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STPMC1 - not writing configurations

JEVelez
Visitor

Hello everyone.

I'm currently building a controller for this energy measurement chip.

So far, I've built my controller and can perform a remote reset and read data, but when I want to configure a register, I send my desired configuration, but when I read it, it remains at zero.

I've already reviewed and applied all the suggestions in the application note. I'm using "SPI" (some type) to send the data. The chip is powered at 3.3V, a 4.194MHz crystal, and the signals are configured according to the AN3254 application note.

My configuration sequence is:
- Remote reset.
- Wait for 120ms.
- Send the RD register at 1 to retrieve the temporary shadow registers.
- Send my desired configuration.
- Read all registers.

I don't know why I'm not seeing the configurations reflected in the registers.

Attached are screenshots of RRR signals, readings and writings.

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