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DRook.2
Associate
March 20, 2023
Question

LTDC on STM32H750 development kit, confusion about provided IOC

  • March 20, 2023
  • 1 reply
  • 791 views

If you use TouchGFX generator to generate examples for the STM32H750, I am confused about the CubeMX IOC generated for the LTDC peripheral. The IOC is setting the LTDC framebuffer address to 0. I don't understand this, only ITCM is at this location. Was there some kind of DMA that I'm missing at this address? How is it working?

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1 reply

Osman SOYKURT
ST Technical Moderator
March 22, 2023

Hello DRook.2,

If you use a STM32H750B-DK TBS (TouchGFX Board setup) in TouchGFX Designer, it's configured to store the framebuffers in SDRAM. I've checked the linker scripts and they all look fine :)

So could you elaborate a bit more about you mean by "use TouchGFX generator to generate examples for the STM32H750". Did you create your project from STM32CubeMX ?

/Osman

ST Software Developer | TouchGFX