Hello Joma,
I think there is some interface issue.
You can write softreset for test.
Reg 0x7E value 0xB6 and delay 150ms before trying to read data from register 0x00.
If your interface is okay, MOSI shall transmit 0xB6 value to Register 0x7E.
If not, need to check hardware side.
Thanks,
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