arch/arm/n32h7: Add N32H762IIL7 BSP with USBHS, SDMMC, CORDIC and CMake preset helper

.gitignore

@@ -95,3 +95,4 @@ SAVEconfig
 .aider*
 imx9-norimage.img
 config.txt
+CMakeUserPresets.json

CMakeLists.txt

@@ -97,6 +97,42 @@ if(EXISTS "${NUTTX_DIR}/.config")
     FATAL_ERROR "Please distclean previous make build with `make distclean`")
 endif()
 
+# Check if board presets already exist
+set(GENERATED_PRESET_FILE "${CMAKE_SOURCE_DIR}/CMakeUserPresets.json")
+
+if(NOT EXISTS "${GENERATED_PRESET_FILE}")
+  message(STATUS "CMake board presets not found. Generating them now...")
+  message(
+    STATUS
+      "  This will create 'CMakeUserPresets.json' with all available board configs."
+  )
+
+  execute_process(
+    COMMAND python3 "${CMAKE_SOURCE_DIR}/tools/generate_cmake_presets.py"
+    WORKING_DIRECTORY "${CMAKE_SOURCE_DIR}"
+    RESULT_VARIABLE GEN_RESULT
+    OUTPUT_VARIABLE GEN_OUTPUT
+    ERROR_VARIABLE GEN_ERROR)
+
+  if(GEN_RESULT EQUAL 0)
+    message(STATUS "   Board presets generated successfully.")
+    message(
+      STATUS
+        "   Please reload CMake configuration (e.g., re-run 'cmake -B build')")
+    message(STATUS "   to see the presets in your IDE.")
+  else()
+    message(
+      WARNING
+        "Failed to generate board presets (python3 not found or script error).")
+    message(WARNING "  To enable preset selection, run manually:")
+    message(
+      WARNING "    python3 ${CMAKE_SOURCE_DIR}/tools/generate_cmake_presets.py")
+    if(GEN_ERROR)
+      message(STATUS "  Error output: ${GEN_ERROR}")
+    endif()
+  endif()
+endif()
+
 if(NOT DEFINED BOARD_CONFIG)
   message(FATAL_ERROR "Please define configuration with BOARD_CONFIG")
 endif()

CMakePresets.json

@@ -0,0 +1,19 @@
+{
+  "version": 3,
+  "configurePresets": [
+    {
+      "name": "default",
+      "hidden": true,
+      "generator": "Ninja",
+      "binaryDir": "${sourceDir}/build",
+      "cacheVariables": {}
+    },
+    {
+      "name": "Default",
+      "inherits": "default",
+      "cacheVariables": {
+        "BOARD_CONFIG": "n32h762iil7:nsh"
+      }
+    }
+  ]
+}

