Papageorgiou Spiros wrote:
>
> Hi PIcers?
>
> I wrote a piece of code which runs fine on a 16C84 and then i tried it
> on a 16C71 without success.. I don't really understand why, 'cause
> the two uCs seem to be identical with the exception of course of the
> DA converter of the C71 and the EEPROM of the 16C84.
> Since my code doesn't use any DA or EEPROM i believe it should run on
> both UC without modifications. Right?
> Anybody knows what might be wrong?
>
> Tips: Thesame source was recompiled for each uC.
> I'm testing the 2 chips on the same board that works well. (the 16C71 actually
> runs).
> The program doesn't even use timers and watchdogs and such things.
>
> Thanx
> Spiros Papageorgiou
> Email:
> mc89114@central.ntua.gr

Hi
When you want to run code written for the C84 or C61 on a C71, you must
add a line to your program (at the begining) in which you must set the
3 least significative bytes of the register ADCON1. If not, some inputs
(RA0-3) will be configured as analog input after the reset and they do
not work as you expected (as digital inputs).
Bye.

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--|    Fernando G. Martin        EMAIL  fgmartin@starnet.net.ar    |--
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