Hi It seems the problem is the Rx daughterboard because I changed the USRP, used the same flowgraph in GRC and it has worked.
Thanks for the help. Regards Isaac T. El lun, 6 sept 2021 a las 17:53, Marcus D. Leech (<patchvonbr...@gmail.com>) escribió: > On 2021-09-06 5:33 p.m., isaac mario tupac davila wrote: > > Hi > > I've probed A:A, A:B, A:AB, A:BA and had the same behavior. Doesn't change. > > regards > Isaac T > > > This should make NO DIFFERENCE, but what version of Gnu Radio are you > using? > > The fact that you're using WX GUI bits and pieces probably means something > somewhat old. > > The "modern" approach would be to use Qt GUI elements that do very similar > things to what > the (deprecated for quite some time) WX GUI bits and pieces do. > > > > El lun, 6 sept 2021 a las 15:43, Marcus D. Leech (<patchvonbr...@gmail.com>) > escribió: > >> On 2021-09-06 3:24 p.m., isaac mario tupac davila wrote: >> >> Hi. >> -- The daughterboard is the BasicRX Daughterboard. >> -- I put the address of my USRP as 192.168.10.1 >> >> ****************************************************************************************************** >> soporte@i28:~$ ping 192.168.10.1 >> PING 192.168.10.1 (192.168.10.1) 56(84) bytes of data. >> 64 bytes from 192.168.10.1: icmp_seq=1 ttl=64 time=0.051 ms >> 64 bytes from 192.168.10.1: icmp_seq=2 ttl=64 time=0.051 ms >> 64 bytes from 192.168.10.1: icmp_seq=3 ttl=64 time=0.049 ms >> >> ****************************************************************************************************** >> soporte@28:~$ uhd_usrp_probe --args type=n200 >> >> Try setting a subdev spec of: >> >> A:A >> >> >> Error: LookupError: KeyError: No devices found for -----> >> Device Address: >> type: n200 >> >> ******************************************************************************************************* >> soporte@28:~$ uhd_find_devices >> [INFO] [UHD] linux; GNU C++ version 7.5.0; Boost_106501; >> UHD_3.14.1.1-0-g7c0291ad >> -------------------------------------------------- >> -- UHD Device 0 >> -------------------------------------------------- >> Device Address: >> serial: 3176CEA >> addr: 192.168.10.2 >> name: >> type: usrp2 >> >> ******************************************************************************************************* >> soporte@28:~$ uhd_usrp_probe >> [INFO] [UHD] linux; GNU C++ version 7.5.0; Boost_106501; >> UHD_3.14.1.1-0-g7c0291ad >> [INFO] [USRP2] Opening a USRP2/N-Series device... >> [INFO] [USRP2] Current recv frame size: 1472 bytes >> [INFO] [USRP2] Current send frame size: 1472 bytes >> [WARNING] [USRP2] Unable to identify device - assuming USRP2/N-Series >> device >> [WARNING] [UHD] Unable to set the thread priority. Performance may be >> negatively affected. >> Please see the general application notes in the manual for instructions. >> EnvironmentError: OSError: error in pthread_setschedparam >> _____________________________________________________ >> / >> | Device: USRP2 / N-Series Device >> | _____________________________________________________ >> | / >> | | Mboard: N??? >> | | mac-addr: 00:2c:00:00:00:24 >> | | ip-addr: 0.0.0.0 >> | | subnet: 0.0.0.0 >> | | gateway: 255.255.255.255 >> | | gpsdo: none >> | | serial: 3176CEA >> | | FW Version: 12.3 >> | | FPGA Version: 10.0 >> | | >> | | Time sources: none, external, _external_, mimo >> | | Clock sources: internal, external, mimo >> | | Sensors: mimo_locked, ref_locked >> | | _____________________________________________________ >> | | / >> | | | RX DSP: 0 >> | | | >> | | | Freq range: -50.000 to 50.000 MHz >> | | _____________________________________________________ >> | | / >> | | | RX DSP: 1 >> | | | >> | | | Freq range: -50.000 to 50.000 MHz >> | | _____________________________________________________ >> | | / >> | | | RX Dboard: A >> | | | ID: Basic RX (0x0001) >> | | | Serial: 315A5DF >> | | | _____________________________________________________ >> | | | / >> | | | | RX Frontend: AB >> | | | | Name: BasicRX (AB) >> | | | | Antennas: >> | | | | Sensors: >> | | | | Freq range: -250.000 to 250.000 MHz >> | | | | Gain Elements: None >> | | | | Bandwidth range: 500000000.0 to 500000000.0 step 0.0 Hz >> | | | | Connection Type: IQ >> | | | | Uses LO offset: No >> | | | _____________________________________________________ >> | | | / >> | | | | RX Frontend: BA >> | | | | Name: BasicRX (BA) >> | | | | Antennas: >> | | | | Sensors: >> | | | | Freq range: -250.000 to 250.000 MHz >> | | | | Gain Elements: None >> | | | | Bandwidth range: 500000000.0 to 500000000.0 step 0.0 Hz >> | | | | Connection Type: QI >> | | | | Uses LO offset: No >> | | | _____________________________________________________ >> | | | / >> | | | | RX Frontend: A >> | | | | Name: BasicRX (A) >> | | | | Antennas: >> | | | | Sensors: >> | | | | Freq range: -250.000 to 250.000 MHz >> | | | | Gain Elements: None >> | | | | Bandwidth range: 250000000.0 to 250000000.0 step 0.0 Hz >> | | | | Connection Type: I >> | | | | Uses LO offset: No >> | | | _____________________________________________________ >> | | | / >> | | | | RX Frontend: B >> | | | | Name: BasicRX (B) >> | | | | Antennas: >> | | | | Sensors: >> | | | | Freq range: -250.000 to 250.000 MHz >> | | | | Gain Elements: None >> | | | | Bandwidth range: 250000000.0 to 250000000.0 step 0.0 Hz >> | | | | Connection Type: Q >> | | | | Uses LO offset: No >> | | | _____________________________________________________ >> | | | / >> | | | | RX Codec: A >> | | | | Name: ?????? >> | | | | Gain Elements: None >> | | _____________________________________________________ >> | | / >> | | | TX DSP: 0 >> | | | >> | | | Freq range: -200.000 to 200.000 MHz >> | | _____________________________________________________ >> | | / >> | | | TX Dboard: A >> | | | _____________________________________________________ >> | | | / >> | | | | TX Frontend: 0 >> | | | | Name: Unknown (0xffff) - 0 >> | | | | Antennas: >> | | | | Sensors: >> | | | | Freq range: 0.000 to 0.000 MHz >> | | | | Gain Elements: None >> | | | | Bandwidth range: 0.0 to 0.0 step 0.0 Hz >> | | | | Connection Type: IQ >> | | | | Uses LO offset: No >> | | | _____________________________________________________ >> | | | / >> | | | | TX Codec: A >> | | | | Name: ad9777 >> | | | | Gain Elements: None >> >> [WARNING] [UHD] Unable to set the thread priority. Performance may be >> negatively affected. >> Please see the general application notes in the manual for instructions. >> EnvironmentError: OSError: error in pthread_setschedparam >> [WARNING] [UHD] Unable to set the thread priority. Performance may be >> negatively affected. >> Please see the general application notes in the manual for instructions. >> EnvironmentError: OSError: error in pthread_setschedparam >> >> **************************************************************************************************************** >> >> I'm not completely sure what is happening. it seems I have an USRP2. I >> put it wit address 192.168.10.1, but when I run uhd_find_devices is with >> 192.168.10.2 >> ¿Could be that? >> >> Isaac T. >> >> >> >> El lun, 6 sept 2021 a las 13:22, Paul Boven (<p.bo...@xs4all.nl>) >> escribió: >> >>> Hi Isaac, >>> >>> On 9/6/21 6:02 PM, isaac mario tupac davila wrote: >>> > I'm Isaac. I am trying to discover what is happening with my USRP >>> N200. >>> > I'm sending a signal of 100mVpp and 1MHz from a signal generator to >>> > channel RF 2 of my USRP N200 but I receive a 0v signal and a constant >>> > -230db (if I see it in a FFT block). >>> >>> Please include which RX daughterboard you are using with the N200? What >>> is RF2 connected to internally in the USRP? Does channel RF1 work for >>> you? >>> >>> In your flowchart, you're using a center frequency of 1 MHz with a >>> sampling rate of 10 MS/s, which is a bit odd, although it shouldn't >>> prevent you from seeing the signal. >>> >>> Your scope plot and FFT plot look as if you're not receiving anything, >>> not even noise. >>> >>> You should probably first of all verify whether your PC can even talk to >>> the USRP properly, e.g. by running 'uhd_find_devices' and >>> 'uhd_usrp_probe'. >>> >>> Regards, Paul Boven. >>> >>> >> >