Documentation/platforms/arm/n32h7/boards/n32h762iil7/index.rst

@@ -0,0 +1,187 @@
+===========================
+N32H762IIL7 Development Board
+===========================
+
+.. tags:: chip:n32h762, arch:armv7e-m, vendor:nations, usb, sdmmc, cordic
+
+.. figure:: n32h762iil7.png
+   :scale: 30 %
+   :align: center
+   :alt: N32H762IIL7 development board
+
+   N32H762IIL7 development board from Nations Technologies.
+
+The N32H762IIL7 is a high-performance Cortex-M7 development board from Nations
+Technologies, featuring a 600 MHz ARM Cortex-M7 core, 1.5 MB SRAM, and 2 MB
+on-chip SIP Flash. It is designed for industrial control, IoT gateways, and
+other compute-intensive applications.
+
+Features
+========
+
+OsTest LogFile:
+
+https://github.com/apache/nuttx/blob/17b96027359785bcb455342bfcaa900b46637540/arch/arm/src/n32h7/nuttx_test.log
+
+The current NuttX BSP supports the following features:
+
+- MCU: N32H762IIL7 (ARM Cortex-M7 @ 600 MHz)
+- 1.5 MB SRAM (configurable as ITCM/DTCM/AXI SRAM)
+- 2 MB SIP Flash (with cache limitations, see note)
+- GPIO, EXTI, RCC, UART (console)
+- TIM: timer, PWM, oneshot, tickless
+- DMA (chained transfers)
+- USBHS (Device and Host modes, external ULPI PHY required for HS)
+- SDMMC (ADMA2 support)
+- CORDIC hardware accelerator
+- FLASH (MTD driver)
+- UID
+
+**Not yet supported:** ADC, DAC, I2C, SPI, ETH, CAN/FDCAN, RTC, WDT.
+
+.. note::
+   The SIP Flash on this chip does not work well with cache. For maximum
+   performance, critical code should be placed in ITCM (zero-wait memory).
+
+Buttons and LEDs
+================
+
+The board provides three user-controllable LEDs (Green, Blue, Red) and several
+buttons.
+
+- **LEDs**:
+  - Green (LD1) - GPIO PA1
+  - Blue (LD2)  - GPIO PA2
+  - Red (LD3)   - GPIO PA3
+  (All active high)
+
+- **Buttons**:
+  - Wakeup (B1) - GPIO PA0
+  - Key1        - GPIO PC0
+  - Key2        - GPIO PC1
+  - Key3        - GPIO PC4
+  (A high value when pressed)
+
+Pin Mapping
+===========
+
+The following table lists the default pin assignments for the N32H762IIL7 board.
+For a complete list, refer to `boards/arm/n32h7/n32h762iil7/include/board.h`.
+
+===== ============ ===================================================
+Pin   Signal       Function
+===== ============ ===================================================
+PA9   USART1_TX    Console output (default)
+PA10  USART1_RX    Console input (default)
+PA11  USBHS1_DM    USBHS1 data-
+PA12  USBHS1_DP    USBHS1 data+
+PB14  USBHS2_DM    USBHS2 data-
+PB15  USBHS2_DP    USBHS2 data+
+PD2   SDMMC1_CMD   SD card command
+PC8   SDMMC1_D0    SD card data 0
+PC9   SDMMC1_D1    SD card data 1
+PC10  SDMMC1_D2    SD card data 2
+PC11  SDMMC1_D3    SD card data 3
+PC12  SDMMC1_CK    SD card clock
+PC13  SDIO_NCD     Card detect (input, pull-up)
+PC6   USBHS1_PWRON Power control for USBHS1 (output)
+PD12  USBHS2_PWRON Power control for USBHS2 (output)
+PE9   ATIM1_CH1    PWM channel 1 (TIM1)
+PE11  ATIM1_CH2    PWM channel 2
+PE13  ATIM1_CH3    PWM channel 3
+PE14  ATIM1_CH4    PWM channel 4
+PE5   GTIMB1_CH1   PWM channel 1 (TIMB1)
+PE6   GTIMB1_CH2   PWM channel 2
+PE0   GTIMB1_CH3   PWM channel 3
+PE1   GTIMB1_CH4   PWM channel 4
+PA6   GTIMA2_CH1   Capture input 1 (TIM2)
+...   ...          ...
+===== ============ ===================================================
+
+Power Supply
+============
+
+The board can be powered via USB (5V) or an external DC supply. It includes an
+on-board voltage regulator to generate 3.3V for the MCU and peripherals.
+
+Installation
+============
+
+To build NuttX for this board, you will need the standard ARM GCC toolchain
+(version 10.2 or later) or Clang (14+). Installation instructions are the same
+as for other Cortex-M boards. For details, see the
+:doc:`/quickstart/install` guide.
+
+Building NuttX
+==============
+
+This board supports both the traditional Makefile build system and the newer
+CMake/Ninja build system.
+
+Makefile (GCC):
+  .. code:: console
+
+     $ cd nuttx
+     $ ./tools/configure.sh n32h762iil7:nsh
+     $ make -j$(nproc)
+
+Makefile (Clang):
+  .. code:: console
+
+     $ ./tools/configure.sh n32h762iil7:nsh
+     $ make menuconfig   # select Clang toolchain
+     $ make -j$(nproc)
+
+CMake/Ninja (GCC only):
+  .. code:: console
+
+     $ cd nuttx
+     $ cmake -B build -DBOARD_CONFIG=n32h762iil7:nsh -G Ninja
+     $ ninja -C build
+
+The resulting image (`nuttx.bin` or `nuttx.elf`) can be found in the build
+directory.
+
+Flashing and Debugging
+======================
+
+The N32H762IIL7 can be programmed via JTAG/SWD using a debug probe.
+
+**Supported debugger**: J-Link + Ozone (the J-Link patch must be obtained from
+Nations Technologies or extracted from the vendor’s .pack file). Other probes
+(e.g., ST-Link, CMSIS-DAP) are not currently supported.
+
+The exact procedure depends on your J-Link configuration. Typically, you would
+use Ozone to load the ELF file and flash it.
+
+.. todo::
+   Provide exact Ozone project settings if possible.
+
+Configurations
+==============
+
+The board identifier for `tools/configure.sh` is `n32h762iil7`. Currently, only
+one configuration is provided:
+
+nsh
+---
+
+This configuration provides the NuttShell (NSH) over the USART1 console at
+115200 baud. It includes **all currently supported drivers** and a selection of
+example applications (CoreMark, ostest, sdbench, osperf, ramspeed, etc.). It is
+the recommended starting point for evaluation.
+
+  .. code:: console
+
+     $ ./tools/configure.sh n32h762iil7:nsh
+     $ make
+
+.. note::
+   Additional configurations (e.g., ``usb``, ``sdmmc``) may be added in the
+   future as more peripherals are ported.
+
+License Exceptions
+==================
+
+The N32H7 port is entirely original work and is licensed under the Apache 2.0
+license, with no third-party proprietary code included.

