ST STM32 Nucleo User manual

January 2016 DocID025840 Rev 5 1/22
UM1727
User manual
Getting started with STM32 Nucleo board software
development tools
Introduction
The STM32 Nucleo board is a low-cost and easy-to-use development platform used to
quickly evaluate and start a development with an STM32 in 32-pin package, 64-pin package
and 144-pin package.
This document provides guidelines to beginners on how to build and run a sample
application and allows them to build and debug their application. It has the following
structure:
•The first chapter presents software and hardware requirements (some toolchains
supporting the STM32 families, ST-LINK/V2-1 installation and firmware package
presentation).
•The second chapter provides step by step guideline on how to build and debug an
application using some toolchains:
– IAR Embedded Workbench®for ARM®(EWARM) by IAR systems®
– Microcontroller Development Kit for ARM®(MDK-ARM) by Keil®
– TrueSTUDIO®by Atollic®
– System Workbench for STM32 (SW4STM32) by AC6
This manual does not cover all the topics relevant to software development environments,
but it demonstrates the first basic steps necessary to get started with the
compilers/debuggers and offers links to the documents needed to fully understand every
single step.
All boards belonging to the STM32 MCU Nucleo line are supported.
Figure 1. Nucleo development tools
www.st.com

Contents UM1727
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Contents
1 System requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
2 IDEs supporting STM32 families . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
3 ST-LINK/V2-1 installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
4 Firmware package . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
4.1 Executing and debugging firmware using software toolchains . . . . . . . . . . 8
4.1.1 EWARM toolchain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
4.1.2 MDK-ARM toolchain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4.1.3 TrueSTUDIO toolchain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
4.1.4 SW4STM32 toolchain . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
5 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

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List of figures
Figure 1. Nucleo development tools . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Figure 2. Connector CN1 for Nucleo 144 board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Figure 3. Connector CN1 for Nucleo 64 board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 4. Connector CN1 for Nucleo 32 board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Figure 5. Package contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 6. IAR Embedded Workbench IDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 7. EWARM project successfully compiled. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 8. Download and debug button. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 9. IAR Embedded Workbench debugger screen . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Figure 10. Go button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 11. µvision5 IDE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
Figure 12. MDK-ARM project successfully compiled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 13. Start/Stop Debug Session button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Figure 14. MDK-ARM debugger screen. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 15. Run button . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Figure 16. TrueSTUDIO workspace launcher dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Figure 17. Atollic TrueSTUDIO import source select dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 18. Atollic TrueSTUDIO import projects dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Figure 19. TrueSTUDIO project successfully compiled . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Figure 20. TrueSTUDIO debug window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
Figure 21. SW4STM32 workspace launcher dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 22. SW4STM32 import source select dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
Figure 23. SW4STM32 import projects dialog box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 24. SW4STM32 project successfully compiled. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Figure 25. SW4STM32 debug window . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

System requirements UM1727
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1 System requirements
Before starting the user should:
1. Install the preferred Integrated Development Environment (IDE).
2. ST-LINK/V2-1 driver will be installed automatically. In case of problem, the user can
proceed with manual installation of the driver, from toolchains install directory (further
details are available in Section 3).
3. Download the STM32 Nucleo firmware from the www.st.com/stm32nucleo webpage.
4. Establish the connection with the STM32 Nucleo board, by connecting CN1 of the
Nucleo board to the USB port of the PC (Figure 2,Figure 3 and Figure 4 show the
connector CN1 inside the red circle).
The above steps will be detailed in the coming sections.
Figure 2. Connector CN1 for Nucleo 144 board

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Figure 3. Connector CN1 for Nucleo 64 board
Figure 4. Connector CN1 for Nucleo 32 board

IDEs supporting STM32 families UM1727
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2 IDEs supporting STM32 families
STMicroelectronics STM32 families of 32-bit ARM®Cortex® -M core-based microcontrollers
are supported by a complete range of software tools. It encompasses traditional integrated
development environment IDEs with C/C++ compilers and debuggers from major
third-parties (free versions up to 64 Kbytes of code, depending on third-party), completed
with innovative tools from STMicroelectronics.
Toolchains supporting all Nucleo boards are:
•EWARM v7.10.3 or later(a)
– 30-day evaluation edition
– 32-Kbyte Limited QuickStart edition (16-Kbyte limitation for Cortex M0)
•MDK-ARM v5.17 or later(a)(b)
– MDK-Lite (32-Kbyte code size limitation)
•TrueSTUDIO Lite v5 or later(b)
–Nolimitation
•SW4STM32 v1.5 and later(a)
– No limitation
Information on the toolchain version supporting the STM32 device is available on toolchain
release note at third-party web site.
a. Registration before the download is required.
b. The device support pack is separate from the MDK-ARM releases.

