Discussion in "Project Help" started by    Utsavi    May 17, 2017.
Wed May 17 2017, 11:01 AM
#1
Hello

I am working with PXAG49KBA. In my project I used Timer0 as Timer and Timer1 as counter.

The timer in my case is working perfectly (1msec timer).

I want to use Counter to count external frequency. I set Counter 1 in 16 bit non auto reload mode (Set TMOD to 0x50). I cleared TH1 and TL1. Set TR1. On every 500msec I read TH1 and TL1 and clearing it. Every time I got garbage values.

Do I required to use RTL1 and RTH1?

Is there any register I need to set in XAG-49?

In my previous project I worked on P89C51RD2 and used Timer1 as Counter, which is working ok. From the reading, XAG-49 and P89C51RD2 have same settings.

But still my counter is not working. Also I set T1OE bit to 0. Still not succeed.

Any clue on this?

Regards
Utsavi Bharuchwala







Wed May 17 2017, 07:38 PM
#2
Just from reading the data sheet you seem to doing the right thing.

> Do I required to use RTL1 and RTH1?
I don't think so.

Are the values in TH1 and TL1 correct ( or at least stable) if you use timer mode ( TMOD = 0x10).
How are you timing the 500msec ?
It seems most likely your counter input is faulty, where does it come from ?


Thu May 18 2017, 05:57 AM
#3
Hello

Thanks for reply.

No the input pin is not faulty. I measured the frequency from input pin, which is OK. I also toggle Input pin.

> I read counter on every 500msec with help of my 1msec Timer 0, by incrementing variable upto 500 and after reset it.

Can you provide me a demo of XAG-49 counter so that I can verify.

Regards
Utsavi Bharuchwala





Thu May 18 2017, 11:18 PM
#4


Can you provide me a demo of XAG-49 counter so that I can verify.

Utsavi


I have never used the XAG-49 so can't provide code known to work on it.

What signal are you using as input to the counter ?

Can you provide your code and a circuit diagram.

Get Social

Information

Powered by e107 Forum System

Conversation

Sun May 20 2018, 10:01 AM
justinb
how to write and execute a program that read the keypad button and display the number on 7 segment on intel8051 at89s52 in assembly language?
Sun May 20 2018, 09:56 AM
justinb
how to write and execute a program that read the keypad button and diplay the number on 7 segment ?
Sun May 20 2018, 05:44 AM
StephenTitly
https://coindump.biz/?ref=0110ce0e15d11860f5c787dd7668239a
Thu May 17 2018, 06:36 AM
HAMZA TAJ
sir iwant to ask about controller of three phase supply by using back to back thyristor instead of triac....will u give me some guideline?
Sat Apr 28 2018, 12:54 PM
ashutosh jain
IR Remote Switch using TV remote (RC5 Protocol) is not working properly. opp1 & opp2 is in problem.plz help
ExperimenterUK
Fri Apr 27 2018, 08:09 PM
@kaiserslautern Post in forum
Wed Apr 25 2018, 07:09 AM
kaiserslautern
Hello everyone, using software uart is a very good idea for a second serial port. Thank you so much. I would kindly like to know how to connect this port to the PC?
ExperimenterUK
Sat Apr 21 2018, 07:50 PM
This is a community site. Feel free to help anyone needing advice
hareeshchamiyar
Thu Mar 29 2018, 10:47 AM
please help me for the configuration bits for dspic30f2010
hareeshchamiyar
Thu Mar 29 2018, 10:45 AM
can any one using dspic30f2010.

Downloads

Comments

bdmehta
Tue May 22 2018, 02:30 AM
kmag1953
Sun Apr 29 2018, 07:09 PM
udiwonder
Sat Apr 28 2018, 12:41 PM
pirpiri
Sat Apr 21 2018, 03:35 PM
Pater
Fri Apr 20 2018, 02:38 PM
jamiel
Sat Apr 14 2018, 12:47 AM
akrepkral76
Wed Apr 04 2018, 07:51 PM
samanthaeaves
Mon Apr 02 2018, 06:27 AM

Online

Guests: 59, Members: 0 ...

most ever online: 182184
(Members: , Guests: 182184) on 06 Aug 2010: 05:37 AM

Members: 37998
Newest member: bdmehta
Forum Activity
ExperimenterUK Avatar
Posted By ExperimenterUK
Mon May 14 2018, 10:17 PM
So the main problem is that I am not getting Analo...
ExperimenterUK Avatar
Posted By ExperimenterUK
Mon May 14 2018, 09:40 PM
Hi sir after checking all the connection i...
Pater Avatar
Posted By Pater
Mon May 14 2018, 05:36 PM
Basically my project is based on Data Acquisition ...
LAMBO Avatar
Posted By LAMBO
Sun May 13 2018, 02:13 PM
Hi sir after checking all the connection i...
ExperimenterUK Avatar
Posted By ExperimenterUK
Mon May 07 2018, 07:27 PM
This design should be fine.Choose a frequency betw...
Pater Avatar
Posted By Pater
Mon May 07 2018, 01:28 PM
Sorry for late reply as exams were on,Based on my ...
ExperimenterUK Avatar
Posted By ExperimenterUK
Thu May 03 2018, 03:32 PM
If the circuit works with a light bulb, the probl...
LAMBO Avatar
Posted By LAMBO
Thu May 03 2018, 08:04 AM
Hi sir as u mentioned above everthing is working...
ExperimenterUK Avatar
Posted By ExperimenterUK
Wed May 02 2018, 08:28 PM
Thanks for the video clip, it's a good idea.Electr...
LAMBO Avatar
Posted By LAMBO
Wed May 02 2018, 10:53 AM
Hi sir did the changes as per instructions. ...