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  Topic: measure frequency ccp1 - measuring twice the value
fvnktion

Replies: 5
Views: 7859

PostForum: General CCS C Discussion   Posted: Fri Aug 28, 2009 11:28 am   Subject: measure frequency ccp1 - measuring twice the value
I have see the example and based this code off of it. The example talks about the overhead calculations as follows.


// CCP_1 is the time the pulse went high
} // ...
  Topic: measure frequency ccp1 - measuring twice the value
fvnktion

Replies: 5
Views: 7859

PostForum: General CCS C Discussion   Posted: Fri Aug 28, 2009 9:21 am   Subject: measure frequency ccp1 - measuring twice the value
Here is the updated code that i used to measure a 32khz signal with the processor running at 32Mhz. Attached is also the output of period showing a periodic 2X measurement.

Using compiler: 4.083
...
  Topic: measure frequency ccp1 - measuring twice the value
fvnktion

Replies: 5
Views: 7859

PostForum: General CCS C Discussion   Posted: Fri Aug 28, 2009 9:17 am   Subject: measure frequency ccp1 - measuring twice the value
Thanks for the info PCM.

I made the changes and the pll is now working. However i still get the same problem of a period measuring twice what it should.

I am trying to figure out what the max ...
  Topic: measure frequency ccp1 - measuring twice the value
fvnktion

Replies: 5
Views: 7859

PostForum: General CCS C Discussion   Posted: Thu Aug 27, 2009 3:34 pm   Subject: measure frequency ccp1 - measuring twice the value
Just trying to figure out why I am occasionally getting twice the expected value for a measured rising edges of a pulse.

Below is the code and terminal output of the measured pulse time, (not act ...
  Topic: PCD Compiler - explorer 16 pic24 - bugs?
fvnktion

Replies: 6
Views: 7405

PostForum: General CCS C Discussion   Posted: Fri Aug 14, 2009 3:59 pm   Subject: PCD Compiler - explorer 16 pic24 - bugs?
Very helpful.

Thank you.
  Topic: PCD Compiler - explorer 16 pic24 - bugs?
fvnktion

Replies: 6
Views: 7405

PostForum: General CCS C Discussion   Posted: Fri Aug 14, 2009 1:23 pm   Subject: PCD Compiler - explorer 16 pic24 - bugs?
Thanks for the reply. I will look into the timing setting of the registers.


My understanding, based on the ccs manual is that the %3f used in my printf should represent a precision of 3 and typ ...
  Topic: PCD Compiler - explorer 16 pic24 - bugs?
fvnktion

Replies: 6
Views: 7405

PostForum: General CCS C Discussion   Posted: Fri Aug 14, 2009 9:24 am   Subject: PCD Compiler - explorer 16 pic24 - bugs?
I would really like to get a general consensus on how much the PCD compiler is used and how well it is supported. I really dont want to dive too deeply here with the PCD if I am not going to be getti ...
  Topic: PCD Compiler - explorer 16 pic24 - bugs?
fvnktion

Replies: 6
Views: 7405

PostForum: General CCS C Discussion   Posted: Thu Aug 13, 2009 4:17 pm   Subject: PCD Compiler - explorer 16 pic24 - bugs?
I am just getting started with the PIC24 and its compiler. I am using version 4.083. I have just begun testing on the explorer 16 board and have run into the following issues:

#use delay must be ...
  Topic: measure audio level with ADC
fvnktion

Replies: 3
Views: 4227

PostForum: General CCS C Discussion   Posted: Wed Aug 12, 2009 4:38 pm   Subject: measure audio level with ADC
I'll have a look at the links.


Do you have a definition for the audio signal? Frequency Range? Periodic or not?


The signal will be the output stage of an audio amp from an MP3 player. The ...
  Topic: measure audio level with ADC
fvnktion

Replies: 3
Views: 4227

PostForum: General CCS C Discussion   Posted: Wed Aug 12, 2009 1:13 pm   Subject: measure audio level with ADC
I have a requirement to be able to be able to measure the audio level of an audio line. I am wondering if anyone has done anything like this using an adc of of PIC?

I am thinking about setting up ...
  Topic: PLL VCO error voltage resources on PIC
fvnktion

Replies: 1
Views: 3601

PostForum: General CCS C Discussion   Posted: Thu Jul 23, 2009 11:51 am   Subject: PLL VCO error voltage resources on PIC
Another key comment to make is that I will need to be able to decode modulated signals outside of the standard 30 - 56khz, which have handy little IR receivers already all packaged up for use.
  Topic: PLL VCO error voltage resources on PIC
fvnktion

Replies: 1
Views: 3601

PostForum: General CCS C Discussion   Posted: Thu Jul 23, 2009 11:48 am   Subject: PLL VCO error voltage resources on PIC
I am looking into a new project that requires the use of demodulating basic digital modulated signals such as Pulse width - position or manchester type of coding. I dont want to do all of the proces ...
  Topic: 4 pwm output suggestions - dsPIC33
fvnktion

Replies: 1
Views: 4995

PostForum: General CCS C Discussion   Posted: Fri Jul 17, 2009 4:01 pm   Subject: 4 pwm output suggestions - dsPIC33
I am getting ready for a project that will require 4 pwm outputs. I have up to this point been using the PIC18 series MCU's.

I don't see any option for PWM outputs up to 4 in the pic18's, but do ...
  Topic: icd2 icd3 in CCS IDE
fvnktion

Replies: 0
Views: 3248

PostForum: General CCS C Discussion   Posted: Wed May 20, 2009 9:21 am   Subject: icd2 icd3 in CCS IDE
I am now having trouble using the ICD2 and ICD3 in the ccs ide. Is there any documentation on using the debuggers and setting them up? I have seen the FAQ and taken the steps listed there. I have d ...
  Topic: ISR always entered at startup
fvnktion

Replies: 7
Views: 7627

PostForum: General CCS C Discussion   Posted: Fri May 15, 2009 9:55 am   Subject: ISR always entered at startup
Thanks for all the great input. Wish I could keep that dang data sheet memorized Smile.

Cheers
 
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