Phytec KEIL nanoMODUL-STM32F103 Programming manual

A product of a PHYTEC Technology Holding company
QuickStart Instructions
KEIL-Kit
nanoMODUL-STM32F103
Using Keil's ULINK and the Keil Microcontroller
Development Tool Chain
Note: The PHYTEC Kit CD includes the electronic version of
the English nanoMODUL-STM32F103 Hardware Manual
Edition: August 2009

nanoMODUL-STM32F103 QuickStart Instructions
© PHYTEC Messtechnik GmbH, Germany 2009 L-739e_2
In this manual are descriptions for copyrighted products that are not explicitly
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The information in this document has been carefully checked and is believed to be
entirely reliable. However, PHYTEC Messtechnik GmbH assumes no responsibility
for any inaccuracies. PHYTEC Messtechnik GmbH neither gives any guarantee nor
accepts any liability whatsoever for consequential damages resulting from the use of
this manual or its associated product. PHYTEC Messtechnik GmbH reserves the
right to alter the information contained herein without prior notification and accepts
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Additionally, PHYTEC Messtechnik GmbH offers no guarantee nor accepts any
liability for damages arising from the improper usage or improper installation of the
hardware or software. PHYTEC Messtechnik GmbH further reserves the right to alter
the layout and/or design of the hardware without prior notification and accepts no
liability for doing so.
© Copyright 2009 PHYTEC Messtechnik GmbH, D-55129 Mainz.
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reproduction and storage or processing in computer systems, in whole or in part -
are reserved. No reproduction may be made without the explicit written consent from
PHYTEC Messtechnik GmbH.
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Address: PHYTEC Technologie Holding AG
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D-55129 Mainz
GERMANY
PHYTEC America LLC
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Bainbridge Island, WA 98110
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Ordering
Information: [phone]
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Support: [phone]
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Web Site: http://www.phytec.de http://www.phytec.com
2nd Edition: August 2009

Contents
© PHYTEC Messtechnik GmbH, Germany 2009 L-739e_2
1Introduction to the Rapid Development Kit............................................... 1
1.1 Rapid Development Kit Documentation ........................................... 1
1.2 Overview of this QuickStart Instruction ............................................ 1
2System Description .................................................................................. 2
2.1 Hardware Description....................................................................... 2
2.2 Host System Requirements.............................................................. 2
2.3 The PHYTEC nanoMODUL-STM32F103......................................... 3
2.4 Keil RealView Microcontroller Development Kit............................... 3
3Getting Started ......................................................................................... 4
3.1 Installing Rapid Development Kit Software...................................... 4
3.1.1 Installing Documentation from PHYTEC Kit CD................... 4
3.1.2 Installing Keil Microcontroller Development Tools................ 5
3.2 Interfacing the nanoMODUL-STM32F103 to a Host-PC.................. 6
3.3 Downloading Blinky Example Code with μVision3........................... 7
3.3.1 Build the Project.................................................................... 9
3.3.2 Start the Debugger and Download to nanoMODUL............. 9
4Debugging.............................................................................................. 11
4.1 Keil µVision3 Debug Features........................................................ 11
4.2 Debugging Modes .......................................................................... 13
4.3 Starting the Debugger .................................................................... 15
5Internal Flash Programming................................................................... 16
5.1 Loading the Blinky Application to internal Flash............................. 16
6Getting More Involved.......................................................................... 17
6.1 Creating a New Project................................................................... 17

Introduction
© PHYTEC Messtechnik GmbH, Germany 2009 L-739e_2 1
1Introduction to the Rapid Development Kit
The nanoMODUL-STM32F103 module is designed to be plugged into a PHYTEC Carrier Board. The
PHYTEC Carrier Board contains the I/O connectors as well as any other interface circuitry not
provided on the nanoMODUL module itself. The nanoMODUL module, combined with the PHYTEC
Carrier Board, provides a platform to jump start embedded designs and propel concept to prototype
and finished product.
Each PHYTEC Rapid Development Kit contains an nanoMODUL-STM32F103 module mounted on an
applicable Carrier Board, cables, power supply, printed schematics, applicable evaluation software
development tool CDs, and the PHYTEC Kit CD. The PHYTEC Kit CD-ROM provides this QuickStart
guide, complete electronic documentation and demo programs.
1.1 Rapid Development Kit Documentation
This Rapid Development Kit (RDK) includes the following documentation on the enclosed PHYTEC
Kit CD:
•the PHYTEC nanoMODUL-STM32F103 Hardware Manual
•controller User's Manuals and Data Sheets
•this QuickStart Instruction
1.2 Overview of this QuickStart Instruction
This QuickStart Instruction provides a general kit description, as well as software installation hints and
example programs. It is structured as follows:
1. The "Getting Started" section describes how to interface the nanoMODUL-STM32F103 target
hardware to a host PC and uses the Blinky example project to demonstrate the download of
user code to the internal Flash using the Keil ULINK and Keil RealView Microcontroller
Development Tools.
2. The "Debugging" section introduces the main debugging features using a new target within
the Blinky example project and uses the Blinky example project to demonstrate the
download of user code to the external SDRAM using the Keil ULINK and Keil Microcontroller
Development Tools.
3. The "Getting More Involved" section provides instructions for creating a new project with the
Blinky project as a template.

