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Arduino Core for STM32L4 based boards

Supported boards

Tlera Corp

STMicroelectronics

  • NUCLEO-L432
  • NUCLEO-L476

Installing

Board Manager

  1. Download and install the Arduino IDE (at least version v1.6.8)
  2. Start the Arduino IDE
  3. Go into Preferences
  4. Add https://grumpyoldpizza.github.io/arduino-STM32L4/package_STM32L4_boards_index.json as an "Additional Board Manager URL"
  5. Open the Boards Manager from the Tools -> Board menu and install "STM32L4 Boards by Tlera Corp"
  6. Select your STM32L4 board from the Tools -> Board menu

OS Specific Setup

Linux
  1. Go to ~/.arduino15/packages/grumpyoldpizza/hardware/stm32l4/<VERSION>/drivers/linux/
  2. sudo cp *.rules /etc/udev/rules.d
  3. reboot
Windows
STM32 BOOTLOADER driver setup for Tlera Corp boards
  1. Download Zadig
  2. Plugin STM32L4 board and toggle the RESET button while holding down the BOOT button
  3. Let Windows finish searching for drivers
  4. Start Zadig
  5. Select Options -> List All Devices
  6. Select STM32 BOOTLOADER from the device dropdown
  7. Select WinUSB (v6.1.7600.16385) as new driver
  8. Click Replace Driver
USB Serial driver setup for Tlera Corp boards (Window XP / Windows 7 only)
  1. Go to ~/AppData/Local/Arduino15/packages/grumpypoldpizza/hardware/stm32l4/<VERSION>/drivers/windows
  2. Right-click on dpinst_x86.exe (32 bit Windows) or dpinst_amd64.exe (64 bit Windows) and select Run as administrator
  3. Click on Install this driver software anyway at the Windows Security popup as the driver is unsigned
ST-LINK V2.1 driver setup for NUCLEO boards
  1. Plugin NUCLEO board
  2. Download and install ST-Link USB Drivers

From git (for core development)

  1. Follow steps from Board Manager section above
  2. cd <SKETCHBOOK>, where <SKETCHBOOK> is your Arduino Sketch folder:
  • OS X: ~/Documents/Arduino
  • Linux: ~/Arduino
  • Windows: ~/Documents/Arduino
  1. Create a folder named hardware, if it does not exist, and change directories to it
  2. Clone this repo: git clone https://github.com/grumpyoldpizza/arduino-STM32L4.git grumpyoldpizza/stm32l4
  3. Restart the Arduino IDE

Recovering from a faulty sketch for Tlera Corp Boards

Sometimes a faulty sketch can render the normal USB Serial based integration into the Arduindo IDE not working. In this case plugin the STM32L4 board and toggle the RESET button while holding down the BOOT button and program a known to be working sketch to go ack to a working USB Serial setup.

Credits

This core is based on the Arduino SAMD Core

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