as described in the user manual, SPI NSS setup can set NSS as HW or SW ontrol. However, setting it via CubeMX tool, the HW setup is not shown as a possible selection in the selection box. (NSS signal Type is only "Sofrware")

Nuzie · ‎2019-10-24

CubeMx version is 5.3.0,

CPU is STM32MP157

working on discovery board DK2.

PatrickF · ‎2019-10-25

Hello,

Under Linux, the SPI driver only supports 'Software NSS', which mean the driver could uses any GPIO to control the NSS line(s).

see https://wiki.st.com/stm32mpu/index.php/SPI_device_tree_configuration

Under Cortex-M4 HAL, 'Hardware NSS' is supported

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