[stm32*, pic32, drivers] Add single instnace device struct to each driver

[AlexLanzano]

No description provided.

[Copilot]

Pull request overview

This PR extends wolfHAL’s “single-instance” device model by defining per-driver singleton device structs across multiple STM32/PIC32 drivers (UART/SPI/I2C/DMA/Flash/Block/Sensor), and updates the Getting Started documentation to explain the device-configuration knobs. It also removes an empty sensor test stub and an empty IPC test case.

Changes:

• Add WHAL_CFG_*_SINGLE_INSTANCE-guarded singleton device definitions (*_Dev) to many driver translation units.
• Update docs/getting_started.md to more fully document pointer-based vs single-instance and direct-mapping vs vtable dispatch.
• Remove unused/empty tests (tests/sensor/test_sensor.c, Test_Ipc_InitNull) and their invocation.

Reviewed changes

Copilot reviewed 21 out of 21 changed files in this pull request and generated 20 comments.

Show a summary per file

File	Description
wolfHAL/uart/stm32wb_uart.h	Extends preprocessor gating to account for additional STM32 direct-mapping flags.
src/uart/stm32wb_uart.c	Adds singleton whal_Stm32wb_Uart_Dev definition for single-instance builds and extends WBA conditionals.
src/uart/stm32wb_uart_dma.c	Adds singleton whal_Stm32wb_UartDma_Dev for DMA UART single-instance builds.
src/uart/stm32wba_uart_dma.c	Adds singleton whal_Stm32wba_UartDma_Dev for WBA DMA UART single-instance builds.
src/uart/stm32f0_uart.c	Adds singleton whal_Stm32f0_Uart_Dev for F0/F3 single-instance builds.
src/uart/stm32f4_uart.c	Adds singleton whal_Stm32f4_Uart_Dev for F4/L1 single-instance builds.
src/uart/pic32cz_uart.c	Adds singleton whal_Pic32cz_Uart_Dev for PIC32CZ single-instance builds.
src/spi/stm32wb_spi.c	Adds singleton whal_Stm32wb_Spi_Dev for WB/C0/F0/F3 SPI single-instance builds.
src/spi/stm32h5_spi.c	Adds singleton whal_Stm32h5_Spi_Dev for H5/N6/WBA SPI single-instance builds.
src/spi/stm32f4_spi.c	Adds singleton whal_Stm32f4_Spi_Dev for F4/L1 SPI single-instance builds.
src/i2c/stm32wb_i2c.c	Adds singleton whal_Stm32wb_I2c_Dev for WB/F0/F3/N6 I2C single-instance builds.
src/i2c/stm32l1_i2c.c	Adds singleton whal_Stm32l1_I2c_Dev for L1 I2C single-instance builds.
src/dma/stm32wb_dma.c	Adds singleton whal_Stm32wb_Dma_Dev for WB DMA single-instance builds.
src/dma/stm32wba_gpdma.c	Adds singleton whal_Stm32wba_Gpdma_Dev for WBA/N6 GPDMA single-instance builds.
src/flash/spi_nor_flash.c	Adds singleton whal_SpiNor_Dev for SPI NOR single-instance builds.
src/block/sdhc_spi_block.c	Adds singleton whal_SdhcSpi_Dev for SDHC-over-SPI block single-instance builds.
src/sensor/imu/bmi270_sensor.c	Adds singleton whal_Bmi270_Dev for BMI270 single-instance builds.
docs/getting_started.md	Major expansion/clarification of the device model and build knobs; includes some examples that need alignment with actual code.
tests/ipc/test_ipc.c	Removes an empty IPC test case.
tests/main.c	Removes sensor test suite declaration/invocation.
tests/sensor/test_sensor.c	Deletes an empty sensor test stub.

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[Copilot]

Pull request overview

Copilot reviewed 36 out of 36 changed files in this pull request and generated 2 comments.