TQ2440 WINCE6.0 ADC驱动ADC_Read与ADC_Write
如题,大大们,我从天嵌论坛找的ADC驱动只实现了ADC_Read的功能,而ADC_Write没有实现。
我觉得这两个程序应该差不多,但是不知该怎么写ADC_Write,请指教!谢谢!
DWORD ADC_Read(DWORD hOpenContext, LPVOID pBuffer, DWORD Count){ int i; Count=sizeof(nADC_Value); dwADCCON_Save=v_pADCregs->ADCCON; for(i=0;i<4;i++) { nADC_Value[i]=0; if(!bADC_Enable[i]) continue; nADC_Value[i] = ReadADC(i); Sleep(10); } v_pADCregs->ADCCON = dwADCCON_Save; Sleep(20); memcpy(pBuffer,&nADC_Value[0],Count); RETAILMSG(1,(TEXT("ADC_Control: ADC_Read\r\n"))); return TRUE;}int ReadADC(int ch){ v_pADCregs->ADCCON = (1<<14)|(cbytPreScalerValue<<6)|(ch<<3); //setup channel v_pADCregs->ADCCON|=0x1; //start ADC while(v_pADCregs->ADCCON & 0x1); //check if Enable_start is low while(!(v_pADCregs->ADCCON & 0x8000)); //check if EC(End of Conversion) flag is high RETAILMSG(1,(TEXT("NO: %d Data: %d\r\n"),ch,(int)v_pADCregs->ADCDAT0 & 0x3ff)); return ( (int)v_pADCregs->ADCDAT0 & 0x3ff ); //此处返回读数据,改为写数据怎么做呢?}DWORD ADC_Write(DWORD hOpenContext, LPCVOID pSourceBytes, DWORD NumberOfBytes){ RETAILMSG(1,(TEXT("ADC_Control: ADC_Write\r\n"))); [color=#FF0000]return 0;[/color]}