LPS22HH DCR value is 0x00

[Frankly]

I got the DCR form LPS22HH value is 0x00, but the BCR and TPID value all matched the datasheet except the DCR, and the waveforms as follow:

 Based on the feature showed in LPS22HH datasheet, the DCR should be 0x62

but according to the DCR table (details table in MIPI : https://www.mipi.org/MIPI_I3C_device_characteristics_register), all version1.0 device DCR is 0x00.

I don't known what's the current I3C version included in LPS22HH sensor. Can anyone help me clarify it?

Sorry to @Foued_KH again.

[Foued_KH]

Hello @Frankly , 

For the DCR value, you need to align it with the value in the datasheet of the LPS22HH : 

There is no need to know the I3C version for this sensor; just follow the commands supported in the datasheet.

In my opinion, You need to check the decoding parameters for the tool being used.

Thank you!
Foued

 

 

[Frankly]

I don't think the decode tool's parameter is incorrect, before GETDCR,  the host send GETBCR(0x8E) to get the correct BCR(0x07), the correct waveform as follow:

according the waveform of GETDCR, the GETDCR Byte is 0 after Target Addr ACK

so @Foued_KH could you please show the correct waveform of GETDCT on lps22hh?

 

[Frankly]

@Foued_KH , could you please help look into the issue?

[Frankly]

@Federica Bossi  could you please help look into this issue, because I haven't seen Foued online for two months.