Tom=E1s =D3 h=C9ilidhe escribi=F3:
> My board is going crazy when I turn it on, and I reckon it's to do with
> there being a wrong interrupt setting or a pin set as a comparator when
> it shouldn't be.
> =

> Can someone please help me with the startup code for my 887? Here's how
> it should work:
> =

> * All pins should be set as I/O
> * All interrupts should be disabled
> * Port B should have internal pull-up's enabled
> =

> Here's what I've got so far:
> =

> void StartupConfig(void)
> {
>     ANSEL =3D 0;  /* Turn off Analog-to-Digital */
> =

>     OPTION &=3D ~0b10000000u;   /* Turn on pull-up's for Port B */
>     WPUB =3D 0b111111;  /* Individually set pull-up's for Port B */
> }
> =

> How do I turn off comparators? When I used the PIC16F684, it was done by
> "CMCON0 =3D 7", but I don't know how to do it for the 887.
> =

> Is there anything wrong with my code for setting the pull-up's, because
> it doesn't seem to be working?
> =


Tom=E1s, check the following

1. Check also for the ANSELH register, this also acts on =

PORTB on this pics.

2. Take a look at the VRCON , CM1CON0 and CM2CON0 regs in =

order to configure and or disable the Analog Comparators and =

Voltage Reference.






-- =

------------------------------
Mauricio Giovagnini (Maunix)
www.maunix.com.ar
Cordoba, Arg.
LinkedIn Profile: http://www.linkedin.com/in/mgiovagnini
-- =

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