Delay with 50nS resolution...

[Acetronics2]

Hi, Bryan

I could answer you your " problem" deals with pure assembler ... and this is not here the right place to post it.

I will just tell you some ANs from µchip's site play with those time windows.

My electronics knowledge ( LOL !!! ) tell me to use a HF oscillator, a gated counter ... and read the counter result.

This sounds familiar to me as I read a while ago a datasheet from µchip where it was written " external gated TMR1 " ...

as I am a kind guy ... I remember it was the 16F636 ... but may be this feature exists aboard other PICs.

Counting my answers to your threads, I know one thing : a bit will be enough for that.

Alain

PS : "RTFM " means a little brain work from the author is Welcome. This Forum is not intended to give you " already kooked " solutions... But to try to learn you something ...

The Chinese story of the fisherman ...
or else:
If the finger shows the moon, the idiot looks at the finger ...

[SteveB]

Bryan,
I find your responses to Melanie quite shortsighted. In the short time I have been a member of this forum, I have read countless posts from Melanie (and many others) containing great information and answers. However, as Alain pointed out, this forum is not about giving people cookie cutter answers (but that does happen). Nor is it a place to substitute for someones lack of effort. It is more about helping people work through the process of application and understanding.

As you can deduce from my avatar, I am a Pilot. More accurately, for the last 10 years I have been an instructing pilot teaching others to fly. It is quite common for me to respond to a student's question with some version of RTFM, particularly when the question involves simple factual information which is easlily located (or when I preceive a lack of effort in learning the information). On the other hand, if a student has a question related to the application of what is in the manual, then I get excited. Now I can really do my job and help them work through the question/problem to get the answers. In the process, hopefully, they will learn more than just the answer to their question. That is exactly what I have seen on this forum, and why I consider it a key resource in my PIC education.

Is the response "RTFM" used too often by some, or employed rudely and indiscriminatly? Perhaps. But is that a reason to discount all the insightful, and FREE, help that is provided by the active (and very cabable) members of this group? Certainly not.

As for this thread, Melanie's second post was spot on, and not mocking at all. It did not reject the technique given, just pointed out that it
had considerable weaknesses in application, and may not be appropriate for your intended application.

As for me, thanks Melanie, Alain, Steve (mister_e), Darrel, ErnieM, and the many others I can't remember off the top of my head. I have learned a lot from your contributions.

Steve

[Melanie]

Well I'm sorry the forum doesn't meet your expectations. There's a couple of thousand members, some who contribute and some who don't, some who provide help, and some who receive help that would probably disagree with you that the forum isn't a useful source of information, education, inspiration and more than occasionally a kick up the butt where it's needed.

Now Ernie provided a nice answer for you, and I simply commented that it's not strictly the PIC measuring in real-time. But since I'm not aware if you wanted real-time measurement or not it could well be the exact thing you're looking for. Great - another statisfied punter rides into the sunset.

In the same way other folks have received answers, help, tips, schematics, code, set-up information and heaps of other goodies from this forum - you've obviously missed those posts. Some may even have been helped along the way. That information may not have been of use or interest to you - but it was to somebody somewhere. I stand by my comments - all of them!

[BigWumpus]

Why must I think to "eng444" ?

[mister_e]

probably because some of your lights blinked