I guess I should have debugged a bit longer before posting. The problem has been solved. Once I entered in "[0,1]" into the Stream Channels text box in the USRP Source element in my GRC flow graph, both channels began receiving. Thanks.
On Tue, Feb 19, 2019 at 9:50 AM Mike Johnson <[email protected]> wrote: > I have an X310 with two UBX-160 v2 daughter cards installed. I've built a > single channel GRC flow graph, using Subdev Spec of "A:0" then "B:0", to > confirm that each of the daughter cards receives correctly. However, when > I increase the Num Channels from 1 to 2 in GRC, and use a Subdev Spec of > "A:0 B:0", I get this error: > > RuntimeError: LookupError: IndexError: multi_usrp: RX channel > 139784932838560 out of range for configured RX frontends > > I am using GNURadio version: 3.8tech-preview-215-g7e5396b2 > > I am using UHD version: UHD_3.14.0.0-0-gd20a7ae2 > > I'm attempting to build a dual-channel satellite surrogate system. Any > assistance is greatly appreciated. > > > Output of uhd_usrp_probe is as follows: > > / > | Device: X-Series Device > | _____________________________________________________ > | / > | | Mboard: X310 > | | revision: 11 > | | revision_compat: 7 > | | product: 30818 > | | mac-addr0: 00:80:2f:24:1a:86 > | | mac-addr1: 00:80:2f:24:1a:87 > | | gateway: 192.168.10.1 > | | ip-addr0: 192.168.10.2 > | | subnet0: 255.255.255.0 > | | ip-addr1: 192.168.20.2 > | | subnet1: 255.255.255.0 > | | ip-addr2: 192.168.30.2 > | | subnet2: 255.255.255.0 > | | ip-addr3: 192.168.40.2 > | | subnet3: 255.255.255.0 > | | serial: 317A1EE > | | FW Version: 6.0 > | | FPGA Version: 36.0 > | | FPGA git hash: 4f25ed1 > | | RFNoC capable: Yes > | | > | | Time sources: internal, external, gpsdo > | | Clock sources: internal, external, gpsdo > | | Sensors: ref_locked > | | _____________________________________________________ > | | / > | | | RX Dboard: A > | | | ID: UBX-160 v2 (0x007e) > | | | Serial: 3176381 > | | | _____________________________________________________ > | | | / > | | | | RX Frontend: 0 > | | | | Name: UBX RX > | | | | Antennas: TX/RX, RX2, CAL > | | | | Sensors: lo_locked > | | | | Freq range: 10.000 to 6000.000 MHz > | | | | Gain range PGA0: 0.0 to 31.5 step 0.5 dB > | | | | Bandwidth range: 160000000.0 to 160000000.0 step 0.0 Hz > | | | | Connection Type: IQ > | | | | Uses LO offset: No > | | | _____________________________________________________ > | | | / > | | | | RX Codec: A > | | | | Name: ads62p48 > | | | | Gain range digital: 0.0 to 6.0 step 0.5 dB > | | _____________________________________________________ > | | / > | | | RX Dboard: B > | | | ID: UBX-160 v2 (0x007e) > | | | Serial: 3176382 > | | | _____________________________________________________ > | | | / > | | | | RX Frontend: 0 > | | | | Name: UBX RX > | | | | Antennas: TX/RX, RX2, CAL > | | | | Sensors: lo_locked > | | | | Freq range: 10.000 to 6000.000 MHz > | | | | Gain range PGA0: 0.0 to 31.5 step 0.5 dB > | | | | Bandwidth range: 160000000.0 to 160000000.0 step 0.0 Hz > | | | | Connection Type: IQ > | | | | Uses LO offset: No > | | | _____________________________________________________ > | | | / > | | | | RX Codec: B > | | | | Name: ads62p48 > | | | | Gain range digital: 0.0 to 6.0 step 0.5 dB > | | _____________________________________________________ > | | / > | | | TX Dboard: A > | | | ID: UBX-160 v2 (0x007d) > | | | Serial: 3176381 > | | | _____________________________________________________ > | | | / > | | | | TX Frontend: 0 > | | | | Name: UBX TX > | | | | Antennas: TX/RX, CAL > | | | | Sensors: lo_locked > | | | | Freq range: 10.000 to 6000.000 MHz > | | | | Gain range PGA0: 0.0 to 31.5 step 0.5 dB > | | | | Bandwidth range: 160000000.0 to 160000000.0 step 0.0 Hz > | | | | Connection Type: QI > | | | | Uses LO offset: No > | | | _____________________________________________________ > | | | / > | | | | TX Codec: A > | | | | Name: ad9146 > | | | | Gain Elements: None > | | _____________________________________________________ > | | / > | | | TX Dboard: B > | | | ID: UBX-160 v2 (0x007d) > | | | Serial: 3176382 > | | | _____________________________________________________ > | | | / > | | | | TX Frontend: 0 > | | | | Name: UBX TX > | | | | Antennas: TX/RX, CAL > | | | | Sensors: lo_locked > | | | | Freq range: 10.000 to 6000.000 MHz > | | | | Gain range PGA0: 0.0 to 31.5 step 0.5 dB > | | | | Bandwidth range: 160000000.0 to 160000000.0 step 0.0 Hz > | | | | Connection Type: QI > | | | | Uses LO offset: No > | | | _____________________________________________________ > | | | / > | | | | TX Codec: B > | | | | Name: ad9146 > | | | | Gain Elements: None > | | _____________________________________________________ > | | / > | | | RFNoC blocks on this device: > | | | > | | | * DmaFIFO_0 > | | | * Radio_0 > | | | * Radio_1 > | | | * DDC_0 > | | | * DDC_1 > | | | * DUC_0 > | | | * DUC_1 > >
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