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LIS2DTW12 who-am-i does not return a value

AAoe.1
Associate II

Do you see anything wrong with this 4-wire spi transaction? The LIS2DTW12 is not responding and I do not understand why. It is hooked up to a P-NUCLEO-W55

1 REPLY 1
Ozone
Lead II

> Do you see anything wrong with this 4-wire spi transaction?

No, how should we ?

Have you tried a scope ?

Check the schematics.

Many of STs boards used to have the interface fixed to I2C, not SPI.