frequency counter using 16f876

hank · Guest

hey guyz
pls hel,me using 16f876 as freq counter for measuring freq upto 15 khz
dun wid d programmin,used the same one which mike had posted it got compiled error free,now plzzzzz guyz telme wht to do me using a hall effect sensor,wht wud b the external circuitry required for connecting the hall sensor n interfacing it wid d pic,i mean wht pin connections,crystals,resistances etc.etc. wud have to b used,plsss guyz help me out any1 of u
waitin to hear frm u sooooooon

Humberto · Posted: Thu Mar 16, 2006 9:33 pm

Mark · Joined: 07 Sep 2003 Posts: 2838 Location: Atlanta, GA

This is also not the place to get your school assignments completed for you.

PICoHolic · Joined: 04 Jan 2005 Posts: 224

Come on guys, take it easy on him!!

Let me give you a hint, hank:

Use the Input Capture Module (CCP)

Good Luck

Mark · Joined: 07 Sep 2003 Posts: 2838 Location: Atlanta, GA

He is using someone else's code. He has no idea how to connect what he has to make it work. Why, cause he isn't doing any of the real work. We shouldn't take it easy on him. Undoubtly this is a school project where he is supposed to be learning something.

SherpaDoug · Joined: 07 Sep 2003 Posts: 1640 Location: Cape Cod Mass USA

1) Do your best to use proper English spelling and grammar. If English is not your primary language we can make allowances for grammar but your spelling should be reasonable.

2) RTFM... or in this case Read The Fine hall effect sensor Datasheet. I am sure it shows how to connect the sensor to a logic level input. Since there are many types of hall sensors we can't help you without a manufacturer and part number.
_________________
The search for better is endless. Instead simply find very good and get the job done.

Humberto · Posted: Fri Mar 17, 2006 10:50 am

Hi hank,

Firstly it wanted that you know that my previous commentary did not want to be
offensive, I only wanted to put a humor touch to him, but surely you understood
the message that was very well said by SherpaDoug:

"Do your best to use proper English spelling and grammar"

Regarding your question, in the following links you will find usefull info from where
you can learn.

http://ww1.microchip.com/downloads/en/devicedoc/41214a.pdf
http://www.elecdesign.com/Articles/Index.cfm?AD=1&ArticleID=8513
http://www.ccsinfo.com/forum/viewtopic.php?t=17726&highlight=freq
http://www.ccsinfo.com/forum/viewtopic.php?t=20039&highlight=freq

Did you read/understand/test the CCS ex_freqc.c code in the Examples Folder ?

I strongly recomend to read the microchip AN 41214.pdf found in the first link.

Humberto