蓝桥杯电子类指导书配套资料源码-单片机

#include "tim.h" #include "key.h" #include "seg.h" #include "stdio.h" #include "ds1302.h" #include "iic.h" unsigned int uiSeg_Dly; unsigned int uiVol_Val, uiFre_Val; unsigned int uiVol_Low, uiVol_High; unsigned char pucRtc[3] = {23, 59, 50}; unsigned char ucState, ucSec, pucEvent[4]; unsigned char pucSeg_Buf[9], pucSeg_Code[8], ucSeg_Pos; unsigned char ucKey_Dly, ucKey_Old; unsigned long ulms; void Timer0Init(void) // 16位计数器模式 { AUXR &= 0x7F; // 定时器时钟12T模式 TMOD |= 5; // 设置16位计数器模式 TL0 = 0; // 设置计数初值 TH0 = 0; // 设置计数初值 TF0 = 0; // 清除TF0标志 TR0 = 1; // 开始计数 } void Key_Proc(void); void Seg_Proc(void); void main(void) { Cls_Peripheral(); Timer1Init(); Timer0Init(); Set_RTC(pucRtc); EEPROM_Read(pucSeg_Buf, 0, 4); uiVol_Low = (pucSeg_Buf[1]<<8) + pucSeg_Buf[0]; uiVol_High = (pucSeg_Buf[3]<<8) + pucSeg_Buf[2]; if(uiVol_Low > 5000) uiVol_Low = 1000; if(uiVol_High > 5000) uiVol_High = 2000; while(1) { Key_Proc(); Seg_Proc(); } } void Time_1(void) interrupt 3 { ulms++; if(++ucKey_Dly == 10) ucKey_Dly = 0; if(++uiSeg_Dly == 500) uiSeg_Dly = 0; if(!(ulms % 1000)) { ucSec++; uiFre_Val = (TH0<<8)+TL0; TH0 = 0; TL0 = 0; } Seg_Disp(pucSeg_Code, ucSeg_Pos); if(++ucSeg_Pos == 8) ucSeg_Pos = 0; } void Key_Proc(void) { unsigned char ucKey_Val, ucKey_Down; if(ucKey_Dly) return; ucKey_Dly = 1; ucKey_Val = Key_Read(); ucKey_Down = ucKey_Val & (ucKey_Old ^ ucKey_Val); ucKey_Old = ucKey_Val; switch(ucKey_Down) { case 5: // S5：切换显示时钟、电压、频率或事件 ucState = (ucState&0xf0)+0x10; if(ucState >= 0x40) ucState = 0; if(ucState == 0x30) { // 读取事件 EEPROM_Read(pucEvent, 4, 4); if(pucEvent[0] > 2) pucEvent[0] = 0; if(pucEvent[1] > 24) pucEvent[1] = 0; if(pucEvent[2] > 60) pucEvent[2] = 0; if(pucEvent[3] > 60) pucEvent[3] = 0; }break; case 4: // S4：功能选择 switch(ucState&0xf0) { case 0: // 选择显示时钟、设置时、设置分或设置秒 if(++ucState == 4) { ucState = 0; Set_RTC(pucRtc); // 设置时钟 }break; case 0x10: // 选择显示电压、设置电压上限或下限 if(++ucState == 0x13) { ucState = 0x10; // 保存阈值 pucSeg_Buf[0] = uiVol_Low & 0xff; pucSeg_Buf[1] = uiVol_Low >> 8; pucSeg_Buf[2] = uiVol_High & 0xff; pucSeg_Buf[3] = uiVol_High >> 8; EEPROM_Write(pucSeg_Buf, 0, 4); }break; case 0x20: // 选择显示频率或周期 if(++ucState == 0x22) ucState = 0x20; break; case 0x30: // 选择显示事件类型或时间 if(++ucState == 0x32) ucState = 0x30; }break; case 9: // S9：参数加 switch(ucState) { case 