mS Timer

[boroko]

Hi All,

Working through a similar issue trying to time a couple of events and looking for some clarification.
In this explanation, and in the tips and tricks there is this line:

"2. Setup Timer1 so it will not overflow during max pulse width time".

Yet the amount of overflows is how you're measuring the pulse. What am I overlooking here, and why mention that?

I'm on a 12F683 and have been trying to use GPC_INT (Interupt on change) to do this, while keeping within one cycle of TMR1 and it has limitations. Using the overflow count and remainder looks like a much better idea. I'm going to crank through it that way and see if it solves my problem, I am just confused about that line.

Thanks
bo

[richard]

that post has two separate methods , one measures the pulse width with timer counts the other by timer overflows

[boroko]

Thank you Richard, I have few arenas that bring out self doubt as quickly as trying to muscle one of these little buggers.
I almost have it rewritten using this scheme. I hope to test it when I get back to the shop.
bo