[En-Nut-Discussion] RE: En-Nut-Discussion Digest, Vol 14, Issue 15

[David BALDWIN]

------------------------------

 

Message: 6

Date: Tue, 14 Dec 2004 15:36:48 -0500

From: Alex Jacques <alexj at pulver.com>

Subject: Re: [En-Nut-Discussion] Debugging with JTAG

To: "Ethernut User Chat (English)" <en-nut-discussion at egnite.de>

Message-ID: <41BF4EE0.2030401 at pulver.com>

Content-Type: text/plain; charset=us-ascii; format=flowed

 

> I am trying to debug with Avr Studio 4.10 and JTAG. I am using the COF
file. It

> works perfectly, for the sources of the project, but not for the Nut/Net
and

> Nut/OS coming out of the library. Is there a way to tell the compiler to

> include debug information for those also?

 

When using nutconf, go to "Nut O/S Components" => "Tools" => "GCC 

Settings" => "Include debug info" and make sure the box is checked.

 

Then rebuild NutOS.

 

BTW, there is a beta AvrStudio that accepts ELF format files with 

-gdwarf-2 debug info. I find this works better. See 

http://www.atmel.no/beta_ware/ and install build 356 and then the build 

359 update. If you do this change the value for "include debug info" to 

"-gdwarf-2". Create programs with "make program.elf".

 

> I am trying to preserve the eeprom, but the flag removes itself each time
I am

> flashing. Is there something I am missing? Also, what is the better way to

> reprogram the eeprom content? I found thet with the simple monitor, this
works

> but this is not the easyest process I assume?

 

When you start AvrStudio and select an elf or cof file for debugging, 

check "Open Platform Options" on the "Select debug platform and device" 

popup. You then get a "JTAG ICE" popup. Go to the "Debug" tab and select 

"Preserve EEPROM Contents". You can also get to this via the main 

window's "Debug" => "Select platform and device".

 

This drove me nuts until I finally stumbled across it.

 

 

Thanks a lot.

I found this flag today also... it is working. Both flags have to be set in
order for the eeprom to stay programmed.

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