XMEGA fuses in source code or project settings

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ganzziani
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Posted by ganzziani: Mon. Dec 21, 2009 - 11:42 PM
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Everytime I debug my XMEGA project, I get a message:
"The device's EESAVE fuse is currently programmed, but the project settings does not specify that EEPROM should be preserved. Would you like to preserve the device's EEPROM during programming?"

I hit yes, then I get this message:
"The object file indicates initialized EEPROM data. Do you want to load this data?"

I want to skip both theses messages. How do I set the fuses in the project settings? I tried setting the fuses in the source code:

FUSES = {
    .byte[5] = FUSE_EESAVE,
};

And didn't work, by the way, is that the correct way of setting the fuses in the code?

Thanks.

www.gabotronics.com

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Tools, Compilers and General Programming
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Bronze Markjs
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Posted by js: Tue. Dec 22, 2009 - 02:04 AM
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Quote:
How do I set the fuses in the project settings
In the JTAG options. At least that's the case with other AVRs.

John Samperi

Ampertronics Pty. Ltd.

www.ampertronics.com.au

* Electronic Design * Custom Products * Contract Assembly

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ganzziani
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Posted by ganzziani: Sat. Jan 16, 2010 - 08:16 PM
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Are you referring to this window?

I tried unchecking the "Enable fuse warnings", no difference.
I tried checking the "Program EEPROM", no difference.

How do I set the fuses in the code?

Attachment(s): 

Image icon JTAG Settings

www.gabotronics.com

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Bronze Markjs
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Posted by js: Sat. Jan 16, 2010 - 10:11 PM
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No that's the programming window, it has nothing to do with debug. You need to start a debug session then go to Debug > JTAG MK2 options

John Samperi

Ampertronics Pty. Ltd.

www.ampertronics.com.au

* Electronic Design * Custom Products * Contract Assembly

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ganzziani
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Posted by ganzziani: Sat. Jan 16, 2010 - 10:42 PM
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Ok!, I found it. I checked on "Preserve EEPROM contents when reprogramming" chekcbox. That took care of the first warning. I am still getting the second warning:

Quote:
"The object file indicates initialized EEPROM data. Do you want to load this data?"

www.gabotronics.com

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Bronze Markjs
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Posted by js: Sun. Jan 17, 2010 - 02:29 AM
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Well you are 50% there. :) May have to live with that, I haven't played with the Xmega that much yet.

John Samperi

Ampertronics Pty. Ltd.

www.ampertronics.com.au

* Electronic Design * Custom Products * Contract Assembly

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ifor
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Posted by ifor: Sun. Jan 17, 2010 - 02:50 PM
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I would guess that if you don't declare initale values for any of your eeprom data in your code then the second warning is likely to go...

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ganzziani
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Posted by ganzziani: Sun. Jan 17, 2010 - 05:41 PM
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Well, but I need the EEPROM with initialized data. You may say that if I want to preserve the EEPROM then the data is already initialized. But I need to have the default EEPROM values present in the source code.

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WLS
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Posted by WLS: Thu. Jan 21, 2010 - 05:58 PM
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Fetch them on initialization.

Bill

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