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標題: STC12C5A60S2的AD采集程序求分享 [打印本頁]

作者: sunleaf 時間: 2019-1-6 17:48
標題: STC12C5A60S2的AD采集程序求分享
有大佬用過STC12C5A60S2的AD采集嗎？分享一下唄！

作者: asdf123456789 時間: 2019-1-28 11:58
還要嗎？

作者: GUELL 時間: 2019-1-28 14:13
// STC 官網 STC12C5Axx Series MCU A/D 例程
#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          //420 clocks
#define ADC_SPEEDL  0x20          //280 clocks
#define ADC_SPEEDH  0x40          //140 clocks
#define ADC_SPEEDHH 0x60          //70 clocks

void InitUart();
void InitADC();
void SendData(BYTE dat);
BYTE GetADCResult(BYTE ch);
void Delay(WORD n);
void ShowResult(BYTE ch);

void main()
{
InitUart();                   //Init UART, use to show ADC result
InitADC();                   //Init ADC sfr
while (1)
{
      ShowResult(0);             //Show Channel0
      ShowResult(1);             //Show Channel1
      ShowResult(2);             //Show Channel2
      ShowResult(3);             //Show Channel3
      ShowResult(4);             //Show Channel4
      ShowResult(5);             //Show Channel5
      ShowResult(6);             //Show Channel6
      ShowResult(7);             //Show Channel7
}
}

/*----------------------------
Send ADC result to UART
----------------------------*/
void ShowResult(BYTE ch)
{
SendData(ch);                //Show Channel NO.
SendData(GetADCResult(ch));    //Show ADC high 8-bit result

//if you want show 10-bit result, uncomment next line
// SendData(ADC_LOW2);          //Show ADC low 2-bit result
}

/*----------------------------
Get ADC result
----------------------------*/
BYTE GetADCResult(BYTE ch)
{
ADC_CONTR = ADC_POWER | ADC_SPEEDLL | ch | ADC_START;
_nop_();                      //Must wait before inquiry
_nop_();
_nop_();
_nop_();
while (!(ADC_CONTR & ADC_FLAG));//Wait complete flag
ADC_CONTR &= ~ADC_FLAG;       //Close ADC

return ADC_RES;                //Return ADC result
}

/*----------------------------
Initial UART
----------------------------*/
void InitUart()
{
SCON = 0x5a;                   //8 bit data ,no parity bit
TMOD = 0x20;                   //T1 as 8-bit auto reload
TH1 = TL1 = -(FOSC/12/32/BAUD); //Set Uart baudrate
TR1 = 1;                      //T1 start running
}

/*----------------------------
Initial ADC sfr
----------------------------*/
void InitADC()
{
P1ASF = 0xff;                //Open 8 channels ADC function
ADC_RES = 0;                   //Clear previous result
ADC_CONTR = ADC_POWER | ADC_SPEEDLL;
Delay(2);                      //ADC power-on and delay
}

/*----------------------------
Send one byte data to PC
Input: dat (UART data)
Output:-
----------------------------*/
void SendData(BYTE dat)
{
while (!TI);                   //Wait for the previous data is sent
TI = 0;                      //Clear TI flag
SBUF = dat;                   //Send current data
}

/*----------------------------
Software delay function
----------------------------*/
void Delay(WORD n)
{
WORD x;

while (n--)
{
      x = 5000;
      while (x--);
}
}

作者: 還有誰? 時間: 2019-2-10 16:52
好樣的,收下了

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