Re: pulsin again!anyone plz help!
Hello,
I have to ask what exactly is your circuit doing or not doing? Does it do anything ?
Does it flash the LED ? This question next is not designed to offend you . . . Have you checked all of your connections for errors and continuity? Breadboard errors trip me up regularly as do poor connections caused by internal corrosion in the breadboards. You buy one, and unbeknownst to you, it sat on the dealer's shelf for ten years . . . and all the contacts are corroded. I have disassembled some that were really scuzzy.
One more thing, I think portB inputs default to weak pull ups on, turn them off in the option register.
EDIT: Nope default off. Easy to check with a hi impedance voltmeter though.
Last question: are you measuring a high pulse or a low pulse? State 0, indicates a low pulse, is that correct?
Last edited by Archangel; - 26th May 2011 at 07:16.
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