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Trigger at wrong byte on SPI bus

Question asked by gerhard on Apr 21, 2017
Latest reply on Apr 26, 2017 by algoss

Hi,

I have to transfer data via SPI bus. Some times an error occurs. The characteristic is well known. The first byte of a transfer should be 0xC0, otherwise an error occoured. How can I trigger on falling edge of chip select AND first byte NOT EQUAL 0xCO?

My scope is an MSOX 3054A.

 

Thanks for helping.

 

 

With best regards

 

Gerhard

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