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Issue with SPI4 STM32H7B

aabba.1
Associate III

Hi,

I am trying to read a simple register via SPI4, when I am using the HAL function (HAL_SPI_TransmitReceive()), this function return a timOut. I did some debugging and when I transmit my data via the SPI (line 1344) I can see on my RXDR the value of the read register but when I try to go to the next step (line 1345) the value on the register is remove and then I can no more ready the value on the register

Do you guy have any idea why?

0693W00000WIyLrQAL.png

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