Nucleo-H723ZG Mongoose Integration
This guide explains how to bring up a production-grade Web UI dashboard on the STM32 Nucleo-H723ZG development board.
Build, flash, and debug in VS Code
Connect the board's ST-LINK USB port. The tasks require CMake, Ninja,
arm-none-eabi-gcc, and STM32_Programmer_CLI on PATH. Debugging uses the
Cortex-Debug extension and its configured cortex-debug.stlinkPath,
cortex-debug.stm32cubeprogrammer (the programmer's bin directory),
cortex-debug.armToolchainPath, and cortex-debug.gdbPath settings.
- Build: press Ctrl+Shift+B to configure and build the Debug preset.
- Flash and run: choose Terminal > Run Task > Flash STM32 Debug. This builds the firmware, programs the ELF, verifies it, and resets the MCU.
- Flash and debug: select NUCLEO-H723ZG: Flash and Debug (ST-Link) in
Run and Debug, then press F5. This builds and programs the firmware and
stops at
main. Set breakpoints and press F5 to continue. - Attach: select NUCLEO-H723ZG: Attach (ST-Link) to inspect firmware
already on the board. Use the matching
build/Debug/nucleo-h723zg.elffor symbols; this configuration does not build or download firmware.
Stop an active debug session before running the flash task so the probe is free.
The H723 Cortex-M7 uses debug access port 0 (-m 0 for the GDB server,
ap=0 for CubeProgrammer). Selecting -m 1 causes the GDB server to fail with
Failed to halt target. Programming connects under hardware reset.
A pre-configured, ready-to-run project zip is available for download at https://mongoose.ws.
To integrate the Web UI dashboard into an existing CubeMX project, or to create a new project from scratch:
- Configure the peripherals (described below).
- Regenerate your project code and integrate Mongoose core by following https://mongoose.ws/docs/guides/stm32-tcpip-stack/.
- Add the Web UI dashboard by following https://mongoose.ws/docs/guides/web-dashboard-guide/.
Configure peripherals
An .ioc file is included in this directory for your reference. It was created
using the following steps:
- Open CubeMX. If you are starting a new project, select the STM32H723ZG microcontroller and create a new project.
- In Clock Configuration, set the maximum clock frequency to 550 MHz.
- In the MCU pinout view, set pins PB0, PE1, and PB14 to GPIO_Output mode.
- In Pinout & Configuration / Connectivity, enable USART3 in asynchronous mode. Configure pins PD8 and PD9 for USART.
- In Pinout & Configuration / Connectivity, enable ETH in RMII mode and set pins PA1, PA2, PA7, PC1, PC4, PC5, PB13, PG11, and PG13 for Ethernet.
- In the "Project Manager", set heap size to 0x10000, and stack size to 0x2000