Hi, ok, I sent the following bytes now: CS low Writing: D0h (Write two bytes command) 24h (Register address) 55h (alternating 0s and 1s) 55h Reading: 48h (read two bytes command) 24h (Register address) 00h (send zeros and simultaneously read MISO) 00h CS high The scope shows: Zoom on first 4 bytes (writing): Zoom on last 4 bytes (reading): My Arduino still reads zeros, although I wrote 5555h ...
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