蓝桥杯第十三届国赛程序设计题

#include <STC15F2K60S2.H> #include "intrins.h" #include "delay.h" #include "inithc138.h" #include "iic.h" #define de 5 code unsigned char Seg_Table[17] = { 0xc0, //0 0xf9, //1 0xa4, //2 0xb0, //3 0x99, //4 0x92, //5 0x82, //6 0xf8, //7 0x80, //8 0x90, //9 0x88, //A 0x83, //b 0xc6, //C 0xa1, //d 0x86, //E 0x8e, //F 0xbf }; unsigned char count = 0; unsigned int hz_count = 0; unsigned int tmp = 0; unsigned char show = 0; bit danwei1 = 0;//频率显示的单位 unsigned char voltage = 0;//用于读取电压值 unsigned int wet = 0;//用于转化湿度值 unsigned int time = 0;//超声波接受时间 unsigned int distance = 0;//测距距离 bit danwei2 = 0;//测距界面显示的单位 unsigned char canshu = 0;//参数界面切换 unsigned char hzcanshu = 15;//频率参数 unsigned char wetcanshu = 20;//湿度参数 unsigned char discanshu = 50;//距离参数 bit keystat = 0;//按键状态 unsigned char count_key = 0;//用于数长按的秒数 unsigned int wetDAC = 0;//湿度对输出电压的转换 bit motor = 0;//脉冲输出 unsigned char y5stat = 0x00; unsigned char pwm = 0; bit flag = 0; unsigned char ledstat = 0xff; bit ledspark = 0;//LED闪烁 bit flag2 = 0;//继电器吸合状态 unsigned char xihecishu = 0;//继电器吸合次数 //**************************************频率测量 void Timer0_Isr(void) interrupt 1 { hz_count++; } void Timer1_Isr(void) interrupt 3 { count++; if(keystat){ count_key++; } if(count == 20){ tmp = hz_count; hz_count = 0; count = 0; } if(count % 2 == 0){ ledspark = ~ledspark; } } void Timer_Init(void) //@12.000MHz { //50毫秒 TMOD = 0x07; //设置定时器模式 TL1 = 0xB0; //设置定时初始值 TH1 = 0x3C; //设置定时初始值 TF1 = 0; //清除TF1标志 TR1 = 1; //定时器1开始计时 ET1 = 1; //使能定时器1中断 //单次 TL0 = 0xFF; //设置定时初始值 TH0 = 0xFF; //设置定时初始值 TF0 = 0; //清除TF0标志 TR0 = 1; //定时器0开始计时 ET0 = 1; //使能定时器0中断 EA = 1; } //************************************** //**************************************湿度读取 void shidu(){ voltage = dianya(); Delay(1); wet = voltage * 100 / 255; } //************************************** //**************************************超声波测距 sbit TX = P1^0; sbit RX = P1^1; void Delay12us(void) //@12.000MHz { unsigned char data i; _nop_(); _nop_(); i = 33; while (--i); } void fangbo(){ unsigned char i; for(i = 0;i < 8;i++){ TX = 1; Delay12us(); TX = 0; Delay12us(); } } void ceju(){ CMOD = 0x00; //设置定时器模式 CL = 0x00; //设置定时初始值 CH = 0x00; //设置定时初始值 CF = 0; //清除TF0标志 CR = 0; //定时器0开始计时 fangbo(); CR = 1; while((RX == 1) && (CH < 17)); CR = 0; if(RX == 0){ RX = 1; time = (CH << 8) | CL; distance = time * 0.017; } } //************************************** //**************************************显示功能 void pinlvjiemian(){//频率界面 showsmg(1,Seg_Table[15]); if(danwei1 == 0){ showsmg(8,Seg_Table[tmp % 10]); if(tmp > 9){showsmg(7,Seg_Table[tmp / 10 % 10]);} if(tmp > 99){showsmg(6,Seg_Table[tmp / 100 % 10]);} if(tmp > 999){showsmg(5,Seg_Table[tmp / 1000 % 10]);} if(tmp > 9999){showsmg(4,Seg_Table[tmp / 10000 % 10]);} }else if(danwei1){ showsmg(8,Seg_Table[tmp / 100 % 10]); showsmg(7,Seg_Table[tmp / 1000 % 10] & 0x7f); if(tmp > 9999){showsmg(6,Seg_Table[tmp / 10000 % 10]);} } } void shidujiemian(){//湿度界面 showsmg(1,0x89); showsmg(8,Seg_Table[wet % 10]); if(wet > 9){showsmg(7,Seg_Table[wet / 10 % 10]);} if(wet > 99){showsmg(6,Seg_Table[wet / 100]);} } void cejujiemian(){ showsmg(1,Seg_Table[10]); if(danwei2 == 0){ showsmg(8,Seg_Table[distance % 10]); if(distance > 9){showsmg(7,Seg_Table[distance / 10 % 10]);} if(distance > 99){showsmg(6,Seg_Table[distance / 100 % 10]);} }else if(danwei2){ showsmg(8,Seg_Table[distance % 10]); showsmg(7,Seg_Table[distance / 10 % 10]); showsmg(6,Seg_Table[distance / 100 % 10] & 0x7f); } } /*void