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pic18f4520 read_program_memory

 
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lhdicfind



Joined: 26 May 2012
Posts: 1

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pic18f4520 read_program_memory
PostPosted: Sat May 26, 2012 9:45 pm     Reply with quote
Why not use pointer ?
Ttelmah



Joined: 11 Mar 2010
Posts: 19215

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PostPosted: Sun May 27, 2012 1:01 am     Reply with quote
Because it is program memory, not RAM.
Remember in the PIC, two completely different memory spaces. The ram can be read with normal I/O operations, but the ROM has to be read using different instructions, and different addresses. So there is an address '0', in the ROM, and another address '0' in the RAM.

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