[hpsdr] lightning

[Bill Tracey]

Ray,

Can't say we've got any doco on debugging a dead board.  Since the PC 
does not seem to see the board 1st thing to check is what is the FX2 doing.

Check output of 3.3v regulator on Ozy -- since D12 is on you're 
getting something out of it, wonder if it's 3.3v ?
You might as well check the output of the 1.2v regulator as well.

If the 3.3V is good, Check the REST line on the FX2 -- should be hi 
(pin 99 of FX2, or pin 1 of MCP130 (u9))
If that looks good see if the FX2 clock is running -- IFCLK on Pin 32 
of the FX2

How much current are you drawing from +5 with just Ozy attacched to 
the Atlas bus?

One other thing --  are your new USB Ports USB2?    I've got no idea 
what Ozy does when presented with USB version < 2 ports

Hope this helps.

Cheers,

Bill (kd5tfd)


At 08:41 PM 6/9/2008, Ray J wrote:
>***** High Performance Software Defined Radio Discussion List *****
>
>I Had a little encounter with everybody's  good  friend Mr. Lightning...
>
>the computer PSU hooked to my HPSDR stack was zapped..  I assume thats
>how why my motherboard USB ports are also now dead...
>
>LED D12 comes on  OZY but I don't get and response when i plug Ozy 
>into my new usb ports... (the ports work with other hardware)
>
>Is there any construction/ testing documentation for Ozy?? I see a 
>bunch of test points but don't know what i should be seeing on any of them ..
>
>
>Ray J
>W9RAY



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