ADXL357 SPI Issue

Hello,

I am using the SPI interface with a 1 MHz clock on the ADXL357B.

The hardware is similar to ADXL357 application circuit on page 21 of the datasheet.

The INT1, INT2 and DRDY are left open.

I can readout all register with their reset values. When I write to a R/W register, I get back only the reset value.

For example I write 0x00 to the register 0x2D to leave standby (start measuring) - but readout is 0x01.

What have I to consider for the hard- and software to get the chip running. Are there software examples available?

 

Thank you in advance