Issue with spi reading on the STM32-nucleo-F767ZI

[Bortania]

Hello,

I am trying to implement spi writing/reading to the slave device using STM32 microcontroller.
I have spi datagram define here on the page 25 that also define slave manufacture vendorID at address 0x0200.

Using below code, I tried to read vendorID and get bytearray([b'x00\x00\x00\x00']) :

import machine

cs = machine.Pin('SPI3_NSS', machine.Pin.OUT)
sck =machine.Pin('SPI3_SCK', machine.Pin.OUT)
mosi =machine.Pin('SPI3_MOSI', machine.Pin.OUT)
miso =machine.Pin('SPI3_MISO', machine.Pin.OUT)

spi = machine.SPI(3, baudrate=1000000, polarity=0, phase=0)

data_in = bytes(bytearray( [0x0, 0x4, 0x0, 0x1] ) ) #register 0x0200 of the slave
data_out =  bytearray(4)

cs(0)
spi.write_readinto(data_in, data_out)
cs(1)

data_out = b'x00\x00\x00\x00'

Can you please point out what am I doing wrong? Thank you.