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Max array size on pic 18f

 
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Skirmitt



Joined: 19 May 2009
Posts: 60

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Max array size on pic 18f
PostPosted: Fri Aug 14, 2009 7:01 am     Reply with quote
Hi,

I'm currently doing a project that plays wave files. I have one set that works perfect and others that don't work. Is there a limit in array size ? Sometimes it happens that I compile a program and the compiler gets stuck in the compiling window (crash).

Code:

#include <18F2685.h>
#fuses INTRC_IO, NOWDT, NOPROTECT, BROWNOUT, PUT, MCLR
#use delay(clock = 8000000)
#use rs232 (baud=9600, xmit=PIN_C6, rcv=PIN_C7)

#include "stop11.h"
#include "start11.h"
#include "idle11.h"
#include "idlepss.h"

#define START_LENGTH 21042
#define STOP_LENGTH 29716
#define IDLE_LENGTH 15549
#define IDLEPSS_LENGTH 15557


This code works. But I don't know where the limit is as the compiler doesn't notify me.
mkuang



Joined: 14 Dec 2007
Posts: 257

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PostPosted: Fri Aug 14, 2009 8:49 am     Reply with quote
You might consider looking here"

http://www.ccsinfo.com/forum/viewtopic.php?t=5598&highlight=maximum+array+size
Ttelmah
Guest
PostPosted: Fri Aug 14, 2009 8:51 am     Reply with quote
How are we meant to know what your program does wth the declarations you show?....

Of course the chip has array limits. Depends what other variables you have declared, and the orders these are declared. Remember though just 3328 bytes of RAM.....

Best Wishes
asmboy



Joined: 20 Nov 2007
Posts: 2128
Location: albany ny

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PostPosted: Fri Aug 14, 2009 9:13 am     Reply with quote
playing wave files ?

Laughing Idea

what sample rate ? 200 hz ? 8 bit ?

with THAT PIC ?

Laughing
mkuang



Joined: 14 Dec 2007
Posts: 257

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PostPosted: Fri Aug 14, 2009 9:18 am     Reply with quote
Oh come on? THAT pic is one of the "higher" end pics in the 18 series. I used it once when my 2525 ran out of ROM and I had to find a pin for pin compatible replacement. If you are trying to play WAV files I don't think any PIC will do the trick.
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