adcon1/ adcin

[Melanie]

You went from something good like this...

ADCON1 = 2
.. ..
for sample = 0 to 20
adcin 2 ,temp
samples= samples + temp
pause 100
next sample
temp = samples / 20

...and all you had to do was change ADCIN 2 to ADCIN 0 (PBP Manual!) for it to read from RA0/AN0, to something like your second example which is completely shot.

For complete definitions of ADCON0 and ADCON1 see your PICs DATASHEET.

[Patrick]

Thanks Melanie

Out of desparation I looked at the sample on the Rentron page where they use the three pots on the inputs of the RA ports of the 16F87X pics,that is where the second example comes from.
If I program the pic as in example one I have 5volt on pin RA0 and 1 and I want to read from LM34 temp IC
If I make it Adcon1 = 2 and read on pin 2 and 3 it reads it but I want to know why I cannot get a reading from pin 0 and 1 when the IC is connected.I can also not figure it out on the data sheetsas Adcon1 = 2 makes the pins all analog with no Ref voltage on pins.

Please if someone can again simplify these settings ,I know that there is being many mails on this subject but,can someone point to a site or mail which makes it simple and just not repeat the data sheet.

Sometimes I just caun't see the obvious, but then I need help and that is why there is a great forum like this.

Melanie keep up the good work

Patrick van Biljon