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Alexander Chemeris alexander.chemeris at gmail.comChoukoumoun, The question is related to the osmo-trx more than to UmTRX, so I'm moving it to the Osmocom mailing list: On Tue, Jul 15, 2014 at 8:17 PM, choukoumoun <choukoumoun at gmail.com> wrote: > Hello guys. > > I have a UMTRX my UHD/OPENBTS or UHD/OSMO-TRX same working fine but wen i > start osmo-trx and openbts i have this error Could you specify where did you get sources and which exact versions and commit numbers do you use? Did you try to use osmo-trx with Osmocom software rather than with OpenBTS? > Osmo-trx : > > linux; GNU C++ version 4.8.1; Boost_105300; UHD_003.004.000-4fa97a1 > > Config Settings > Log Level............... NOTICE > Device args............. addr=192.168.10.2 > TRX Base Port........... 5700 > TRX Address............. 127.0.0.1 > Channels................ 1 > Samples-per-Symbol...... 4 > External Reference...... Disabled > C0 Filler Table......... Disabled > Diversity............... Disabled > Tuning offset........... 0 > > -- Opening a UmTRX device... > -- Current recv frame size: 1472 bytes > -- Current send frame size: 1472 bytes > -- Setting UmTRX 4 SPS > -- Transceiver active with 1 channel(s) > > ALERT 139940970051328 02:13:33.7 UHDDevice.cpp:993:writeSamples: UHD: Device > send timed out > "Constantely" ..... > > > anybody have a idea ? > > > my usrp probe out : > > linux; GNU C++ version 4.8.1; Boost_105300; UHD_003.004.000-4fa97a1 > > -- Opening a UmTRX device... > -- Current recv frame size: 1472 bytes > -- Current send frame size: 1472 bytes > _____________________________________________________ > / > | Device: UmTRX Device > | _____________________________________________________ > | / > | | Mboard: UMTRX-REV0 > | | hardware: 64000 > | | mac-addr: 00:50:c2:85:3f:ff > | | ip-addr: 192.168.10.2 > | | gpsdo: none > | | serial: 7 > | | name: UmTRX > | | tcxo-dac: 2048 > | | > | | Time sources: none, external, _external_, mimo > | | Clock sources: internal, external, mimo > | | Sensors: ref_locked > | | _____________________________________________________ > | | / > | | | RX DSP: 0 > | | | Freq range: -6.500 to 6.500 Mhz > | | _____________________________________________________ > | | / > | | | RX DSP: 1 > | | | Freq range: -6.500 to 6.500 Mhz > | | _____________________________________________________ > | | / > | | | RX Dboard: A > | | | ID: LMS6002D (0xfa07) > | | | Serial: 7.A > | | | _____________________________________________________ > | | | / > | | | | RX Subdev: 0 > | | | | Name: LMS6002D (0xfa07) - 0 > | | | | Antennas: RX0, RX1, RX2, RX3, CAL > | | | | Sensors: lo_locked > | | | | Freq range: 232.500 to 3720.000 Mhz > | | | | Gain range VGA1: 0.0 to 126.0 step 1.0 dB > | | | | Gain range VGA2: 0.0 to 30.0 step 3.0 dB > | | | | Connection Type: IQ > | | | | Uses LO offset: No > | | | _____________________________________________________ > | | | / > | | | | RX Codec: A > | | | | Name: LMS_RX > | | | | Gain Elements: None > | | _____________________________________________________ > | | / > | | | RX Dboard: B > | | | ID: LMS6002D (0xfa07) > | | | Serial: 7.B > | | | _____________________________________________________ > | | | / > | | | | RX Subdev: 0 > | | | | Name: LMS6002D (0xfa07) - 0 > | | | | Antennas: RX0, RX1, RX2, RX3, CAL > | | | | Sensors: lo_locked > | | | | Freq range: 232.500 to 3720.000 Mhz > | | | | Gain range VGA1: 0.0 to 126.0 step 1.0 dB > | | | | Gain range VGA2: 0.0 to 30.0 step 3.0 dB > | | | | Connection Type: IQ > | | | | Uses LO offset: No > | | | _____________________________________________________ > | | | / > | | | | RX Codec: B > | | | | Name: LMS_RX > | | | | Gain Elements: None > | | _____________________________________________________ > | | / > | | | TX DSP: 0 > | | | Freq range: -6.500 to 6.500 Mhz > | | _____________________________________________________ > | | / > | | | TX DSP: 1 > | | | Freq range: -6.500 to 6.500 Mhz > | | _____________________________________________________ > | | / > | | | TX Dboard: A > | | | ID: LMS6002D (0xfa09) > | | | Serial: 7.A > | | | _____________________________________________________ > | | | / > | | | | TX Subdev: 0 > | | | | Name: LMS6002D (0xfa09) - 0 > | | | | Antennas: TX0, TX1, TX2, CAL > | | | | Sensors: lo_locked > | | | | Freq range: 232.500 to 3720.000 Mhz > | | | | Gain range VGA1: -35.0 to -4.0 step 1.0 dB > | | | | Gain range VGA2: 0.0 to 25.0 step 1.0 dB > | | | | Connection Type: IQ > | | | | Uses LO offset: No > | | | _____________________________________________________ > | | | / > | | | | TX Codec: A > | | | | Name: LMS_TX > | | | | Gain Elements: None > | | _____________________________________________________ > | | / > | | | TX Dboard: B > | | | ID: LMS6002D (0xfa09) > | | | Serial: 7.B > | | | _____________________________________________________ > | | | / > | | | | TX Subdev: 0 > | | | | Name: LMS6002D (0xfa09) - 0 > | | | | Antennas: TX0, TX1, TX2, CAL > | | | | Sensors: lo_locked > | | | | Freq range: 232.500 to 3720.000 Mhz > | | | | Gain range VGA1: -35.0 to -4.0 step 1.0 dB > | | | | Gain range VGA2: 0.0 to 25.0 step 1.0 dB > | | | | Connection Type: IQ > | | | | Uses LO offset: No > | | | _____________________________________________________ > | | | / > | | | | TX Codec: B > | | | | Name: LMS_TX > | | | | Gain Elements: None > > > I make the VCXO configuration procedure with the GPS but no success... The issue with "UHD: Device send timed out" have nothing to do with the VCXO calibration. The issue is because of a issue in communication between the host system and the UmTRX. What is your hardware setup? Particularly: - Do you use a switch between the UmTRX and the host system? - Do you run it on a real hardware or in a VM? - Is your host system powerful enough? -- Regards, Alexander Chemeris. CEO, Fairwaves, Inc. https://fairwaves.co