STC5A60S2单片机AD转PWM：模拟量控制电机示例

/*------------------------------------------------------------------------------------*/
/* --- STC MCU Limited ---------------- ---------------------------------------*/
/* --- 演示STC 1T 系列单片机 A/D转换功能------------------------------*/
/* --- Mobile: (86)13922809991 -----------------------------------------------*/
/* --- Fax: 86-755-82905966 ---------------------------------------------------*/
/* --- Tel: 86-755-82948412 ----------------------------------------------------*/
/* --- Web: www.STCMCU.com -----------------------------------------------*/
/* 如果要在程序中使用或在文章中引用该程序， -----------------------*/
/* 请在程序中或文章中注明使用了STC的资料及程序 -----------*/
/*-------------------------------------------------------------------------------------*/
#include "reg51.h"
#include "intrins.h"
//#define FOSC 11059200L
//#define BAUD 9600
typedef unsigned char BYTE;
typedef unsigned int WORD;
/*Declare SFR associated with the ADC */
sfr ADC_CONTR = 0xBC; //ADC control register
sfr ADC_RES = 0xBD; //ADC high 8-bit result register
//sfr ADC_LOW2 = 0xBE; //ADC low 2-bit result register
sfr P1ASF = 0x9D; //P1 secondary function control register
/*Define ADC operation const for ADC_CONTR*/
#define ADC_POWER 0x80 //ADC power control bit
#define ADC_FLAG 0x10 //ADC complete flag
#define ADC_START 0x08 //ADC start control bit
#define ADC_SPEEDLL 0x00 //540 clocks
//#define ADC_SPEEDL 0x20 //360 clocks
//#define ADC_SPEEDH 0x40 //180 clocks
//#define ADC_SPEEDHH 0x60 //90 clocks
/****************************yixia******************************/

sfr CCON = 0xD8; //PCA control register
sbit CCF0 = CCON^0; //PCA module-0 interrupt flag
sbit CCF1 = CCON^1; //PCA module-1 interrupt flag
sbit CR = CCON^6; //PCA timer run control bit
sbit CF = CCON^7; //PCA timer overflow flag
sfr CMOD = 0xD9; //PCA mode register
sfr CL = 0xE9; //PCA base timer LOW
sfr CH = 0xF9; //PCA base timer HIGH
sfr CCAPM0 = 0xDA; //PCA module-0 mode register
sfr CCAP0L = 0xEA; //PCA module-0 capture register LOW
sfr CCAP0H = 0xFA; //PCA module-0 capture register HIGH
sfr CCAPM1 = 0xDB; //PCA module-1 mode register
sfr CCAP1L = 0xEB; //PCA module-1 capture register LOW
sfr CCAP1H = 0xFB; //PCA module-1 capture register HIGH
sfr PCAPWM0 = 0xf2;
sfr PCAPWM1 = 0xf3;
/****************************yishang******************************/
//void InitUart();
void InitADC();
//void SendData(BYTE dat);
BYTE GetADCResult(BYTE ch);
void Initpwm(BYTE b);
//void Setpwm(BYTE a);//shezhi zhankongbi
void Delay(WORD n);
//void ShowResult(BYTE ch);
void main()
{

//InitUart(); //Init UART, use to show ADC result
InitADC(); //Init ADC sfr