Hi Neels,
On Tue, Sep 11, 2018 at 12:07:23AM +0200, Neels Hofmeyr wrote:
On Mon, Sep 10, 2018 at 03:36:43PM +0200, Keith
wrote:
but I am getting great value at the moment from
the LimeSDR-mini and
osmo-trx-lms running on x86!!
Interesting how every other dev is reporting completely different results on
lime. For some it seems to give pure satisfaction, while others seem to be but
puzzled by the sheer uselessness of it?
I think it may be related to
a) the exact LimeSuite version you're using.
b) like any SDR, the stability/calibration of the clock you use. For the mini, this
typically means using an external GPS-DO, which means you need to do a hardware
re-work of moving one resistor, as well as using LimeSuite with patch/commit
9977771c4af14731b5c2b32868b98e29ce7a3ce5
Operating any BTS without a very good clock reference (GPS-DO,
calibrated OCXO) is like playing lottery. You may get lucky some
times, with some phones, but in most cases it will fail one way or
another, in very subtle ways.
At sysmocom, it seems we have bricked all three LimeSDR-mini we have by
doing the usual gateware update using "LimeSuite master" last week or
so. And no error at all was reported during the update. The devices
simply are completely useless afterwards.
I also still have that lime mini we got on the
OsmoDevCon, still unused. Might
give it a spin then?
I also bricked my personal LimeSDR-mini by duing a LimeUtil --update to install
the "latest" gateware (from June 2018!) like the three above-mentioned at
sysmocom.
So whatever you do, I would recommend to be extremely careful with updating the firmware
aka gateware.
--
- Harald Welte <laforge(a)gnumonks.org>
http://laforge.gnumonks.org/
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