三星S3F9454 ADC應用源代碼

 
//ADC通道號定義
#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)

 
//*************************************
// 函數名稱：AdcSwitch
// 函數功能: 在單通道模式下轉換某一通道的AD值					
// 入口參數：要轉換的AD通道號
// 出口參數：無
//***************************************
void AdcSwitch(uint8 Chanel)
{	
    uint8 Tmp = 0 ;
    
    Tmp = Chanel | 0x01 ;//選擇通道 啟動ADC轉換 速度16分頻
    ADCON = Tmp ;
    
    while((ADCON & 0x08)==0);
    ADCON &= ~0x08 ; //轉換結束標志清0
}


//----實例應用-------
void main(void)
{
	while(1)
	{
		while(!F_10MS);
		F_10MS = 0 ;


		//ADC啟動轉換
		AdcSwitch(ADC_Chanel1) ;
		g_ucTmp1 = ADDATAH ;	// 提取AD轉換結果
	//  g_ucTmp2 = ADDATAL ;

	}
}