David Duffy (AVD) wrote:
> BANKSEL     PORTB
> CLRF        PORTB
> BANKSEL     LATB
> CLRF        LATB
> BANKSEL     ANSELB
> CLRF        ANSELB
> BANKSEL     TRISB
> CLRF        TRISB

I thought PORTB, LATB, TRISB, and ANSELB are always in the access bank.
Perhaps BANKSEL detects this and emits no code in that case.  However, if i=
n
doubt using BANKSEL is a good idea unless you need the cycles or space.

> Why bother clearing TRISB when you would be only writing to LATB
> anyway?

Huh?  You need to clear TRIS *because* you want to write to the pin.
Writing to LATB is one method of setting the pin's value from the firmware.


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