adcsetch.c

pic单片机的adc模块的转换应用.希望对大家有个启发和帮助.

#include <p18cxxx.h>
#include <adc.h>

#if defined (ADC_V1)
void SetChanADC(unsigned char channel)
{

  ADCON0 = (channel & 0b00111000) |
           (ADCON0 & 0b11000111);

}
#elif defined (ADC_V2) || defined (ADC_V3) || defined (ADC_V4) ||\
      defined (ADC_V5) || defined (ADC_V7) ||\
	  defined (ADC_V7_1) || defined (ADC_V6) || defined (ADC_V8)||\
	  defined (ADC_V10)
void SetChanADC(unsigned char channel)
{

  ADCON0 = ((channel >> 1) & 0b00111100) |
           (ADCON0 & 0b11000011);

}
#elif defined (ADC_V9)
void SetChanADC(unsigned char channel)
{

  WDTCONbits.DEVCFG = 0;  
  ADCON0 = ((channel >> 1) & 0b00111100) |
 	   (ADCON0 & 0b11000011);

}
#endif