I’ve read your report with the oscillogram with great interest. In fact, the data sheet does not explain how the WURQ can be generated. The pulse strength after an I2C command depends on the pre-flight voltage at C/Q and therefor it is useless as WURQ. After many attempts, I found a solution. I have tested it with the inductive sensor AI402. The effect is reproducible, but I am not sure how it works. What was your solution? It is ST's responsibility to make this clear in the data sheet.
