The NUCLEO-H745ZI-Q, NUCLEO-H755ZI-Q and NUCLEO-H7A3ZI-Q share the same board reference MB1363 but implement different common parts

[bene42]

The NUCLEO-H745ZI-Q, NUCLEO-H755ZI-Q and NUCLEO-H7A3ZI-Q share the same board reference MB1363 i.e. use the same PCB with different SoCs. Furthermore the SoC share a wide varity of common IPs.

The difference between the boards are in Crypto support and Ethernet.

• NUCLEO-H7A3ZI-Q: No Crypto and no Ethernet
• NUCLEO-H745ZI-Q: No Crypto, but Ethernet
• NUCLEO-H755ZI-Q: Crypto and Ethernet

The board ports of all 3 boards differ in common features: LEDs, different tests, different default configuration. Fixes and enhancements to one of these boards are not ported to the other boards and therefor the boards have diverged.

Expected behavior All features, tests, settings except Crypto and Ethernet behave the same on all these boards.

Impact Applications compiled for these boards behave different in common parts.

Notes As far as I see, the new Zephyr current hardware model takes into account:

• Support for multi-core, multi-arch AMP (Asymmetrical Multi Processing) SoCs
• Support for multi-SoC boards
• Support for reusing the SoC and board Kconfig trees outside of the Zephyr build system
• Support for advanced use cases with Sysbuild (System build)

but not different SoC on a common PCB, like above.

Regards Benedikt Spranger

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[nordicjm]

They could be put into one folder and have the same base files then just include the common dts file, .conf files would need to be separate.