STM32F7-template

Build template for the STM32F7 microprocessors, specifically the STM32F7 discovery & eval boards. Uses linux kernel kbuild system for creating .config file used for dynamic inclusion of HAL libraries and board/processor specific files.

Tested on Ubuntu 16.04.2 LTS and on Windows 10 with cygwin binutils, both with ARM GNU Toolchain, and board STM32F769I-Discovery.

Prerequisites

GNU Toolchain

https://developer.arm.com/open-source/gnu-toolchain/gnu-rm

GNU ARM Embedded Toolchain, pre-built for ARM Cortex-M and Cortex-R processors.

Libraries

http://www.st.com/en/embedded-software/stm32cubef7.html

Inside the downloaded zip file, you can find STM32F7Cube embedded software stack composed of:

• STM32F7xx HAL (Hardware abstraction layer) and LL (low-layer) drivers
• CMSIS (Cortex Microcontroller Software Interface Standard) drivers
• BSP (Board Support Package) - middleware components (RTOS, USB, FatFs, graphics and TCP/IP).

With this template, you can have several project directories that use a common makefile, Makefile.common, which you manipulate via .config file.

Demo project usage

The demo project basically just toggles some LED's on and off.

• clone the template
• run make (menuconfig|config|xconfig|gconfig) in Demo/ directory, this will create .config file in same directory
• run make in the Demo/ directory

Usage on new project

• copy makefile from Demo project, point it to the directory where you cloned this template
• run make (menuconfig|config|xconfig|gconfig) to create .config file
• run make init, which will copy all appropriate template user-application files for your board from the stm32f7cube framework into current directory (you configure which board it is in .config file)
• run make to compile
• voila

Programming & debugging the board

Linux debugging

https://github.com/texane/stlink

Open source version of the STMicroelectronics Stlink Tools, made for Linux (in my case built from binaries for Ubuntu):

• Start st-util in one window with st-util -1
• Start GDB with arm-none-eabi-gdb test.elf or make debug in Demo/ directory:
  • (gdb) target extended-remote :4242
  • (gdb) load
  • (gdb) continue

Windows flashing

http://www.st.com/en/embedded-software/stsw-link004.html

• Download ST-LINK Utility and add directory with st-link_cli executable to user/system PATH variable
• Run make flash-windows in Demo/ directory

Acknowledgements

Concept

Concept adapted from STM32-Template github project.

kbuild-template

Adapted kbuild version for building embedded projects taken from kbuild-template github project.