How can connect to my S2-LP register with S2-LP DK tools

[BMoha.19]

Hi

I need to export configuration from my S2-LP soldered on my board. I succeed to export S2-LP in eval board using S2-LP DK tools, but, i can't display S2-LP register soldered on my borad (can't connect to my board with S2-LP DK tools). Is there a specific configuration for that?

Thanks in advance.

[Winfred LU]

Hi nasramine,

Please check SPI connection and SDN.

During start-up, SDN must be kept high for at least 1 ms.

Please refer to datasheet, Figure 7:

https://www.st.com/resource/en/datasheet/s2-lp.pdf

Best Regards,

Winfred

[BMoha.19]

Hi Winfred,

Thanks for your quick answer.

During start-up, SDN was kept high for 1,485 ms as mentioned on below measurement:

When i try to connect with S2-LP DK tools to my board (based on STM32L0xx) i have below problem:

Any proposal for the problem please?

Best Regards,

Mohamed Amine

[Winfred LU]

Hi Mohamed,

Could you please firstly check if SPI reading 1byte from S2LP register works?

Best Regards,

Winfred

[BMoha.19]

Hi Winifred,

My firmware is already sending data to another node with S2LP. I have only a problem with S2LP DK tools.

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Be Regards

Mohamed Amine