,uchar afen,uchar amiao) //設(shè)置關(guān)燈時(shí)間 { write_ds(1,amiao); write_ds(3,afen); write_ds(5,ashi);
} void exter() interrupt 2 { uchar c; c=read_ds(0x0c); scale=0; dscs=1; EX1=0; }
| 
7 黑幣
QQ好友和群
QQ空間
騰訊微博
騰訊朋友
收藏
淘帖
頂
踩
