Author Topic: target board ethernet not working  (Read 3873 times)

Offline alager

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target board ethernet not working
« on: November 24, 2008, 07:02:46 PM »
I just finished the simulator part of the tutorial and it all worked fine, after a few SP8 discrepancies were straightened out.
Now I am trying to get the target board, 52235evb, going, and I get LED1 blinking from the watchdog, and a few blinks of the ACT LED, but that is it.  The ethernet doesn't appear to be getting started, or something.  The link LED on the evb and on the hub are not lit.

I know my hardware is good, because it works with the Freescale software.

I'm using codewarrior 7.0 build 15
uTasker 1.3.0 SP8

I'm not even sure where to start looking.
Thanks for any help,
Aaron

Offline mark

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Re: target board ethernet not working
« Reply #1 on: November 24, 2008, 07:49:09 PM »
Hi Aaron

This may be the auto-negotiation bug in the Coldfire. Check the tutorial for details (page 16/34) and try a fixed LAN speed (rather than auto-negotiation) to verify this. The Freescale example may have fixed speed set or it possibly polls in order to avoid it - see also the following:
http://www.utasker.com/forum/index.php?topic=254.0

Regards

Mark

Offline alager

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Re: target board ethernet not working
« Reply #2 on: November 24, 2008, 07:52:53 PM »
Hmmm...This will need to be solved, but for now turning off auto negotiate and forcing it to LAN_100M works.

Aaron