Re: PIC16F916 ****tA as input

Dennis wrote:
> Hi,
> 
> Is there anyone using PIC16F916's lower half of ****tA (RA0~RA3) as
> digital inputs? I have problem on these pins. I actually have RA0 as
> analog input and RA1~RA4 as digital input. RA1~RA3 stuck low all the
> time regardless the condition on the pin while RA4 is ok. I configured
> the ****t as TRISA=0xFF, disabled LCD module by LCDEN=0 and configure
> analog as ANSEL=0x01. Did I miss anything on RA1~RA3? I also
> reassigned these 2 of the inputs to RA5 and RA6, they worked fine.
> Many thanks.
> 
> Dennis
Probably the same thing I had with other multi-function pins.
In your case, make sure CMCON0 is set to 0x07.  This will disable the 
comparator which wants to use RA0:RA3 as inputs.