On 2022-08-15 10:47, Dave NotTelling wrote:
Marcus,
It was crazy cheap (~$650), and reflashing on power up isn't hard
:) It's a fun toy for learning about RFNoC and just FPGA fun in
general. Came with two 40 MHz WBX boards. Is there a part number for
the flash? Is it something that can be popped off with a hot air
gun? I think it did come up on its own once. Curious if it just
needs to be reflowed.
The schematics are here:
https://files.ettus.com/schematics/x300/
It does seem to have a working EEPROM since I can change the IP
address.
I also noticed that both WBX boards have nasty spur looking tones
for several hundred MHz in the lower range of the WBX. Is it possible
that there are issues on the motherboard that could cause those
issues? I have a proper power supply arriving today to replace the
ATX computer supply I have been testing with (12 Volt)
Could very well be clock issues or other things in the standard
daughtercard interface that are unexpectedly noisy.
Do they go away if you terminate the inputs?
Thanks!
-Dave
On Mon, Aug 15, 2022 at 10:41 AM Marcus D. Leech
<patchvonbr...@gmail.com> wrote:
On 2022-08-15 10:34, Dave NotTelling wrote:
> Apologies if this is a repost. I don't think my original
message made
> it to the list for some reason.
>
> I recently got my hands on a used x310. It seems to work well, but
> for some reason will not boot on its own. Vivado hardware manager
> shows the device as not being programmed, and the network
interfaces
> don't come up (no lights on the SFPs). If I reflash the device with
> Vivado it will come up and work as expected. Is there a way to
test
> the flash chip to see if it's alive? Running uhd_image_loader
seems
> to work fine, but the device still will not come up automatically.
>
> Thanks!
>
> -Dave
>
>
This does sound like a FLASH issue. I hope you didn't pay that
much for
it...
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