Originally Posted by Acetronics
Was that comment supposed to come off as sarcastic and demeaning?
Anyway.....
I assume you were referring to this manual (which was a secret to me - I had no idea this manual or the others in this list existed until you pointed out my ignorance for me).
http://ww1.microchip.com/downloads/e...Doc/33023a.pdf
A bunch more manuals:
http://www.microchip.com/stellent/id...GE&nodeId=1956
Section 30 of the noted manual is Electrical Specifications. I didn't see the measurement I needed specifically spelled out. Page 591 does note what appears to be a CCP low input time (by the graphic I assume this means the minimum time the pulse can be low and still be counted) as ".5Tcy +20" with no prescailer, but I don't know what Tcy is - but notes 10ns with the 16Cxxx when using a prescaler - does a prescailer of "1" still count? And why would that be shorter than with no prescailer and while we're there.... where are the measurements for the 16F - these are for the C.
At any rate, I'm going to try and catch this pulse with a 555 / 7555. I'm not aware of any specific monostables that are faster - if someone's got a part number, I'd much appreciate it. Any other ideas on flagging this event - I'm all about listening and experimenting if pointed in the right direction.
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