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Partial Programming of The Boot EEPROM — Parallax Forums

Partial Programming of The Boot EEPROM

sobakavasobakava Posts: 34
edited 2012-07-04 07:00 in Propeller 1
I store some configuration settings, parameters in the program memory EEPROM. I located all of them at the end of memory.

But I'm still in development phase and I program the Propeller again and again. When I program it using Spin Tool v1.27, seems it fills whole memory and erases my settings.

Is it possible to keep some part of the EEPROM as is while downloading the program?

The device might need to be reprogrammed in the field with firmware updates. I don't want the loose settings with updates.

Comments

  • VonSzarvasVonSzarvas Posts: 3,508
    edited 2012-07-04 05:53
    Not seen any way to do that. But you might consider changing the eeprom to larger size, then write your settings to the upper part of the eeprom. That will not be overwritten during firmware updates.

    I do that in my projects and it works very well. The 32K and 64K eeproms seem to be virtually the same price, and the footprint is exactly the same too, so you can drop a 64K eeprom anywhere you have a 32K at the moment!
  • UnsoundcodeUnsoundcode Posts: 1,532
    edited 2012-07-04 07:00
    This thread may give you a few ideas http://forums.parallax.com/showthread.php?130615-Slot-Programming-the-Propeller

    Jeff T.
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