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  Topic: Interrupt frequency difference 16F877 -> 18F452
David Eaves

Replies: 12
Views: 20872

PostForum: General CCS C Discussion   Posted: Sun Oct 10, 2004 2:46 am   Subject: Interrupt frequency difference 16F877 -> 18F452
Hi asmallri,

Thanks for the reply. I didn't realise that with the delay function, it is very useful to know. I have found one delay_ms(1) that is called from within the real timer_1 ISR. I'll try t ...
  Topic: Interrupt frequency difference 16F877 -> 18F452
David Eaves

Replies: 12
Views: 20872

PostForum: General CCS C Discussion   Posted: Sat Oct 09, 2004 1:52 pm   Subject: Code listing
Hi there, as suggested here is the code....
I've gone down to a simple program to hopefully show the problem. In doing this I now found that I'm having the same thing with a 16F877 so there is no dif ...
  Topic: Interrupt frequency difference 16F877 -> 18F452
David Eaves

Replies: 12
Views: 20872

PostForum: General CCS C Discussion   Posted: Fri Oct 08, 2004 4:23 pm   Subject: Interrupt frequency difference 16F877 -> 18F452
Hi there,

Your right, that will be the best way of getting to the bottom of the problem rather than speculation. I will sort out a cut down version tomorrow that shows what is happening.

Thanks ...
  Topic: Interrupt frequency difference 16F877 -> 18F452
David Eaves

Replies: 12
Views: 20872

PostForum: General CCS C Discussion   Posted: Fri Oct 08, 2004 12:57 pm   Subject: The plot thickens...
Hi all,

Sorry for my delay in the update here - my main job has been keeping me busy.

I did quite a bit of work looking into the timing problem I was having
-printed and read a lot of microchip ...
  Topic: Interrupt frequency difference 16F877 -> 18F452
David Eaves

Replies: 12
Views: 20872

PostForum: General CCS C Discussion   Posted: Tue Sep 28, 2004 4:14 pm   Subject: Interrupt frequency difference 16F877 -> 18F452
Thanks for all the input so far:

Neutone, I'm not using WDT, or accessing/modifying the counter value anywhere in the program. The code function is to keep track of time by incrementing a variable ...
  Topic: Interrupt frequency difference 16F877 -> 18F452
David Eaves

Replies: 12
Views: 20872

PostForum: General CCS C Discussion   Posted: Tue Sep 28, 2004 2:48 pm   Subject: Interrupt frequency difference 16F877 -> 18F452
Hi there,
This is the first time I haven�t been able to find the answer to my problem in this forum, I've also been trawling the Microchip website. Sorry if this has already been asked or is document ...
 
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