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Large data arrays and external spi eeprom

 
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uni_student



Joined: 01 Aug 2007
Posts: 38
Location: AUckland, NEW ZEALAND

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Large data arrays and external spi eeprom
PostPosted: Wed Sep 19, 2007 6:46 pm     Reply with quote
PI18F452
M25P40 spi eeprom

Need to program a large data array in excess of the memory of the pic.
Approx 400KBytes of voice data.

I am comfortable with writing and reading the memory, but programming the contents of the data array I am clueless where to start.

Can I include a (#include "voice.c") and access each byte from there and program the memory or is there another method to do it.

Would like an example if there is any out there.
Any help please!!
PCM programmer



Joined: 06 Sep 2003
Posts: 21708

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PostPosted: Fri Sep 21, 2007 1:37 pm     Reply with quote
The CCS manual says this:
Quote:

CCS C compiler also provides a custom qualifier addressmod
which can be used to define a memory region that can be RAM,
program eeprom, data eeprom or external memory.

I don't know if this works, or if works with such a large memory size.
I haven't tested it.
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