Help about SPI of Omega2+

  • Hi,
    I try to use SPI to communicate with TI RF chip. But the first byte(register address) of a packet is not what I expected.
    For example, I send 0x40 will become 0xC0, I send 0x80 will become 0x00.
    The MSB is not correct, it become the same with bit 6.
    Anyone know how to solve this?

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