Hi @SLEWI.1 ,
supposing that the I2C is correctly working (i.e. you are receiving an ACK), did you first check the WHO_AM_I (0Fh) register value, that should be 44h?
If so, you need to configure at least the ODR (and the FS) registers. You can refer for example to the C code on Github --> ais2dw12_read_data_polling.c.
The ODR allows data to be available on dataout pad: if you don't configure this, you will not able to see any data (and any DRDY signal).
Here the C code for a complete configuration: power mode and ODR configurations are the most important for starting the device operation.
/* Enable Block Data Update */
ais2dw12_block_data_update_set(&dev_ctx, PROPERTY_ENABLE);
/* Set full scale */
ais2dw12_full_scale_set(&dev_ctx, AIS2DW12_2g);
/* Configure filtering chain
* Accelerometer - filter path / bandwidth */
ais2dw12_filter_path_set(&dev_ctx, AIS2DW12_LPF_ON_OUT);
ais2dw12_filter_bandwidth_set(&dev_ctx, AIS2DW12_ODR_DIV_4);
/* Configure power mode */
ais2dw12_power_mode_set(&dev_ctx, AIS2DW12_PWR_MD_12bit);
/* Set Output Data Rate */
ais2dw12_data_rate_set(&dev_ctx, AIS2DW12_XL_ODR_25Hz);
If you then want to read synchronously, you have to enable the INT1_ DRDY of the CTRL4_INT1 (23h) register, or if you just want to monito it you have to read in polling mode the DRDY bit of STATUS (27h) register.
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-Eleon
