Xmega eeprom

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Jeff Graham

• June 16, 2011 07:52

I'm using eeprom on the Xmega to store configuration data which is unique device to device.  I've got a set of routines to access eeprom which all work fine. However, Crossworks sets all the data in eeprom to 0xff when I download new code.  Is it possible to disable this so it leaves the eeprom unchanged?

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  Michael Johnson

  • June 16, 2011 10:09

  There's a no-load section target property put EDATA0 into it. It's on my todo list to make this into a project property.

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  Jeff Graham

  • June 16, 2011 11:03

  I don't have a target property for no-load section.  It's a JTAGICE mk11.

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  Michael Johnson

  • June 16, 2011 11:08

  Which version of CrossWorks for AVR are you using?

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  Jeff Graham

  • June 16, 2011 11:28

  2.0.0.2009020800.4216

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  Michael Johnson

  • June 16, 2011 11:54

  This feature was added in v 2.0.2.

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  Jeff Graham

  • June 16, 2011 12:01

  Is there a charge for that version?  On your license you talk about 'major' upgrades being paid for.  Is that a major upgrade?

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  Michael Johnson

  • June 16, 2011 12:27

  No charge for v2.x updates.

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  Jeff Graham

  • June 16, 2011 12:45

  That worked fine, thanks very much.  It was nice to see that the update loaded and installed with no problems.  However, note, it isn't enough to set the no-load section property.  You have to set the 'Erase All' property to No.

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