Spectrum Analyser Freezing on RFSoC2x2 - PYNQ v2.7

[dnorthcote]

From duddekk on a pynq.io post here: https://discuss.pynq.io/t/rfsoc2x2-adc-configuration-and-testing/3819

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Hi,
I am experiencing strange behavior of the spectrum analyzer overlay implemented with the RFSoC2x2 module. Regardless of whether the inputs are connected or not, I observe a signal about 100 MHz wide on the spectrum. I am using a standard, freshly installed image version 2.7.
Additionally, when I turn on the spectrum analyzer, the program stops working. The spectrogram cannot be turned on. The signal spectrum is static, it does not refreshing.
For comparison, I have no such problems on the ZCU111 module.
Are there any additional tools to verify correct operation of the module?

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