showcishu(){ showsmg(8,Seg_Table[xihecishu % 10]); showsmg(7,Seg_Table[xihecishu / 10 % 10]); showsmg(6,Seg_Table[xihecishu / 100 % 10]); }*/ //************************************** //**************************************参数界面 void pinlvcanshu(){//频率参数 showsmg(1,0x8c); showsmg(2,Seg_Table[1]); showsmg(7,Seg_Table[hzcanshu / 10 % 10] & 0x7f); showsmg(8,Seg_Table[hzcanshu % 10]); if(hzcanshu > 99){ showsmg(6,Seg_Table[hzcanshu / 100]); } } void shiducanshu(){ showsmg(1,0x8c); showsmg(2,Seg_Table[2]); showsmg(7,Seg_Table[wetcanshu / 10]); showsmg(8,Seg_Table[wetcanshu % 10]); } void julicanshu(){ showsmg(1,0x8c); showsmg(2,Seg_Table[3]); showsmg(7,Seg_Table[discanshu / 100] & 0x7f); showsmg(8,Seg_Table[discanshu / 10 % 10]); } void canshujiemian(){ switch(canshu){ case 0:pinlvcanshu();break; case 1:shiducanshu();break; case 2:julicanshu();break; } } //************************************** //************************************** void showselect(){ switch(show){ case 0:pinlvjiemian();break; case 1:shidujiemian();break; case 2:cejujiemian();break; case 3:canshujiemian();break; //case 4:showcishu();break; } } //************************************** //**************************************DAC输出 void DACshuchu(){ if(wet > 80){ wetDAC = 255; }else if((wet >= 10) && (wet <= 80)){ wetDAC = 2.91429 * wet + 21.8568; }else if(wet < 10){ wetDAC = 51; } DAC(wetDAC); } //************************************** //**************************************按键扫描 void scankey(){ if(P33 == 0){Delay(de);while(P33 == 0){showselect();}//S4 show++; show %= 4; canshu = 0; } if(show == 3){ if(P32 == 0){Delay(de);while(P32 == 0){showselect();}//S5 canshu++; canshu %= 3; } } if(P31 == 0){Delay(de);while(P31 == 0){showselect();}//S6 if(show == 2){ danwei2 = ~danwei2; } if(show == 3){ if(canshu == 0){hzcanshu += 5;if(hzcanshu > 120){hzcanshu = 10;}} if(canshu == 1){wetcanshu += 10;if(wetcanshu > 60){wetcanshu = 10;};} if(canshu == 2){discanshu += 10;if(discanshu > 120){discanshu = 10;}} } } if(P30 == 0){ Delay(de); while(P30 == 0){ showselect(); if(show == 1){ keystat = 1; } } keystat = 0; if(count_key <= 20){ if(show == 0){ danwei1 = ~danwei1; } if(show == 3){ if(canshu == 0){hzcanshu -= 5;if(hzcanshu < 10){hzcanshu = 120;}} if(canshu == 1){wetcanshu -= 10;if(wetcanshu < 10){wetcanshu = 60;};} if(canshu == 2){discanshu -= 10;if(discanshu < 10){discanshu = 120;}} } }else if(count_key > 20){ xihecishu = 0; eepromwrite(xihecishu); Delay(2); } count_key = 0; } } //************************************** //**************************************继电器控制功能 void jidianqikongzhi(){ if(distance > discanshu){ if(flag2 == 0){ xihecishu++; eepromwrite(xihecishu); Delay(2); } flag2 = 1; y5stat = y5stat | 0x10; }else{ flag2 = 0; y5stat = y5stat & ~0x10; } outputp0(5,y5stat); } //************************************** //**************************************脉冲输出功能 void Timer2_Isr(void) interrupt 12 { pwm++; if(pwm > 10){ pwm = 1; } if(motor){ if(pwm <= 8){ flag = 1; }else if((pwm > 8) && (pwm <= 10)){ flag = 0; } }else if(motor == 0){ if(pwm <= 8){ flag = 0; }else if((pwm > 8) && (pwm <= 10)){ flag = 1; } } } void Timer2_Init(void) //100微秒@12.000MHz { AUXR &= 0xFB; //定时器时钟12T模式 T2L = 0x9C; //设置定时初始值 T2H = 0xFF; //设置定时初始值 AUXR |= 0x10; //定时器2开始计时 IE2 |= 0x04; //使能定时器2中断 } void pinlvpanduan(){ if(tmp > (100*hzcanshu)){ motor = 1; }else{ motor = 0; } } void maichongshuchu(){ pinlvpanduan(); if(flag){ y5stat = y5stat | 0x20; }else{ y5stat = y5stat & ~0x20;