[avr-libc-dev] [patch #6352] Far pointer library

[Carlos Lamas]

URL:
  <http://savannah.nongnu.org/patch/?6352>

                 Summary: Far pointer library
                 Project: AVR C Runtime Library
            Submitted by: carloslamas
            Submitted on: Friday 12/21/2007 at 14:40
                Category: None
                Priority: 5 - Normal
                  Status: None
                 Privacy: Public
             Assigned to: None
        Originator Email: 
             Open/Closed: Open
         Discussion Lock: Any

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Details:

This code is to intended to access the whole flash memory in devices with
flash address space bigger than 64KB.

The macro GET_FAR_ADDRESS() is the best version I've got after testing
several ones but is not always a direct replacement of the & operator for
getting far pointers. It has not been tested on ATmega2560, not even in
simulation.

The string and memory copy functions for far program memory xxxx-PF() are
still in beta stage and need more tests (not known bugs but not extensively
tested). They had been parked in my hard disk for a long time but the big ROM
devices users claim for some standard way to access the data in avr-libc.

Comments are welcomed.

Carlos Lamas.




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File Attachments:


-------------------------------------------------------
Date: Friday 12/21/2007 at 14:40  Name: extra pgmspace.zip  Size: 26kB   By:
carloslamas
Sources to access the flash beyond 64KB
<http://savannah.nongnu.org/patch/download.php?file_id=14680>

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