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info44
Visitor II
April 4, 2003
Question

Erase 1 byte in flash

  • April 4, 2003
  • 4 replies
  • 860 views
Posted on April 04, 2003 at 11:37

Erase 1 byte in flash

    This topic has been closed for replies.

    4 replies

    I
    info44Author
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 11:53

    Is there a solution to erase one byte in the flash in order to reprogram it with a new value? I try to use it as an eeprom and i don't want to erase all the block to reprogram it

    Thanks,

    Sebastien
    Y
    yu-jun
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 11:53

    You can't erase a byte in the flash, because a block can be erase in the flash.

    There is a idea to erase a byte:

    1. you copy the block to RAM

    2. erase the block

    3. change the byte which you want to erase.

    4. write them to the block.

    J
    joseph2399
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 11:53

    Yes, you can update one byte at a time using the attached EEPROM emulation code.

    I
    info44Author
    Visitor II
    May 17, 2011
    Posted on May 17, 2011 at 11:53

    Thank you , iy works...

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