the output of uhd_usrp_probe --args type=b200 is
msfu@dragonos:~$ uhd_usrp_probe --args type=b200 [INFO] [UHD] linux; GNU
C++ version 9.2.1 20200304; Boost_107100; UHD_3.15.0.0-2build5 [INFO]
[B200] Detected Device: B210 [INFO] [B200] Loading FPGA image:
/usr/share/uhd/images/usrp_b210_fpga.bin... [INFO] [B200] Operating over
USB 3. [INFO] [B200] Detecting internal GPSDO.... [INFO] [GPS] No GPSDO
found [INFO] [B200] Initialize CODEC control... [INFO] [B200] Initialize
Radio control... [INFO] [B200] Performing register loopback test...
[INFO] [B200] Register loopback test passed [INFO] [B200] Performing
register loopback test... [INFO] [B200] Register loopback test passed
[INFO] [B200] Setting master clock rate selection to 'automatic'. [INFO]
[B200] Asking for clock rate 16.000000 MHz... ^[[B^[[B^[[B[INFO] [B200]
Actually got clock rate 16.000000 MHz. ^[[B^[[B^[[B
_____________________________________________________ / | Device:
B-Series Device | _____________________________________________________
| / | | Mboard: B210 | | serial: 8000545 | | name: Zhixun-wireless | |
product: 2 | | revision: 4 | | FW Version: 8.0 | | FPGA Version: 16.0 |
| | | Time sources: none, internal, external, gpsdo | | Clock sources:
internal, external, gpsdo | | Sensors: ref_locked | |
_____________________________________________________ | | / | | | RX
DSP: 0 | | | | | | Freq range: -8.000 to 8.000 MHz | |
_____________________________________________________ | | / | | | RX
DSP: 1 | | | | | | Freq range: -8.000 to 8.000 MHz | |
_____________________________________________________ | | / | | | RX
Dboard: A | | | _____________________________________________________ |
| | / | | | | RX Frontend: A | | | | Name: FE-RX2 | | | | Antennas:
TX/RX, RX2 | | | | Sensors: temp, rssi, lo_locked | | | | Freq range:
50.000 to 6000.000 MHz | | | | Gain range PGA: 0.0 to 76.0 step 1.0 dB |
| | | Bandwidth range: 200000.0 to 56000000.0 step 0.0 Hz | | | |
Connection Type: IQ | | | | Uses LO offset: No | | |
_____________________________________________________ | | | / | | | | RX
Frontend: B | | | | Name: FE-RX1 | | | | Antennas: TX/RX, RX2 | | | |
Sensors: temp, rssi, lo_locked | | | | Freq range: 50.000 to 6000.000
MHz | | | | Gain range PGA: 0.0 to 76.0 step 1.0 dB | | | | Bandwidth
range: 200000.0 to 56000000.0 step 0.0 Hz | | | | Connection Type: IQ |
| | | Uses LO offset: No | | |
_____________________________________________________ | | | / | | | | RX
Codec: A | | | | Name: B210 RX dual ADC | | | | Gain Elements: None | |
_____________________________________________________ | | / | | | TX
DSP: 0 | | | | | | Freq range: -8.000 to 8.000 MHz | |
_____________________________________________________ | | / | | | TX
DSP: 1 | | | | | | Freq range: -8.000 to 8.000 MHz | |
_____________________________________________________ | | / | | | TX
Dboard: A | | | _____________________________________________________ |
| | / | | | | TX Frontend: A | | | | Name: FE-TX2 | | | | Antennas:
TX/RX | | | | Sensors: temp, lo_locked | | | | Freq range: 50.000 to
6000.000 MHz | | | | Gain range PGA: 0.0 to 89.8 step 0.2 dB | | | |
Bandwidth range: 200000.0 to 56000000.0 step 0.0 Hz | | | | Connection
Type: IQ | | | | Uses LO offset: No | | |
_____________________________________________________ | | | / | | | | TX
Frontend: B | | | | Name: FE-TX1 | | | | Antennas: TX/RX | | | |
Sensors: temp, lo_locked | | | | Freq range: 50.000 to 6000.000 MHz | |
| | Gain range PGA: 0.0 to 89.8 step 0.2 dB | | | | Bandwidth range:
200000.0 to 56000000.0 step 0.0 Hz | | | | Connection Type: IQ | | | |
Uses LO offset: No | | |
_____________________________________________________ | | | / | | | | TX
Codec: A | | | | Name: B210 TX dual DAC | | | | Gain Elements: None
and no, there is no internal gpsdo. ;)
i am not a software developer,... i am an rf enthusiast which is playing
with dragon os, a distro for sdr.
the application i want to start is Crocodilehunter. all is running fine,
but the gps can't get no fix so the application is breaking.
i think it has to do with the communication between usrp and pll-gpsdo.
On 9/11/21 1:44 AM, Marcus D. Leech wrote:
> On 2021-09-10 6:55 p.m., msfu wrote:
>>
>>
>> what does a command look like to set clock and time_source to external?
> Setting the clock configuration is something that every application
> that uses a USRP has to do
> as part of establishing a session with the USRP device.
>>
>> i don*t really know how to handle API Calls.
> So, you're not really a software developer, but are using some
> *APPLICATION* that happens
> to use USRPs? What is the application? There are hundreds and
> hundreds of SDR-using
> applications out in the field that use USRPs and other SDRs. We
> can't possibly tell you
> how to use and configure each of those.
>
> That *application* would need to provide a way to configure the clock
> and 1PPS sources when
> it starts a session with the device.
>>
>> I am trying to set the external gpsdo with 10MHz and 1PPS as time and
>> clock source for my GPS because its far more exactly so far as i know..
> Please share with us the output of:
>
> uhd_usrp_probe --args type=b200
>
>
>>
>> do i really have to disconnect the internal gpsdo? can't i even change
>> the source on software base?
> Yes, like I said, the 10MHz line is shared, and there's no way to have
> the hardware do the right thing
> if you have an internal GPSDO and want to use an external clock. If
> you have an *internal* GPSDO, there's
> ZERO need to use an external one unless you need to share 1PPS and
> 10MHz clock among multiple
> devices. It doesn't sound like you need that. The output of
> uhd_usrp_probe will tell us some things, like
> whether you actually have an on-board GPSDO or not.
>
>
>>
>> thank you
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>>>
>>>> thanks in advance
>>>> _______________________________________________
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>>> _______________________________________________
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>> _______________________________________________
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> _______________________________________________
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