[En-Nut-Discussion] Dead Ethernut

[macsmaker at aol.com]

Sorry, should have included the version, 1.3g.



We have not changed any of the jumpers. Like I said, it was working fine, I uploaded a new build, and it never responded.


We are using the SP Duo (?) cable and the PC's serial port with avr-dude.


Thinking back, it's possible that I may have carelessly connected the JTAG cable to the SPI connector on the board, although I have programmed it many times.?

I know it's not the other way around becase that SPI cable is folded up such that the connector is not accessible,?to prevent this.

If this is indeed what I have done, is the board repairable? avr-dude reports the fuses are okay. I'm pretty sure the power supply is okay. I did check the power supply fuse on the board, and it is okay. Also, I believe the clock is running on the processor, but I will check this again.

I will check them per the information you provided.

Thanks,
Pete Allison



-----Original Message-----
From: Harald Kipp <harald.kipp at egnite.de>
To: Ethernut User Chat (English) <en-nut-discussion at egnite.de>
Sent: Mon, 2 Mar 2009 3:33 am
Subject: Re: [En-Nut-Discussion] Dead Ethernut




Hi Pete,

macsmaker at aol.com wrote:
> (I've never gotten a response posting here, so I'm not expecting much....)

Sorry to hear this. I checked the archive and indeed there had been a
single reply to 4 of your postings.

Please have a look to
http://lists.egnite.de/pipermail/en-nut-discussion/2008-November/thread.html
Your posts are hidden within other threads. Many people use this
threaded view with their mail clients and may overlook your posting or
worse, may consider it annoying when appearing in a wrong context.

Quoting http://www.catb.org/~esr/faqs/smart-questions.html:
"Do not simply hit reply to a list message in order to start an entirely
new thread. This will limit your audience. Some mail readers, like mutt,
allow the user to sort by thread and then hide messages in a thread by
folding the thread. Folks who do that will never see your message.
Changing the subject is not sufficient. Mutt, and probably other mail
readers, looks at other information in the e-mail's headers to assign it
to a thread, not the subject line. Instead start an entirely new e-mail."

Beside that, your last post would have gained more attention of Ethernut
1.3 users, if it would have stated, that the problem appears on this
board version.

> I have reloaded basemon.hex, but it does the same: no response on the serial 
port or the ethernet.

Using Basemon to verify board function is always the best method. But
there are still several pitfalls like the terminal emulator connection,
the fuse settings and the power supply.

Make sure, that the jumpers are correctly set, as the "Important Note" at
http://www.ethernut.de/en/hardware/enut1/index.html
explains.

To make sure that your terminal emulator is working correctly, remove
the DB9 from the Ethernut board and connect pins 2 and 3. When typing in
the emulator window, you should see an echo.

Try another power supply. Make sure it is a DC type and provides at
least 9V under load.

Check the fuse settings
http://www.ethernut.de/en/isp/fuses.html
(Sorry, I do not have the avrdude val
ues available right now, but should
be something like ext=0xff, hi=0x82 and lo=0x3f)

If all this won't help, please contact your dealer or write to info at
egnite dot de.

Harald


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