Részlet az adatlapból (a CS láb induláskori állapota adja meg, hogy SPI vagy I2C módban legyen a szenzorod):
6.1 Interface selection
Interface selection is done automatically based on CSB (chip select) status. If CSB is connected to VDDIO, the I2C interface is
active. If CSB is pulled down, the SPI interface is activated. After CSB has been pulled down once (regardless of whether
any clock cycle occurred), the I2C interface is disabled until the next power-on-reset. This is done in order to avoid
inadvertently decoding SPI traffic to another slave as I2C data. Since the device startup is deferred until both VDD and VDDIO
are established, there is no risk of incorrect protocol detection because of the power-up sequence used. However, if I2C is to
be used and CSB is not directly connected to VDDIO but is instead connected to a programmable pin, it must be ensured that
this pin already outputs the V DDIO level during power-on-reset of the device. If this is not the case, the device will be locked
in SPI mode and not respond to I2C commands.
azonban már találkoztam a magasba vagy alacsonyra húzni a lábát kifejezéssel, de nem tudom, hogy itt ebben a szenzor esetében mit jelent. :-(
Magasra/ba húzni = logikai magas jelszinttel (kézenfekvően tápfesz) összeköztni, alacsonyra: logikai alacsony jelszinttel összekötni (GND-re)
Tehát kösd a 3.3V-ra (modulodon a VIN láb)