| View previous topic :: View next topic |
| Author |
Message |
procos
Joined: 15 Dec 2004
Posts: 12
|
| pulse counter with pic16f873 - timer1(16 biti) |
 Posted: Thu Dec 16, 2004 1:50 am |
 |
|
Hi all,i am glade to by in this forum.
For you have adumbrate wath i want you have this link:
http://www.esatclear.ie/~grabe/PICfuelRate/PICmpg.html
or else talking i need to display :
- fuel used since power up( up to 65535)
- fuel flow rage( up to 255)
-time in sec,min, hour since power up
I do this with pic 16f84 but the maxim value is 65535 and 255, wath is not so good 
All this i want to now if is contingent with pic 16f873 or some else
thanx very much for your answer 
bye! |
|
 |
procos
Joined: 15 Dec 2004
Posts: 12
|
| ? |
| Posted: Thu Dec 16, 2004 3:31 am |
|
|
can help-my somebody?
  |
|
|
procos
Joined: 15 Dec 2004
Posts: 12
|
|
| Posted: Thu Dec 16, 2004 5:49 am |
|
|
input signal commes from one turbine chirp modulation or _| |_
frequance is proportional with flow
frequance of signal is: min 0-10 hz , 0-2000hz
ouput signal :0-10mA, 0-20 mA,4-20mA
This may by flowmeter (may by deceitful)
i am rigth?
help my plese!!
big thanx all |
|
|
Ttelmah
Guest
|
|
| Posted: Thu Dec 16, 2004 7:01 am |
|
|
The reason you have had no reply, is that I don't think anybody understands what you want...
Changing the processor, makes no difference to 'maximum values'. You can use numbers much larger than either 255, or 65535, on either processor, by just handling the 'carry' yourself. There have been examples posted in the past of how to deal with this.
Repost, a clearer question, and you may well get some answers...
Best Wishes |
|
|
procos
Joined: 15 Dec 2004
Posts: 12
|
| flowmeter |
| Posted: Thu Dec 16, 2004 7:51 am |
|
|
i want to make a flowmeter with pic16f873.
i have one turbine with one sensor whence generate signal
To Lcd 3 parameters:
- fuel used since power up
- fuel flow rage
-time in sec,min, hour since power up
i test first the up project (http://www.esatclear.ie/~grabe/PICfuelRate/PICmpg.html)
the affair is fuel used since power up, is too small 65535(us gallons or meters) beaucose pic16f84 have 8 biti timer end pic 16f873 with 16 biti TIMER(1) CHANGE THE SITUATION.
THANX FOR REPLAY
PS: SORRY FOR MY POOR LANGUAGE... |
|
|
procos
Joined: 15 Dec 2004
Posts: 12
|
| hi |
| Posted: Mon Dec 20, 2004 12:55 am |
|
|
i need some help to change the program code of pic 16f84from the adress(http://www.esatclear.ie/~grabe/PICfuelRate/PICmpg.html) in code for new microcontroler (16f873, 16f874, 16f877).
can you help
thanx for the answares.
bey |
|
|
|
FAQ 
Search
Register
Profile 
Log in to check your private messages 
Log in
