MATLAB: Warning while using ADALM-PLUTO Radio (PlutoSDR)

adalmbrokendeviceplutosdrusb

While using ADALM-PLUTO Radio (PlutoSDR),following warning is encountered:

“WARNING: Skipping broken USB device. Please upgrade libusb”.

Best Answer

The warning can be ignored, and it would have no impact on functionality.

Please refer to the following link for more information:

https://ez.analog.com/wide-band-rf-transceivers/design-support/f/q-a/105448/skipping-broken-usb-device-please-upgrade-libusb

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MATLAB: FSK and Adalm-Pluto

Hi Andrea,

The error can be solved when the variable data passed to fskDemod is type casted to double. Update the following in the code:

demodSignal=fskDemod(double(data))

The purpose of this update is due the different type provided by capture, based on the input length. Here are more details about what the data type of data would be while using the capture function of Pluto. https://www.mathworks.com/help/supportpkg/plutoradio/ref/plutoradio.sdrrxpluto.capture.html#mw_2dd7d96d-66cc-4e3d-a19a-8bcf004cf4c2 (Go through output arguments sections)

Regarding the dimensions of modSignals and data. The property 'SamplesPerSymbol' of FSKModulator decides it. The defult value is 17. So, the output length is the product of SamplesPerSymbol and length of input, i.e. 17*5 = 85. For more derails on the usage of object, go through https://www.mathworks.com/help/comm/ref/comm.fskmodulator-system-object.html

Hope this helps.

Regards,

Sriram

MATLAB: USRP Ettus B210 for 2×2 MIMO support

As of April 2015, R2015a supports MIMO with B210, X300, and X310 radios. See http://www.mathworks.com/help/supportpkg/usrpradio/release-notes.html

Best Answer

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