Hi Wesley,

Could your inputs be greater than +Vref?  The datasheets indicate that the
measurements are valid below +Vref, but I'm wondering what happens if they
equal or exceed +Vref.  I haven't seen any references as to how the ADCs
work if this situation occurs.

What are the ADCs reading up to this point?

myke
----- Original Message -----
From: "Wesley Moore" <wmoore@CS.RMIT.EDU.AU>
To: <PICLIST@MITVMA.MIT.EDU>
Sent: Thursday, October 18, 2001 10:54 PM
Subject: Halting 16F877


> I've made a project that uses an 877 to read 8 different A/D values
however
> when any one of the channels nears 5V (Vref- is GND and +Vref is +5V) the
PIC
> seems to halt. It doesn't reset it just seems to shut down. All activity
stops.
>
> Does anyone have any idea what might be causing this and how I might fix
it.
>
> TIA
> Wesley
>
> --
> Wesley Moore                          http://1moore.org/
> RMIT - BEng (Comp Sys Eng)/BApp.Sc. (Comp Sci)  3rd Year
>
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