12f675 to latch output while it does something else

[HenrikOlsson]

Hi,

it seems it is not possible to have 2 outputs HIGH at the same time....? i tried to lite up 2 leds:

Sounds like you're getting bit by the ever so clasic read-modify-write issue caused by not having analog functionallity on related pins turned off.

CMCON = 7   ' Turn off comparator on 12F675
ANSEL = 0    ' None of the I/O connected to the ADC

/Henrik.

[Ioannis]

What Henrik stated must be placed on top of your program.

Try it and reply the results.

Ioannis

[AVGuru]

What Henrik stated must be placed on top of your program.

Try it and reply the results.

Ioannis

Ok will do that we are out of the office already, GMT +8 here. That will be the first thing I try on Monday. Will keep you posted. Thanks Philip. Have a great weekend guys

[AVGuru]

Thanks henrik, Ill try that on Monday. Have a great weekend..!

Philip

[AVGuru]

Hi,


Sounds like you're getting bit by the ever so clasic read-modify-write issue caused by not having analog functionallity on related pins turned off.

CMCON = 7   ' Turn off comparator on 12F675
ANSEL = 0    ' None of the I/O connected to the ADC

/Henrik.

Henrik, thanks a million, we managed to get it to work. Alto port 1 out does not light the led. It ok I already know why. I can't see how I missed out the config for comparator. Thanks again....!

[AVGuru]

Hi henrik, I seem to have lost A.0 & A.1 & A.3 as outputs....? I tried to swap the led around the port, but they won't light up.

A.2 is the LED
A.4 is the RELAY and
A.5 is the Button