>"J. Cabral" <Jorge.Cabral@DEI.UMINHO.PT> wrote:
>
>> I've compiled sucesseful the project and made a dowload to memory!
>>
>>  I connected an oscilloscope to the socket pin 2 (used pin 12 as GND)
>> and ... nothing worked!

<snipped various bits raising valid points>

Without wishing to buy into the subtext discussion going on in the
background to this thread, my bet is you haven't configured the
adc control bits to tell it PortA,0 was digital I/O not analog.

The '74 wakes up configured for analog input.

Ray Gardiner, Shepparton, Victoria, Australia, ray@netspace.net.au