基于51单片机的频率计

#include <REGX52.H> #include "juzhen.h" #define uchar unsigned char #define uint unsigned int sbit INT=P3^3; uchar keynum,key_down,key_up,key_flag,key_old; uchar smg[]={10,10,10,10,10,10}; uchar smg_duan[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x00}; uchar pos; uint smg_flag,F; uchar count; unsigned long kuandu; bit moshi;//0 频率 1 脉宽 bit jinzhi;//0 us 1ms void key_disp() { // if(key_flag)return; // key_flag=1;//20ms keynum=juzhen(); // key_down=keynum&(key_old^keynum); // key_old=keynum; if(keynum==1)moshi^=1; if(keynum==2)jinzhi^=1; } void smg_disp() { if(moshi==0) { smg[5]=moshi; smg[4]=F/10000%10; smg[3]=F/1000%10; smg[2]=F/100%10; smg[1]=F/10%10; smg[0]=F%10; }else { if(jinzhi==0) { smg[5]=moshi; smg[4]=kuandu/10000%10; smg[3]=kuandu/1000%10; smg[2]=kuandu/100%10; smg[1]=kuandu/10%10; smg[0]=kuandu%10; }else { smg[5]=moshi; smg[4]=kuandu/10000000%10; smg[3]=kuandu/1000000%10; smg[2]=kuandu/100000%10; smg[1]=kuandu/10000%10; smg[0]=kuandu/1000%10; } } } void xinxi_disp() { if(smg_flag)return; smg_flag=1; if(moshi) { while(INT==1); while(INT==0); TR1=1; while(INT==1); TR1=0; kuandu=count*65535+(TH1<<8|TL1); TH1=TL1=0; count=0; } // P1_0=jinzhi; } void smg_scanf(uchar wei,shu) { P0=0x00; P2=~(0x01<<wei); P0=smg_duan[shu]; } void Timer0_Init() //[email protected] { TMOD &= 0xF0; //??????? TMOD |= 0x05; //??????? TL0 = 0x00; //??????? TH0 = 0x00; //??????? TF0 = 0; //??TF0?? TR0 = 1; //???0???? } void Timer1_Init() //[email protected] { TMOD &= 0x0F; //??????? TMOD |= 0x90; TL1 = 0; //??????? TH1 = 0; //??????? TF1 = 0; //??TF1?? TR1 = 1; //???1???? ET1=1; EA=1; } void Timer2_Init() { T2MOD = 0; T2CON = 0; TL2 = 0x18; TH2 = 0xFC; RCAP2L = 0x18; RCAP2H = 0xFC; TR2 = 1; ET2=1; PT2=1; EA=1; } void main() { Timer0_Init(); Timer1_Init(); Timer2_Init(); while(1) { xinxi_disp(); key_disp(); smg_disp(); } } void Timer1() interrupt 3 { TF1=0; count++; } void Timer2() interrupt 5 { TF2=0; if(++pos==6)pos=0; if(++key_flag==20){key_flag=0;juzhen_Loop();} smg_scanf(pos,smg[pos]); if(++smg_flag==1000) { TR0=0; F=(TH0<<8)|TL0; smg_flag=0; TH0=TL0=0; TR0=1; } }