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Explain me why I can't see the spectrum on the spectrum analyzer under Linux?

Question asked by yahniukov on May 24, 2018
Latest reply on May 24, 2018 by larsc

Hello everyone! I'm using Vivado 2017.1.


I have downloaded and build hdl design for adrv9364z7020 project (Breakout Board LVDS). Then I connect my own RF TX IPs to dac inputs of axi_ad9361 IP (image1). Then I created no-OS project in SDK and start project on the board. As a result I can see my BPSK spectrum on the spectrum analyzer.


Then I create BOOT.bin, took ready devicetree.dtb for this board and uImage. Linux successfully launched: I can change network parameters, install some applications (for example, nano), I can see connected devices (image2) and change fields of this devices (for example TX frequency of ad9361-phy). The problem is I don't see the spectrum on the spectrum analyzer (the same .bit file as in SDK).


Is there any thought why?

 

UP: I found that my IP does not have any access to DAC, because ad9361 is managed by the program IIO Ocsilloscope. How can I delete this program from autostart?

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