OPTION_REG.7=0
Or does it ?
Hi all
Am using a 16f818 in a simple program …all is working BUT :-
OPTION_REG.7=0 ' Enables all pull-ups on PORTB
Question is What happens if only PORTB 0-3 are inputs and 4-7 are outputs….I thought I had seen a way of enabling . disabling some pins if this was the case…..
OR Does telling PBP that pin 4-7 are outputs do it for me ???
My program is working fine….. Just wondering !
Thank you for reading
Andy
Last edited by Archangel; - 12th March 2015 at 22:18.
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Re: OPTION_REG.7=0
Or does it ?
0 = PORTB pull-ups are enabled by individual port latch values - inputs only get pullups
BTW OPTION_REG.7=0 Decimal point got lost in post, I will fix in your post, check your code
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Re: OPTION_REG.7=0
Or does it ?
Selecting a gpio as output automatically disables the weak pull-up. Several peripherals do the same.
George
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Re: OPTION_REG.7=0
Or does it ?
Is what I thought .Originally Posted by towlerg
Just needed to confirm . Thank you
Andy
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