Olin, On 4/3/07, Olin Lathrop wrote: > Anand Gadiyar wrote: > > Using a voltmeter, the Vcc pin shows 5 volts with respect to GND. > > And a output pin at logic high shows 4 volts with respect to GND. The > > same pin shows 0 volts with respect to the Vcc pin. The same is > > observed when i used a CRO to look at the waveforms. > > This is consistent with the pin having a high impedence connection to Vcc. > The surprising part is that a voltmeter and oscilloscope would read the same > value, but maybe you were using a 10x probe with the scope. I was wondering about this too. Couldn't explain it. Yes, I was using a 10x probe with the scope. Guess that explains it. Thanks for the pointers. Warm Regards, Anand -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist