第八届蓝桥杯国赛单片机组代码

#include "tim.h" #include "seg.h" #include "stdio.h" #include "key.h" #include "i2c.h" #include "ultrasonic.h" #include "intrins.h" unsigned char ucSec, ucLed; unsigned char pucSeg_Buf[9], pucSeg_Code[8], ucSeg_Pos;//pucseg_buf储存阿拉伯数字，code储存16进制 unsigned char mode=0; unsigned int times=0; unsigned int chaoshengbo[4]=0;//储存4次超声波 unsigned char chaoshengbonow=0;//储存当前超声波 unsigned int mangqu=0; unsigned long ulms, ulKey_Time,ulms2=0;//2存dac时间,3存led闪烁时间 unsigned int ulms3=0; unsigned int ulms1=0;//检验矩阵，50ms一次 unsigned char ucKey_Dly, ucKey_Old; unsigned char led=0,led1=0; bit led2=1; void Key_Proc(void); void keydo(unsigned char key_value); void Delay100ms() //@11.0592MHz { unsigned char i, j, k; _nop_(); _nop_(); i = 5; j = 52; k = 195; do { do { while (--k); } while (--j); } while (--i); } void leddo() { if(mode==0) { led&=0x7f; led|=0x40; } if(mode==1) { led&=0xbf; led|=0x80; } } void show() { int i=0; //Led_Disp(leddo);//LED显示功能 for(;i<10;i++) { pucSeg_Buf[i]=' '; } if(mode==0) { sprintf(pucSeg_Buf, "C %03u%03u", (unsigned int)chaoshengbonow,(unsigned int)chaoshengbo[1]);//打入字符串,以字符形式储存 } if(mode==1) { unsigned int time=chaoshengbo[3-times]; sprintf(pucSeg_Buf, "%u %3u",(unsigned int)times,(unsigned int)time);//打入字符串,以字符形式储存 } if(mode==2) { sprintf(pucSeg_Buf, "F %2u",(unsigned int)mangqu);//打入字符串,以字符形式储存 } Seg_Tran(pucSeg_Buf, pucSeg_Code);//将阿拉伯数字转换成16进制 } void keydo(unsigned char key_value) { if(key_value==4&&mode==0) { unsigned char i; led1=1; for(i=3;i>0;i--) { chaoshengbo[i]=chaoshengbo[i-1]; write_eeprom(i,chaoshengbo[i]); Delay100ms(); }chaoshengbonow=Wave_Recv(); chaoshengbo[0]=chaoshengbonow; write_eeprom(0,chaoshengbo[0]); } if(key_value==5&&mode!=1) { mode=1; } else if(key_value==5&&mode==1) { mode=0; } if(key_value==6&mode!=2) { mode=2; } else if(key_value==6&mode==2) { mode=0; } if(mode==2&&key_value==7) { mangqu+=10; if(mangqu>30) { mangqu-=30; } } if(mode==1&&key_value==7) { times++; times%=4; } } void dacdo() { if(chaoshengbonow<=mangqu) { Pcf8591_dac(0); } else { unsigned int dacshu=(chaoshengbonow-mangqu)*256.0*0.02/5+3; if(dacshu>250) { dacshu=250; } Pcf8591_dac(dacshu); } } void main(void) { unsigned char q=5; unsigned char i=0; for(i=0;i<4;i++) { chaoshengbo[i]=read_eeprom(i); Delay100ms(); } Cls_Peripheral(); Timer1Init(); Timer0Init(); times=0; while(1) { leddo(); Key_Proc(); show(); if(ulms2==100) { dacdo(); } } } void Time_1(void) interrupt 3 { ulms++; ulms1++; ulms2++; if(led1==1) { if(ulms3%1000==0) { if(led2==1) { led|=0x01; } else { led&=0xfe; } led2=~led2; } ulms3++; if(ulms3>5000) { ulms3=0; led1=0; } } if(++ucKey_Dly == 10) ucKey_Dly = 0; Led_Disp(led); Seg_Disp(pucSeg_Code, ucSeg_Pos); if(++ucSeg_Pos == 8) ucSeg_Pos = 0; if(ulms2==200) { ulms2=0; } } void Key_Proc(void) { unsigned char ucKey_Val, ucKey_Down, ucKey_Up; if(ucKey_Dly) return; ucKey_Dly = 1; ucKey_Val = Key_Read(); ucKey_Down = ucKey_Val & (ucKey_Old ^ ucKey_Val);//^按位异或 ucKey_Up = ~ucKey_Val & (ucKey_Old ^ ucKey_Val); ucKey_Old = ucKey_Val; if(ucKey_Down)//判断old是否和新的一样，一样说明是同一个,不会进入 { ulKey_Time = ulms; keydo(ucKey_Down); } if(ucKey_Old && (ulms - ulKey_Time > 800)) { ulKey_Time = ulms; ulKey_Time-=400; keydo(ucKey_Old); } }