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I2C Trigger for Protocol-Error ... (new feature proposal)


Rolf_K

Question

I assume that it should be possible to create an I2C Trigger on an I2C-protocol-error, as you can detect such an event on the Protocol Analyzer's instrument.

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If so this could be done in the protocol trigger menu with an Error-Entry.

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This would be helpful to trigger directly on the searched error-event and analyze the error on the Logic Analyzer and/or the Scope/digital/I2C.

Would this be possible ?

Thanks in advance !

Edited by Rolf_K
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Hi @Rolf_K

It is not really possible to trigger on error in Logic Analyzer since these can be various conditions.
You could eventually trigger on pulse longed than expected on SCL or SDA, detect bus lock...

The error listed in the Protocol tool are probably due to glitch on the spy wires.
Check the "FreqFilter" option, make sure to have GND connection between circuit and AD, use twisted wires signal/GND...

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