  
            ʹADCɼģݣ͸
			
			
  ע
			DemoʹõADCΪPA0PA1
			ʹøDemoʱΪVERF+Źڵ2.7VҲ
			VDDAĲοѹʵʲοѹ޸
			ADCݹʽ
			
   ADCתʽ
			
			ADC=ADCѹ*4096/VREF
			ѹλأV

			
