Hi Marcus Thanks for the response!!. How do I know which version of the FPGA I should use in the USRP to have no problem with the pins? I know the USRP is programmed with the FPGA image and its firmware. What is the difference between them? How do I know which version of firmware is adequate for a specific FPPA image?
Regards Isaac T. El jue, 9 sept 2021 a las 9:22, Marcus D. Leech (<patchvonbr...@gmail.com>) escribió: > On 2021-09-08 1:19 p.m., isaac mario tupac davila wrote: > > 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. > > If the sample stream is *actual* zeros, then your problem is LIKELY that > the board, at some point, got programmed with the wrong version of > the FPGA code--there have been hardware spins on the N210 that changed > the way the ADC was interfaced to the FPGA, and the FPGA code > reflects that. > > rw-r--r-- 1 root root 1297188 Aug 19 20:43 usrp_n210_r2_fpga.bin > -rw-r--r-- 1 root root 1294892 Aug 19 20:43 usrp_n210_r3_fpga.bin > -rw-r--r-- 1 root root 1299084 Aug 19 20:43 usrp_n210_r4_fpga.bin > > > > 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. >>>> >>>> >>> >> >
