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3-d array

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guest
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3-d array
Posted: Wed Jan 12, 2005 5:21 pm

javascript:emoticon('') Question Why is it that I can only declare: byte const SAMPLE [4][8][8]= {elements}; and not: byte const SAMPLE [5][8][8]= {more elements}; can CCS only handle so much? Thanks.

rianna
Guest

3-d array
Posted: Wed Jan 12, 2005 5:27 pm

Because 884 = 256. You can only fit about this much in some ROM banks (const?)

Darren Rook

Joined: 06 Sep 2003
Posts: 287
Location: Milwaukee, WI

Re: 3-d array

Posted: Wed Jan 12, 2005 8:22 pm

Reply with quote

guest wrote:

javascript:emoticon('

Question

')
Question
Why is it that I can only declare:
byte const SAMPLE [4][8][8]= {elements}; and not:
byte const SAMPLE [5][8][8]= {more elements};
can CCS only handle so much?
Thanks.

Which PIC?

What was the error you got?

PIC16s can't have a constant structure bigger than 256. PIC16s don't have table read/write, so it's done by adding a value to the PC. Well, you can only add 256 bytes to the PC so that's your limit.

PS - it is these kind of limitations that the PIC18 do not have.

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