understanding the pulse.

[skimask]

I do have another question tho

On a 4mhz chip how long would this take to add 1 and get back to while?

while GPIO.4=0
Nosig = Nosig + 1
wend

So, in my world:
one channel, idles low, 1-2 ms high going pulse, repeats every 20ms, no matter the high going pulse width

In your world:
one channel, idles high, 5-20ms low going pulse, repeats every 15-30ms depending on the low going pulse, minimum of 10ms idling high...

Is that good? Sure, you can get a freq off that.
And what I meant by the end result was...what is this whole thing running off of, what's it supposed to do in the end? Is this a new egg frying machine

As far as measuring the time in the above example, one way I do it is to write a program that is only the above example. I label every line. When done, I go back into the generated .lst file, find those labels, and write down the hex address for each label. Most instructions take 1 cycle (ie. 1us @ 4mhz clock rate), jumps, goto's, branches, etc. take 2 cycles (ie. 2us @ 4mhz clock). So, in your example (and I'm guessing here):

while GPIO.4=0 a 'bit test, skip if clear' instruction 1 or 2 cycles depending
Nosig = Nosig + 1 an 'add' instruction, 1 cycle
wend[/QUOTE] a 'jump' or 'goto', should be 2 cycles

So, this could be anywhere from 4 to 5 cycles depending on conditions. However, there are also bank bits to set sometimes if your code goes over code boundaries (not applicable in the 18F world) which will add 1 or 2 cycles. So, now you're at anywhere from 4 to 7 cycles per loop. Best way to figure it out is how I described it earlier. Or use MPLAB's IDE simulator and use the 'stopwatch' function. Or just build a prototype that'll work off it and toggle an led and 'scope those leds for freq.

[geckogrotto]

Ugg I typed up a reply but it didn't get posted.

Basically I get the same results as you do on the standard servo signal and the new results on the new one.

I'm not doing anything amazing or anything just trying to adapt a cheapo Tx Rx to a standard servo signal whoo hoo.

Also thanks for the help on the time, I don't need it that specific so 5us is close enough. Whats a few millionths of a second between friends hehe