#include?
#include?
#include?
unsigned?char?code?table[]=“weixintiaoyitiao“;
unsigned?char?code?table1[]=“voltage:“;
unsigned?char?table2[]=“0.0000?V“;
unsigned?char?num;
sbit?lcden=P3^4;?
sbit?lcdrs=P3^5;?
sbit?dula=P2^6;?????
sbit?wela=P2^7;?
sbit?key=P3^3;
#define?VCC?4.95????//單片機供電電壓
unsigned?int?ADvalue;//存放A/D轉換返回的結果
float?Vin;???????????//存放計算出來的外部輸入電壓
void?ADC_P11_init（）
{
	unsigned?int?i;????//用于軟件延時程序
	ADC_CONTR|=0x80;???//開ADC電源
	for（i=0;i<10000;i++）;//適當延時等待A/D轉換供電穩定
	P1ASF|=0X02;???????//選擇P1.1作為A/D轉換通道0000?0010
	ADC_CONTR=0xe1;????//選擇P1.1作為A/D轉換通道最高轉換速度，清轉換完成標志
	ADC_CONTR|=0x08;???//啟動A/D轉換，ADC_START=1
	EADC=1;
	EA=1;
}
void?ADC（）interrupt?5
{
	unsigned?int?AD_Dat=0;???//10位A/D轉換值
	unsigned?char?Tmp=0;?????//臨時變量用于將A/D轉換出來的2個字節合成1個字節
	ADC_CONTR&=0xe7;?????????//將ADC_FLAG清0，ADC_FLAG=0，ADC_START=0
	AD_Dat=ADC_RES;??????????//默認高字節高8位
	AD_Dat<<=2;
	Tmp=ADC_RESL;????????????//默認低字節低2位
	Tmp&=0x03;???????????????//屏蔽無關位
	AD_Dat|=Tmp;?????????????//高、低字節拼接成一個10位數
	ADvalue=AD_Dat;
	ADC_CONTR|=0x08;?????????//啟動A/D轉換，ADC_START=1
}
void?delay（unsigned?int?z）?????//延時
{
	unsigned?in