Hi MT, Thanks for sharing that. It seems clear that the GUI is stuck since it is not receiving an acknowledgement from the microcontroller on the EVM. Are you simply monitoring the SPI bus, or are you trying to control the ADS131A04 with an external microcontroller? Are all jumpers/switches still in their default position according to page 4 of the User Guide? Can you please disconnect the bus monitor, disconnect/reconnect the EVM USB cable, and then restart the GUI and run the 'Basic startup' script? Best Regards,
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