三星S3F9454 ADC应用源代码

//ADC通道号定义
#define ADC_Chanel0 (unsigned char)(0x00<<4)
#define ADC_Chanel1 (unsigned char)(0x01<<4)
#define ADC_Chanel2 (unsigned char)(0x02<<4)
#define ADC_Chanel3 (unsigned char)(0x03<<4)
#define ADC_Chanel4 (unsigned char)(0x04<<4)
#define ADC_Chanel5 (unsigned char)(0x05<<4)
#define ADC_Chanel6 (unsigned char)(0x06<<4)
#define ADC_Chanel7 (unsigned char)(0x07<<4)
#define ADC_Chanel8 (unsigned char)(0x08<<4)

//*************************************
// 函数名称：AdcSwitch
// 函数功能: 在单通道模式下转换某一通道的AD值
// 入口参数：要转换的AD通道号
// 出口参数：无
//***************************************
void AdcSwitch(uint8 Chanel)
{
uint8 Tmp = 0 ;

Tmp = Chanel | 0x01 ;//选择通道 启动ADC转换 速度16分频
ADCON = Tmp ;

while((ADCON & 0x08)==0);
ADCON &= ~0x08 ; //转换结束标志清0
}

//----实例应用-------
void main(void)
{
while(1)
{
while(!F_10MS);
F_10MS = 0 ;

//ADC启动转换
AdcSwitch(ADC_Chanel1) ;
g_ucTmp1 = ADDATAH ; // 提取AD转换结果
// g_ucTmp2 = ADDATAL ;

}
}