[boards, tests, examples] Create example boards directory. Move board cfg there

[AlexLanzano]

No description provided.

[Copilot]

Pull request overview

This PR centralizes board support packages (BSPs) into a top-level boards/ directory and updates the tests/examples build system to consume those shared board definitions, while also adding a new IPC test suite and loosening the UART send/recv buffer types.

Changes:

• Move board linker/startup/config sources from tests/boards/* and examples/blinky/boards/* into boards/*, and update Makefiles accordingly.
• Add an IPC test suite and wiring in tests/main.c (behind WHAL_TEST_ENABLE_IPC).
• Change UART send/recv APIs from uint8_t* to void* to reduce casting at call sites.

Reviewed changes

Copilot reviewed 29 out of 37 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
wolfHAL/uart/uart.h	Changes UART vtable + public API buffer pointer types to void*.
wolfHAL/uart/stm32wb_uart.h	Updates STM32WB UART driver prototypes to match new UART API types.
wolfHAL/uart/pic32cz_uart.h	Updates PIC32CZ UART driver prototypes to match new UART API types.
src/uart/uart.c	Updates UART dispatch wrappers to the new pointer types.
src/uart/stm32wb_uart.c	Updates STM32WB UART send/recv implementations to accept void*.
src/uart/pic32cz_uart.c	Updates PIC32CZ UART send/recv implementations to accept void*.
tests/main.c	Adds IPC test hooks and removes UART string casts in output helper.
tests/ipc/test_ipc.c	Adds IPC test suite (init/deinit/null-arg coverage).
tests/Makefile	Switches tests to use shared $(WHAL_DIR)/boards/$(BOARD) and board-provided linker script.
examples/blinky/main.c	Removes UART string casts due to new UART API types.
examples/blinky/Makefile	Switches example to shared $(WHAL_DIR)/boards/$(BOARD) and board-provided linker script.
boards/stm32wb55xx_nucleo/linker.ld	New shared STM32WB55 Nucleo linker script (moved from tests).
boards/stm32wb55xx_nucleo/ivt.c	New shared STM32WB55 Nucleo startup/IVT (moved from tests).
boards/stm32wb55xx_nucleo/board.h	New shared STM32WB55 Nucleo board API + globals (superset for tests).
boards/stm32wb55xx_nucleo/board.c	New shared STM32WB55 Nucleo board device instantiation + init/deinit.
boards/stm32wb55xx_nucleo/Makefile.inc	Uses _BOARD_DIR self-reference pattern; sets defaults for stm32wb tests and sources.
boards/pic32cz_curiosity_ultra/linker.ld	New shared PIC32CZ linker script (moved from tests).
boards/pic32cz_curiosity_ultra/jlink/target.xml	New shared JLink target description (moved from tests).
boards/pic32cz_curiosity_ultra/ivt.c	New shared PIC32CZ startup/IVT (moved from tests).
boards/pic32cz_curiosity_ultra/board.h	New shared PIC32CZ board API + globals (superset for tests).
boards/pic32cz_curiosity_ultra/board.c	New shared PIC32CZ board device instantiation + init/deinit.
boards/pic32cz_curiosity_ultra/Makefile.inc	Uses _BOARD_DIR self-reference pattern; sets defaults for pic32cz tests and sources.
boards/README.md	Documents boards/ purpose and the _BOARD_DIR include convention.
README.md	Updates repo layout/build instructions to reference boards/ and consolidated example/test flows.
.gitignore	Renames ignored host test binary from tests/sim/test_sim to tests/core/test_core.
tests/boards/stm32wb55xx_nucleo/linker.ld	Removed (moved to boards/stm32wb55xx_nucleo/linker.ld).
tests/boards/stm32wb55xx_nucleo/ivt.c	Removed (moved to boards/stm32wb55xx_nucleo/ivt.c).
tests/boards/stm32wb55xx_nucleo/Makefile.inc	Removed (replaced by boards/stm32wb55xx_nucleo/Makefile.inc).
tests/boards/pic32cz_curiosity_ultra/linker.ld	Removed (moved to boards/pic32cz_curiosity_ultra/linker.ld).
tests/boards/pic32cz_curiosity_ultra/jlink/target.xml	Removed (moved to boards/pic32cz_curiosity_ultra/jlink/target.xml).
tests/boards/pic32cz_curiosity_ultra/ivt.c	Removed (moved to boards/pic32cz_curiosity_ultra/ivt.c).
examples/blinky/boards/stm32wb55xx_nucleo/board.h	Removed (board definition moved to boards/stm32wb55xx_nucleo/board.h).
examples/blinky/boards/stm32wb55xx_nucleo/board.c	Removed (board definition moved to boards/stm32wb55xx_nucleo/board.c).
examples/blinky/boards/stm32wb55xx_nucleo/Makefile.inc	Removed (replaced by boards/stm32wb55xx_nucleo/Makefile.inc).
examples/blinky/boards/pic32cz_curiosity_ultra/board.h	Removed (board definition moved to boards/pic32cz_curiosity_ultra/board.h).
examples/blinky/boards/pic32cz_curiosity_ultra/board.c	Removed (board definition moved to boards/pic32cz_curiosity_ultra/board.c).

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[Copilot]

Pull request overview

Copilot reviewed 29 out of 37 changed files in this pull request and generated no new comments.

Comments suppressed due to low confidence (5)

wolfHAL/uart/uart.h:1

• Changing the public UART API (and driver vtable) from uint8_t* to void* is a breaking change for downstream users and removes useful type-safety (these calls are byte-oriented and the platform drivers immediately cast back to uint8_t*). Consider keeping the existing uint8_t* signatures and instead adding convenience wrappers/macros for string literals (e.g., a whal_Uart_SendStr(uart, \"...\")) or adding new *_Bytes / *_Raw functions while keeping the original API for compatibility.
  wolfHAL/uart/uart.h:1
• Changing the public UART API (and driver vtable) from uint8_t* to void* is a breaking change for downstream users and removes useful type-safety (these calls are byte-oriented and the platform drivers immediately cast back to uint8_t*). Consider keeping the existing uint8_t* signatures and instead adding convenience wrappers/macros for string literals (e.g., a whal_Uart_SendStr(uart, \"...\")) or adding new *_Bytes / *_Raw functions while keeping the original API for compatibility.
  wolfHAL/uart/uart.h:1
• Changing the public UART API (and driver vtable) from uint8_t* to void* is a breaking change for downstream users and removes useful type-safety (these calls are byte-oriented and the platform drivers immediately cast back to uint8_t*). Consider keeping the existing uint8_t* signatures and instead adding convenience wrappers/macros for string literals (e.g., a whal_Uart_SendStr(uart, \"...\")) or adding new *_Bytes / *_Raw functions while keeping the original API for compatibility.
  tests/ipc/test_ipc.c:1
• This test leaves g_whalIpc initialized at the end (final whal_Ipc_Init is not paired with a whal_Ipc_Deinit). That can leak resources or affect later tests in the same binary. Add a final deinit (or restructure the test to ensure it ends in the original state).
  boards/README.md:18
• The markdown table uses double leading pipes (|| ...), which renders as an extra empty column in many markdown renderers. Use a single leading pipe per row (e.g., | Board | Platform | ... |).

| Board | Platform | CPU | Directory |
|-------|----------|-----|-----------|
| Microchip PIC32CZ CA Curiosity Ultra | PIC32CZ | Cortex-M7 | `pic32cz_curiosity_ultra/` |
| ST STM32WB55 Nucleo | STM32WB | Cortex-M4 | `stm32wb55xx_nucleo/` |

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