1: if(++pucRtc[0] >= 24) pucRtc[0] = 0; break; case 2: if(++pucRtc[1] >= 60) pucRtc[1] = 0; break; case 3: if(++pucRtc[2] >= 60) pucRtc[2] = 0; break; case 0x11: if(uiVol_High <= 4500) uiVol_High += 500; break; case 0x12: if(uiVol_High - uiVol_Low > 500) uiVol_Low += 500; }break; case 8: // S8：参数减 switch(ucState) { case 1: if(pucRtc[0]) pucRtc[0]--; else pucRtc[0] = 23; break; case 2: if(pucRtc[1]) pucRtc[1]--; else pucRtc[1] = 59; break; case 3: if(pucRtc[2]) pucRtc[2]--; else pucRtc[2] = 59; break; case 0x11: if(uiVol_High - uiVol_Low > 500) uiVol_High -= 500; break; case 0x12: if(uiVol_Low >= 500) uiVol_Low -= 500; } } Led_Disp(ucState+0x11); } void Seg_Proc(void) { if(uiSeg_Dly) return; uiSeg_Dly = 1; switch(ucState&0xf0) { case 0: // 显示时钟 if(!ucState) Read_RTC(pucRtc); sprintf(pucSeg_Buf, "%02u-%02u-%02u", (unsigned int)pucRtc[0],\ (unsigned int)pucRtc[1], (unsigned int)pucRtc[2]); if(ucSec&1) switch(ucState) { case 1: // 熄灭时 pucSeg_Buf[0] = 0xff; pucSeg_Buf[1] = 0xff; break; case 2: // 熄灭分 pucSeg_Buf[3] = 0xff; pucSeg_Buf[4] = 0xff; break; case 3: // 熄灭秒 pucSeg_Buf[6] = 0xff; pucSeg_Buf[7] = 0xff; }break; case 0x10: uiVol_Val = PCF8591_Adc()*19.6; // 5000/255=19.6 if((uiVol_Val<uiVol_Low)||(uiVol_Val>uiVol_High)) { // 保存事件 if(uiVol_Val<uiVol_Low) pucSeg_Buf[0] = 0; else pucSeg_Buf[0] = 1; pucSeg_Buf[1] = pucRtc[0]; pucSeg_Buf[2] = pucRtc[1]; pucSeg_Buf[3] = pucRtc[2]; EEPROM_Write(pucSeg_Buf, 4, 4); } if(ucState == 0x10) sprintf(pucSeg_Buf, "-1- %04u", uiVol_Val); else { // 显示阈值 sprintf(pucSeg_Buf, "%04u%04u", uiVol_High, uiVol_Low); if(ucSec&1) if(ucState == 0x11) { // 熄灭上限 pucSeg_Buf[0] = 0xff; pucSeg_Buf[1] = 0xff; pucSeg_Buf[2] = 0xff; pucSeg_Buf[3] = 0xff; } else { // 熄灭下限 pucSeg_Buf[4] = 0xff; pucSeg_Buf[5] = 0xff; pucSeg_Buf[6] = 0xff; pucSeg_Buf[7] = 0xff; } }break; case 0x20: switch(ucState) { case 0x20: // 显示频率 sprintf(pucSeg_Buf, "-2-%05u", (unsigned int)uiFre_Val); break; case 0x21: // 显示周期 sprintf(pucSeg_Buf, "-3-%05.0f", (float)1000000.0/uiFre_Val); }break; case 0x30: switch(ucState) { case 0x30: // 显示事件类型 sprintf(pucSeg_Buf, " %02u", (unsigned int)pucEvent[0]); break; case 0x31: // 显示事件时间 sprintf(pucSeg_Buf, "%02u-%02u-%02u", (unsigned int)pucEvent[1],\ (unsigned int)pucEvent[2], (unsigned int)pucEvent[3]); } } Seg_Tran(pucSeg_Buf, pucSeg_Code); }