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Writing to boot EEprom — Parallax Forums

Writing to boot EEprom

crgwbrcrgwbr Posts: 614
edited 2007-01-29 20:26 in Propeller 1
Is it possible to use the Boot EEprom for to store a few longs of data?· If so, I could·use the I2C routines on the object exchange, right?· Which Address should I start at?

Thanks,
crgwbr

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Comments

  • Mike GreenMike Green Posts: 23,101
    edited 2007-01-29 17:28
    Your program is loaded upward from zero. Start at the end of the 32K and work backwards in terms of allocating space. Keep in mind that anytime you download a new program to EEPROM, the data gets erased. If you add additional EEPROM or use a Proto Board (when they're released), or Hydra, you can use EEPROM above 32K and it won't be touched by downloads.

    You should be able to use the I2C routines in the object exchange
  • QuattroRS4QuattroRS4 Posts: 916
    edited 2007-01-29 20:26
    crgwbr & Mike,

    Mike gave an example a week or so ago - see the following post

    http://forums.parallax.com/forums/default.aspx?f=25&m=166651

    I was following the post when it started so I first tried it on the boot eeprom and that was fine and following on from that I used it to write to a second eeprom 24lc256 on different i/o pins and it worked just fine.
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