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bvernoux avatar bvernoux commented on August 22, 2024

Could you test with latest firmware rc6 ?
This problem with 32 boards found seems related to a bug in an old version of libusb to be confirmed versus Ubuntu 14.04 LTS which works fine

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akhenakh avatar akhenakh commented on August 22, 2024

Same issue with latest firmware :/

I'll try to investigate a bit further.

Found AirSpy board 32
Board ID Number: 0 (AIRSPY)
Firmware Version: AirSpy NOS v1.0.0-rc6-0-g035ff81 2015-07-14
Part ID Number: 0x6906002B 0x00000030
Serial Number: 0x16C4XXXXXx
Supported sample rates:
    10.000000 MSPS
    2.500000 MSPS
Close board 32

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bvernoux avatar bvernoux commented on August 22, 2024

It will be interesting to find the root cause of this issue even if it is not blocker as we can use correctly airspy the bad effect is I doubt multiple board work fine with this bug.
Could you test airspy_rx -r /dev/null -t 0 to see if it work fine ?
and also with -t 1, 2, 3 and 4 running during at least 30s

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akhenakh avatar akhenakh commented on August 22, 2024

It doesn't seem to act properly,

On Linux same hardware, it goes around 3MSPS with no linearity.
Probably here it doesn't receive any signal.

Streaming at 10.00 MSPS
Streaming at 10.00 MSPS
Streaming at 10.00 MSPS
Streaming at  8.10 MSPS
Streaming at  8.10 MSPS
Streaming at  8.10 MSPS
Streaming at  8.10 MSPS
Streaming at  8.10 MSPS
Streaming at  8.10 MSPS
Streaming at  6.58 MSPS
Streaming at  6.58 MSPS
Streaming at  6.58 MSPS
Streaming at  6.58 MSPS
Streaming at  6.58 MSPS
Streaming at  6.58 MSPS
Streaming at  6.58 MSPS
Streaming at  5.37 MSPS
Streaming at  5.37 MSPS
Streaming at  5.37 MSPS
Streaming at  5.37 MSPS
Streaming at  5.37 MSPS
Streaming at  5.37 MSPS
Streaming at  4.40 MSPS
Streaming at  4.40 MSPS
Streaming at  4.40 MSPS
Streaming at  4.40 MSPS
Streaming at  4.40 MSPS
Streaming at  4.40 MSPS
Streaming at  3.62 MSPS
Streaming at  3.62 MSPS
q^CCaught signal 2

User cancel, exiting...
Total time: 34.1621 s
Average speed 5.6163 MSPS IQ

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bvernoux avatar bvernoux commented on August 22, 2024

Could you check on same computer with Ubuntu 14.04 to check if all work fine ? (as you could have issue with your computer too)

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 avatar commented on August 22, 2024

I've done some experiment to make airspy works on FreeBSD (rasperry).

@akhenakh The Raspberry Pi is probably the worst hardware that you could possibly choose to try and debug problems on. It's USB port performance is sub-optimal, especially if you are connecting to it over the network as it is using the same, one and only real, USB port for that as well. If you were testing at 2.5MSPS it might possibly be OK or if you are using something like the following to test "airspy_rx -r /dev/null -p 1"

If I was trying to write patches to get the Airspy to work under *BSD, I'd probably start by looking at what was done to get the HackRF One working.
http://svnweb.freebsd.org/ports/head/comms/hackrf/
The original code base for the Airspy was derived from the HackRF code, but most things have changed a lot. But if someone is able to get the HackRF working under *BSD by modifying two Cmake files, then it should be a similar level of difficulty to getting the Airspy library and host tools working natively under *BSD.

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akhenakh avatar akhenakh commented on August 22, 2024

I haven't tried it again recently.
Same raspberry pi hw (at least 2 if I remember correctly) was capable of handling the 10MSPS of the airspy, so BSD* on same hw should probably do it too.
thanks for the infos I may give it another shot some days!

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bvernoux avatar bvernoux commented on August 22, 2024

Do you have any update about that ?

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bvernoux avatar bvernoux commented on August 22, 2024

Added Support FreeBSD #50 thanks to @Unitrunker contribution
Any feedback is welcome

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