Add stm32h743 board family

[nuraci]

Summary

Fixed an error reported by the build process

Testing

• Build firmware for DEV190806042: make BOARD=DEV190806042

---

Summary by cubic

Adds STM32H743 board family support with QSPI flash, external SDRAM, LTDC display, and USB FS, and fixes an SD card build error on STM32H7_CORE V10 by using SDMMC2 and the correct pins.

• New Features

  • Adds DEV190806042, FK743M5-XIH6, and STM32H7_CORE (variants V10 and V13).
  • QSPI flash block device with cache; board-specific sizes and prescaler.
  • 32MB SDRAM enabled with startup test and heap placement when valid.
  • USB FS (2x CDC + MSC) and LTDC/DMA2D with LVGL hooks.
  • Board-specific linker scripts and HAL config for H743 clocks/memory.
  • Internal flash storage disabled to avoid known option-bytes issue.

• Bug Fixes

  • STM32H7_CORE V10: route SD card to SDMMC2 to fix build failure.

^{Written for commit d84e00f. Summary will update on new commits.}

[cubic-dev-ai]

1 issue found across 26 files

Prompt for AI agents (unresolved issues)

Check if these issues are valid — if so, understand the root cause of each and fix them. If appropriate, use sub-agents to investigate and fix each issue separately.


<file name="ports/stm32/boards/FK743M5-XIH6/mpconfigboard.mk">

<violation number="1" location="ports/stm32/boards/FK743M5-XIH6/mpconfigboard.mk:10">
P2: Board config hard-codes LVGL module paths that don’t exist in the repo, likely breaking builds for this board in a clean checkout.</violation>
</file>

_{Reply with feedback, questions, or to request a fix. Tag @cubic-dev-ai to re-run a review.}