Multiple Pulsin Measurements

[FinchPJ]

OK - the scenario is measuring multiple (8) pulses arising from eight simple 12F675 circuits outputing pulses - I can change that to whatever I want, currently 1mSec pulse every 50 mSec, but the 12F675 has an LC circuit driving its oscillator so the pulse width is altered by the LC circuit (and any adjacent metal/tuned circuit etc.

When I say the Picbasic routine was slow I mean the precision or resolution - using PB PULSIN gives a resolution of 40/OSC uSec - ie. 0.833 uSec at 48 MHz - so a 1000 uSec pulse gives a Pulsin answer of around 1224 - using my PicBasic routine I get a measurement (ie number if cycles of sampling) of only around 300 (ie 3 uSec resolution) and using assembler a similar result, unless I only sample one bit in which case it rises to arounf 800 (ie 1.1 uSec resolution). So a PULSIN resolution of 40/OSC is pretty impressive!

Interestingly, a sequence of several PULSIN commands on each successive pin gives a much better (more precise) result - maybe I should never have started this idea and stuck to dirty successive PULSINs!