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Thomas Tsou thomastsou at gmail.comOn Mon, Jun 18, 2012 at 1:31 AM, Alexander Chemeris <alexander.chemeris at gmail.com> wrote: > Nothing really tested yet. At least you should do this steps: > ./umtrx_lms.py --lms 1 --lms-rx-enable 1 > ./umtrx_lms.py --lms 1 --lms-rx-pll-tune 925e6 > ./umtrx_lms.py --lms 1 --pll-ref-clock 26e6 --lpf-bandwidth-code 0x0f > --lms-auto-calibration > > Then you need to select Rx input with register 0x75. Should be > something like this: > ./umtrx_lms.py --lms 1 --reg 0x75 --data 0xF0 > > There are a lot of other settings for Rx fontend in LMS which I don't > understand, but I guess defaults should be fine for the start. Then we > could tune them with Andrey's help. > > If signal is too low you may need to tune Rx VGA2 gain with the > register 0x65 (refer to the programming guide for the register values > encoding). Connected a call - all seven actually. It's quite stable once setup. 'fairwaves/umtrx' branch with u2plus_umtrx-20120424.bit and following patch. I and Q were swapped. Thomas -------------- next part -------------- A non-text attachment was scrubbed... Name: 0001-transceiver-umtrx-set-timing-offset-and-swap-receive.patch Type: application/octet-stream Size: 1616 bytes Desc: not available URL: <http://lists.osmocom.org/pipermail/umtrx/attachments/20120619/d74bc56a/attachment.obj>