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3 ST-LINK/V2-1 installation
All the STM32 Nucleo boards include an ST-LINK/V2-1 embedded debug tool interface.
This interface needs a dedicated USB driver to be installed. This driver is available at the
www.st.com website and supported within the following software toolchains:
•IAR Embedded Workbench for ARM (EWARM).
The toolchain is installed by default in the C:\Program Files\IAR Systems\Embedded
Workbench x.x directory on the PC local hard disk.
After installing EWARM, install the ST-LINK/V2-1 driver by running
the ST-Link_V2_USB.exe from [IAR_INSTALL_DIRECTORY]\Embedded Workbench
x.x\arm\drivers\ST-Link \ST-Link_V2_USBdriver.exe.
•Keil Microcontroller Development Kit (MDK-ARM) toolchain.
The toolchain is installed by default in the C:\Keil directory on the PC local hard disk;
the installer creates a start menu µVision5 shortcut.
When connecting the ST-LINK/V2-1 tool, the PC detects new hardware and requires to
install the ST-LINK_V2_USB driver. The “Found New Hardware wizard” appears and
guides the user through the steps needed to install the driver from the recommended
location.
•Atollic TrueSTUDIO STM32.
The toolchain is installed by default in the C:\Program Files\Atollic directory on the PC
local hard disk.
The ST-Link_V2_USB.exe file is automatically installed when installing the software
toolchain.
•AC6 System Workbench for STM32 (SW4STM32).
The toolchain is installed by default in the C:\Program Files\AC6 directory on the PC
local hard disk.
The ST-Link_V2_USB.exe file is automatically executed when installing the software
toolchain.
Complementary information on the firmware package content and the STM32 Nucleo
requirements is available on the Getting started with the STM32 Nucleo board firmware
package UM1726 User manual at the www.st.com website.
Note: The embedded ST-LINK/V2-1 only supports SWD interface for STM32 devices.

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4 Firmware package
The STM32 Nucleo examples, applications and demonstration are provided in one single
.zip file. The extraction of the .zip file generates one folder, STM32 Nucleo_FW_VX.Y.Z,
which contains the following subfolders (see Figure 5).
Figure 5. Package contents
•Template project is a pre-configured project with empty main function to be
customized by the user. This is helpful to start creating an application based on the
peripherals drivers.
•Example project includes toolchain projects for each peripheral example ready to be
run.
•Applications includes set of applications ready to be run.
•Demonstration includes the demonstration firmware ready to be run.
4.1 Executing and debugging firmware using software
toolchains
The steps below can be applied to an already existing example, demonstration or template
project available from STM32_Nucleo_FW_VX.Y.Z firmware at the www.st.com website.
First of all, the user must read the firmware/readme.txt file, which contains the firmware
description and hardware/software requirements.

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4.1.1 EWARM toolchain
The following procedure explains how to compile, link and execute an existing EWARM
project.
1. Open IAR Embedded Workbench for ARM (EWARM). Figure 6 shows the basic names
of the windows referred to in this document:
Figure 6. IAR Embedded Workbench IDE
2. In the File menu, select Open and click Workspace to display the Open Workspace
dialog box. Browse to select either an example or demonstration or template
workspace file and click Open to launch it in the Project window.
3. In the Project menu, select Rebuild All to compile the project.
4. If the project is successfully compiled, Figure 7 is displayed.
Figure 7. EWARM project successfully compiled
To change the project settings (Include and preprocessor defines), go through the
following project options:
– For Include directories:
Project>Options…>C/C++ compiler>
– For pre-processor defines:
Project>Options…C/C++ compiler>pre-processor>

Firmware package UM1727
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5. In IAR Embedded Workbench IDE, from the Project menu, select Download and
Debug or, alternatively, click the Download and Debug button in the toolbar, to
program the Flash memory and start debugging (see Figure 8).
Figure 8. Download and debug button
6. The debugger in IAR Embedded Workbench can be used to debug source code at C
and assembly levels, set breakpoints, monitor individual variables and watch events
during the code execution (see Figure 9).
Figure 9. IAR Embedded Workbench debugger screen
To run the application from the Debug menu, select Go. Alternatively, click the Go
button in the toolbar to run the application (see Figure 10).