[hpsdr] no ethernet TX

[k3it]

thanks for suggestions, on and off list.  I'm still trying to troubleshoot
this..

Does anybody know what level TXD0 (pin 50 on FPGA) pulses should be?  I'm
getting only 0.6 V and I wonder if there is a short somewhere.  The pin
next to it, TXD1, has 3.3 V pulses.  I've removed the Micrel chip now and
will try to solder a new one.  I hope nothing is wrong with the FPGA output
pin.  That would be a real bummer.


73
Vasiliy


On Fri, Jun 7, 2013 at 2:18 PM, Joe Martin K5SO <k5so at valornet.com> wrote:

>
> Hi Vasiliy,
>
> Sometimes a reheating of the FPGA and PHY chip pins with a hot air rework
> tool cures such problems.   As the board apparently did work successfully
> for a while before failing a reheat of the pin connections might prove
> successful in restoring proper operation for you.
>
> If a hot air tool is not available then judicious use of a fine tip
> soldering iron might work but hot air is better if you can manage it as a
> hot air tool is less likely to produce solder shorts between pins.
>
> 73,  Joe K5SO
>
>
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/attachments/20130610/a4a41839/attachment-0004.htm>