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DRV8353: 电机驱动器论坛

Part Number: DRV8353

We use drv8353 in our motor control system, vbuck is OK, output signals also OK. We use 4 GPIOs to connect to DRV8353 SPI pins, trying to control DRV8353 by SPI interface, but SDO always output 0xff, could you please help to check is there any problem in schemetic and final signal, thanks a lot in advance

For the first waveform, yellow is nSCS, blue is clock.
For the second waveform, yellow is clock and blue is MOSI
There is no need for the third waveform because MISO is always high.