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CCS lcd drivers

 
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asjad



Joined: 09 Mar 2004
Posts: 52
Location: Greater Manchester - UK

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CCS lcd drivers
PostPosted: Sun Jun 06, 2004 12:47 pm     Reply with quote

PCM 3.185
PIC16F874

Dear All,

Does anyone know if there is a conflict if I do the following:

USE timer 0 via interrupts AND
USE standard CCS lcd drivers.

I have tried to use them together and I think there is conflict somewhere

Does anyopne know what resources the CCS LCD drivers take up??
i.e any interrupts/timers

YOUR FEEDBACK IS ALWAYS APPRECIATED
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PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Sun Jun 06, 2004 2:42 pm     Reply with quote

Quote:
Does anyone know what resources the CCS LCD drivers take up??
i.e any interrupts/timers

To answer this type of question, just look at the driver file, LCD.C.
This file will be in this folder: c:\Program Files\Picc\Drivers

If you see any functions with #int_xxx in front of them, then
that's an interrupt routine. Once you look at LCD.C, you will
see the answer.
Konrad



Joined: 15 Sep 2003
Posts: 34

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Not all LCDs static
PostPosted: Mon Jun 07, 2004 2:41 pm     Reply with quote

Not all LCDs are static, that is the graphic LCDs have maximum clocking periods as well as minimum periods, so a timer interrupt could extend signals out of tollerance.

Try disabling the timer interupt before LCD functions, and re-enabling them afterwards.
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