LL Driver Support for SPI on STM32H743ZI

[mohitha]

I am working on a project using the STM32H743ZI microcontroller.
I want to implement SPI communication using the LL (Low-Layer) drivers instead of HAL.

:question_mark: Can you confirm whether the STM32H743ZI supports LL SPI driver APIs like LL_SPI_Init, LL_SPI_TransmitData8, etc.?

Also, are there any specific settings or header files (like USE_FULL_LL_DRIVER) required to enable these LL functions in STM32CubeIDE

Does STM32H743ZI support SPI communication using LL drivers? I’m using STM32CubeIDE.
SPI1 is enabled, but LL_SPI functions are disabled unless I define USE_FULL_LL_DRIVER.
Is this the correct way to enable LL SPI support?

[KnarfB]

How was the project code generated? By STM32CubeMX (.ioc file)?

[mohitha]

I am using stm32h747bit6-DISO board in stm32cubeide 1.18.1 software 

[MHoll.2]

You can switch between HAL and LL drivers (when available) in the Project Manager TAB (Advanced Settings).

This should enable USE_FULL_LL_DRIVER automatically.

[Andrew Neil]

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@mohitha wrote:

Can you confirm whether the STM32H743ZI supports LL SPI driver APIs like LL_SPI_Init, LL_SPI_TransmitData8, etc.?

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You have that question the wrong way around!

The STM32H743ZI neither knows nor cares what you use in your source code - all it sees are the binary instructions in its Flash.

The question, then, is whether the Firmware Pack provides these LL APIs.

You can find this on the 'Tools & Software' tab of the STM32H743ZI  Product Page:

https://www.st.com/en/microcontrollers-microprocessors/stm32h743zi.html#tools-software

This links you to the STM32CubeH7 firmware package - see the 'Documentation' tab for documentation:

https://www.st.com/en/embedded-software/stm32cubeh7.html#documentation

The document you require is UM2217, Description of STM32H7 HAL and low-layer drivers:

https://www.st.com/resource/en/user_manual/um2217-description-of-stm32h7-hal-and-lowlayer-drivers-stmicroelectronics.pdf#page=3561