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Support for the Mirics chipset SDR boards

Started by alanVK2ZIW, Feb 18, 2025, 07:11 AM

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alanVK2ZIW

I have several of these "Simple SDR" or BG7YZF boards, clones of the SDRPlay RSP1 (original) boards.

Simply, they put the Mirics chipset onto a PCB. As many others do with the RTL_SDR chipset.

These are supported by the, in PhantomSDR+ limmirisdr-5 library.

BUT, the data format out of "miri_sdr" does not work when fed into spectrumserver.

This is typical data:
0000000 01a0 03e0 01d0 03b0 01a0 0360 0180 03b0
0000020 01c0 0390 01c0 0390 01b0 03c0 0190 03a0

It is 12bit data where the bit 0x0200 is in the "wrong" place.
Values centered around 512, going up and down.

To get OpenWebRX working, I subtract 512 from every data 16bit word.
To produce signed 16bit numbers.

Can somebody please modify miri_sdr, and fix this?
(and, add a command line option)

Alan

Bas ON5HB

These are illegal Chinese clones.

SDRplay owns Mirics but China copies the chips and boards.

You have to ask the maker of the driver if he's willing to support those.
PhantomSDR is not maker of drivers.

Sorry mate. I have to close this topic. As I do not want troubles with SDRplay.
Best regards,

Bas ON5HB

Ps. the Community Edition can be found here: https://github.com/ny4qphil/PhantomSDR-Plus

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