stc12c5a60s2-的AD转换显示程序.doc

/#include#include#include #define uchar unsigned char#define uint unsigned int#define ADC_POWER 0X80#define ADC_FLAG 0x10#define ADC_START 0X08#define ADC_SPEEDLL 0X00#define ADC_SPEEDL 0X20#define ADC_SPEEDH 0X40#define ADC_SPEEDHH 0X60sfr ADC_CONTR=0XBC;sfr ADC_RES=0XBD;sfr ADC_LOW2=0XBE;sfr PLASF=0X9D;sfr AUXR1=0XA2;void InitUart();void InitADC();void SendData(uchar dat);uint GetADCResult(uchar ch);void Delay(uint n);void ShowResult(uchar ch);void delay1(uint z);void main()InitUart();InitADC();while(1)ShowResult(3);delay1(2000);delay1(2000);delay1(2000);delay1(2000);delay1(2000);delay1(2000);void InitUart()SCON=0X5a;TMOD=0X20;TH1=0xfd; / 利用T1的溢出率来定义波特率TL1=0xfd;TR1=1;void InitADC()PLASF=0XFF;ADC_CONTR=ADC_POWER|ADC_SPEEDLL&(ADC_FLAG);ADC_RES=0;ADC_LOW2=0;Delay(2);uint GetADCResult(uchar ch)ADC_CONTR=ADC_POWER|ADC_SPEEDLL|ADC_START|ch;_nop_();_nop_();_nop_(); _nop_();_nop_();while(!(ADC_CONTR & ADC_FLAG); /转换完成ADC_CONTR=ADC_CONTR & (ADC_FLAG); /标志位复位0return(ADC_RES*4+ADC_LOW2); /10位分辨率，返回值void ShowResult(uchar ch)float V_data;uint ADC_data;uchar ge,shifen,baifen; SendData(ch);ADC_data=GetADCResult(ch);V_data=(ADC_data*5*10)/1024;ADC_data=V_data;ge=ADC_data/10;shifen=ADC_data%100/10;baifen=ADC_data%10;SendData(ge);SendData(shifen);SendData(baifen);void SendData(uchar dat)SBUF=dat;while(!TI);TI=0;void Delay(uint n)uint x;while(n-)x=500