Documentation/platforms/arm/n32h7/index.rst

@@ -0,0 +1,62 @@
+============
+Nations N32H7
+============
+
+Supported MCUs
+==============
+
+The following N32H7 series MCUs are supported in NuttX:
+
+============  ======= ================
+MCU           Support Note
+============  ======= ================
+N32H762IIL7   Yes     Cortex-M7 @ 600MHz, 1.5MB SRAM, 2MB Flash
+N32H76x       Yes     Currently supported via the N32H762IIL7 BSP
+N32H78x       No      (No plan yet)
+============  ======= ================
+
+Peripheral Support
+==================
+
+The following list indicates peripherals supported in NuttX for N32H7 family:
+
+==========  =======  ======================
+Peripheral  Support  Notes
+==========  =======  ======================
+GPIO        Yes
+EXTI        Yes
+RCC         Yes
+UART        Yes
+TIM         Yes
+PWM         Yes
+ONESHOT     Yes
+TICKLESS    Yes
+DMA         Yes
+USBHS       Yes      Device and Host modes
+SDMMC       Yes      ADMA2 supported
+CORDIC      Yes
+FLASH       Yes      MTD driver
+UID         Yes
+WDT         No       Not yet ported
+RTC         No       Not yet ported
+I2C         No       Not yet ported
+SPI         No       Not yet ported
+ADC         No       Not yet ported
+DAC         No       Not yet ported
+CAN/FDCAN   No       Not yet ported
+ETH         No       Not yet ported
+==========  =======  ======================
+
+.. note::
+   The SIP Flash on N32H76x has a limitation that prevents effective cache usage.
+   Therefore, code running from Flash may have lower performance than expected.
+   It is recommended to place critical code in ITCM for better performance.
+
+Supported Boards
+================
+
+.. toctree::
+   :glob:
+   :maxdepth: 1
+
+   boards/*/*

arch/arm/Kconfig

@@ -303,6 +303,22 @@ config ARCH_CHIP_MOXART
 	---help---
 		MoxART family
 
+config ARCH_CHIP_N32H7
+	bool "N32 H7"
+	select ARCH_CORTEXM7
+	select ARCH_HAVE_MPU
+	select ARCH_HAVE_I2CRESET
+	select ARCH_HAVE_PROGMEM
+#	select ARCH_HAVE_HEAPCHECK
+	select ARCH_HAVE_SPI_BITORDER
+	select ARM_HAVE_MPU_UNIFIED
+	select ARMV7M_HAVE_STACKCHECK
+	select ARCH_HAVE_TICKLESS
+	select ARCH_HAVE_TIMEKEEPING
+	---help---
+		Nation Tech N32H7 architectures (ARM Cortex-M7 or
+		dual ARM Cortex-M7 Cortex-M4).
+
 config ARCH_CHIP_NRF52
 	bool "Nordic nRF52"
 	select ARCH_CORTEXM4
@@ -1317,6 +1333,7 @@ config ARCH_CHIP
 	default "lpc54xx"	if ARCH_CHIP_LPC54XX
 	default "max326xx"	if ARCH_CHIP_MAX326XX
 	default "moxart"	if ARCH_CHIP_MOXART
+	default "n32h7"		if ARCH_CHIP_N32H7
 	default "nrf52"		if ARCH_CHIP_NRF52
 	default "nrf53"		if ARCH_CHIP_NRF53
 	default "nrf91"		if ARCH_CHIP_NRF91
@@ -1811,6 +1828,9 @@ endif
 if ARCH_CHIP_MOXART
 source "arch/arm/src/moxart/Kconfig"
 endif
+if ARCH_CHIP_N32H7
+source "arch/arm/src/n32h7/Kconfig"
+endif
 if ARCH_CHIP_NRF52
 source "arch/arm/src/nrf52/Kconfig"
 endif