Question

程序解释，stc12c2052ad

#include <intrins.h>

#include <stdio.h>

typedef unsigned char uchar;
typedef unsigned int uint;

#define Vref (5.0)

//#define LED_CTR_BY_BYTE
#define LED_CTR_BY_BITS

#ifdef LED_CTR_BY_BITS
sbit LED_SEGP_A = P1^1;

bit AD_TREN_FLAG;
uchar FLED_SHOW_SEGS[4] = {LED_SEG_OFF,LED_SEG_OFF,LED_SEG_OFF,LED_SEG_OFF};//
#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 // 1080 clocks

void main(){
unsigned int sum;
unsigned char max,min,ad,i;

P1M0 = 0xC0; //

tr1_cnt = 0;
AD_TREN_FLAG = 1;

LED_NUM_0 = 1;

ADC_CONTR = ADC_SPEEDH | 0x07 | ADC_POWER; // 第七通道，P1^7

TMOD = 0x10;
TH1 = 249;
TL1 = 125;
EA = 1;
ET1 = 1;
TR1 = 1;

while(1){
if(AD_TREN_FLAG){
sum = 0;
max = 0x00;
min = 0xFF;
EA = 0; // 为提高精度暂停中断，实测不影响数码管的动态扫描
for(i = 0; i < 34; i++){
ADC_CONTR |= ADC_START;
_nop_();
_nop_();
while(!(ADC_CONTR & ADC_FLAG));
ad = ADC_DATA;
ADC_CONTR &= 0xE7;
if(ad > max)
max = ad;
if(ad < min)
min = ad;
sum += ad;
}
EA = 1;
sum -= min;
sum -= max;

uchar c;
#endif
TH1 = 249;
TL1 = 125;
i = tr1_cnt & 0x03;
switch(i){
case 3: LED_NUM_2 = 1; LED_NUM_3 = 0;break;
default: ;
}
AD_TREN_FLAG = 1;
#ifdef LED_CTR_BY_BYTE
FLED_SEG_P = FLED_SHOW_SEGS[i]; // 段选
#endif

#if LED_SEGP_H = c & 0x01;
#endif

tr1_cnt++;

Answer 1

这是一个STC单片机的程序下载软件（就是把编译后的数据下载到单片机），打开后在右上方有程序文件，EEPROM文件，--- ，范例程序 中有 ADC 范例 及 其它各种 范例，看看。