Hi Stephane,

Glad to see first users starting to play with UmTRX. :)

Please use OpenBTS from our repository and use branch "umtrx" instead of "master". UmTRX support is not merged into master yet. git://github.com/fairwaves/openbts-2.8 umtrx

"Failed to set master clock rate" error is thrown because it thinks you're using USRP N and tries to set frequency accordingly.

FPGA image should be the latest. You could download it here as well: http://people.osmocom.org/ipse/umtrx-v2/fpga_bitsream/2013-02-03-394f48b7/

We'll look into the FPGA compilation issue - may be Andrew forgot to check in that file. Thank you for reporting this.

On Sat, Feb 23, 2013 at 8:02 PM, stephane@shimaore.net wrote:

Hi,

I went to pick up my UmTRX this morning. \o/

It appears to start fine, but I'm hitting a couple issues trying to connect OpenBTS to it:

transceiver won't start

I get the following errors when starting OpenBTS or the transceiver:

/home/stephane/Public/src/umtrx/openbts-p2.8/apps# ./transceiver linux; GNU C++ version 4.7.2; Boost_104900; UHD_003.004.000-a52936a

ALERT 139976877029152 UHDDevice.cpp:434:open: No UHD devices found with address '' ALERT 139976877029152 runTransceiver.cpp:94:main: Transceiver exiting...

/home/stephane/Public/src/umtrx/openbts-p2.8/apps# ./transceiver linux; GNU C++ version 4.7.2; Boost_104900; UHD_003.004.000-a52936a

ALERT 139853627492128 UHDDevice.cpp:345:set_rates: Failed to set master clock rate ALERT 139853627492128 UHDDevice.cpp:346:set_rates: Actual clock rate 1.3e+07 ALERT 139853627492128 runTransceiver.cpp:94:main: Transceiver exiting...

(This is with latest UHD from git://github.com/chemeris/UHD-Fairwaves.git and latest openBTS from git://github.com/ttsou/openbts-p2.8.git )

I assume the first one ('No UHD devices...') is a transcient problem.

For the second issue I don't know whether this might be because the firmware on the unit I received might not be the latest, or because I really need to first upload the FPGA image (although I assumed ZPU wouldn't start in that case); here's the console output in any case:

USRP N210 UDP bootloader FPGA compatibility number: 8 Firmware compatibility number: 11 Production image = 0 Checking for valid production FPGA image... No valid production FPGA image found.

Valid production firmware found. Loading... Finished loading. Starting image.

TxRx-UHD-ZPU FPGA compatibility number: 8 Firmware compatibility number: 11 LMS1 chip version = 0x22 LMS2 chip version = 0x22 00:1F:11:02:19:01 192.168.10.2

FPGA compilation error

Assuming this is because of a missing/out-of-date FPGA image, I tried to compile the latest (git) FPGA firmware:

cd UHD-Fairwaves/fpga/usrp2/top/N2x0/ ; make clean ; make UmTRXv2

but got the following error:

ERROR:HDLCompiler:1654 - "/home/stephane/Public/src/umtrx/UHD-Fairwaves/fpga/usrp2/top/N2x0/u2plus_core.v" Line 734: Instantiating <rx_frontend_sw> from unknown module <frontend_sw>

A quick `git blame` points to some changes in January but I wouldn't know where to start fixing this (or maybe this is an issue with my environemnt and not the code). In case this is the environemnt, I'm using ISE 14.4 on Linux/amd64.

S.

-- Regards, Alexander Chemeris. CEO, Fairwaves LLC / ООО УмРадио http://fairwaves.ru