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Forum Post: RE: ADS131A04EVM: SPI Bus Monitoring using J3

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Hi, I am just trying to monitor the SPI bus. I'm not trying to control it (yet). all jumpers are in the default positions. i can disconnect (or press the the 'reset' buttons for the microprocessor and ADC) and run the basic script. Everything works fine if nothing is connected to J3. J3 Pin 7 (CS) is especially sensitive, any connection (scope, bus monitor) will cause the EVM to hang Thanks for your help

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