nanoMODUL-STM32F103 QuickStart Instructions
2 © PHYTEC Messtechnik GmbH, Germany 2009 L-739e_2
2System Description
2.1 Hardware Description
The following PHYTEC hardware components are included in the nanoMODUL-STM32F103 Keil
Rapid Development Kit (part number KNM-103-KEIL) and are necessary for completing the
instructions in this QuickStart instruction:
•the PHYTEC nanoMODUL-STM32F103 (NM-103)
•the nanoMODUL-STM32F103 Carrier Board (NM-999)
•AC adapter supplying 12V
•Serial cable
•USB Standard A to B cable
•Hard copy schematics
•Keil ULINK2 JTAG-USB adapter1
•PHYTEC Kit CD
•Keil Microcontroller Development Tools Evaluation CD
2.2 Host System Requirements
•This QuickStart guide will require the installation of Keil ARM/µVision3 software development tool
chain
•Operating System: Windows 2000, Windows XP or Windows Vista
•CPU architecture: Any x86 32-bit or 64-bit (x64: AMD64 or Intel EM64T) processor
•60 MB Free Hard Disk Space
•128 MB of RAM
1: The Keil ULINK2 is included in the Rapid Development Kit version with the part number KPCM-044-KEIL.

System Description
2.3 The PHYTEC nanoMODUL-STM32F103
The nanoMODUL-STM32F103 is an CORTEX M3 based, small form factor, OEMable module
populated with the ST-Microelectronics STM32F103ZE controller. Rich peripherals such as USB
Client, make this module the ideal candidate for embedded applications requiring high performance
and low power consumption. Other chip-level features include 3 x 12-bit ADCs with up to 16
channels, 2 channels 12-bit DAC, 2 UART’s, SPI, I2C, a real-time clock with a separate power
domain, and NAND Flash. These features make the devices particularly suitable for automotive and
industrial control applications as well as medical systems.
Please refer to the nanoMODUL-STM32F103 Hardware Manual for specific information on board-
level features, jumper configuration, memory mapping, pin layout, and Carrier Board features.
2.4 Keil RealView Microcontroller Development Kit
The Keil RealView Microcontroller Development Tools for ARM7, ARM9, and Cortex-M3
microcontrollers are easy to learn and use, yet powerful enough for the most demanding embedded
applications. The RealView C/C++ compiler supports all ARM-compatible devices including the ST-
Microelectronics STM32F103 device. For a complete list of supported ARM derivatives go to:
http://www.keil.com/arm/chips.asp
µVision3, the latest version of Keil's popular IDE, combines project management, source code editing,
program debugging, and Flash programming in a single, powerful environment. This QuickStart
provides an overview of the most commonly used µVision3 features. For more information on Keil
ARM/µVision3 tools visit their website at:
http://www.keil.com/arm/
For more information and example updates, please refer to the following sources:
http://www.phytec.com - or - http://www.phytec.de
[email protected] - or - [email protected]
http://www.keil.com
[email protected]
© PHYTEC Messtechnik GmbH, Germany 2009 L-739e_2 3

QuickStart Instructions
4 © PHYTEC Messtechnik GmbH, Germany 2009 L-739e_2
3Getting Started
What you will learn with this Getting Started example:
•installing Rapid Development Kit software
•interfacing the nanoMODUL-STM32F103, mounted on the Carrier Board, to a host-PC using the
Keil ULINK2
•downloading example user code to the nanoMODUL-STM32F103 internal flash.
3.1 Installing Rapid Development Kit Software
3.1.1 Installing Documentation from PHYTEC Kit CD
The PHYTEC Kit CD installs documentation, datasheets, and demo files for the nanoMODUL-
STM32F103. When you insert the PHYTEC Kit CD into the CD-ROM drive of your host-PC, the CD
should automatically launch a setup program. Otherwise the setup program (setup.exe) can be
manually executed from the root of the CD.
1. Insert the PHYTEC Kit CD.
2. On the Welcome to the nanoMODUL-STM32F103 Product CD Setup window, select Next to
continue.
3. Keep C:\PHYTEC\nanoMODUL-STM32F103 as the installation path and select Next to continue.
4. Keep nanoMODUL-STM32F103 as the Program Folder and select Next to install.
5. After the installation process is complete, select Finish.
The PHYTEC Kit CD installation path is C:\PHYTEC\nanoMODUL-STM32F103 and the following five
subfolders are located within the nanoMODUL-STM32F103 directory:
AppNotes – This folder is empty.
Datasheets – This folder contains product related datasheets.
extended Files – This folder contains the STMicroelectronics STM32 Function Library.
Keil-Kit – This folder contains this Quickstart Manual and the demo software.
Manual – This folder contains the hardware manual.

Getting Started
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3.1.2 Installing Keil Microcontroller Development Tools
When you insert the Keil Microcontroller Development Tools CD into the CD-ROM drive of your host-
PC, the CD should automatically launch a setup program that installs the required software.
Otherwise the setup program (.exe) can be manually executed from the root folder of the CD.
•Install the Keil ARM Evaluation tools, from the enclosed Keil Microcontroller Development Tools
CD, following the steps indicated in the install procedure.
•Alternately, the Keil ARM Evaluation tools can be installed from:
https://www.keil.com/demo/eval/arm.htm

QuickStart Instructions
3.2 Interfacing the nanoMODUL-STM32F103 to a Host-PC
Connecting the nanoMODUL-STM32F103, mounted on the nanoMODUL-STM32F103 Carrier Board,
to your computer is simple.
•Ensure proper jumper settings on the nanoMODUL-STM32F103 Carrier Board as indicated in the
nanoMODUL-STM32F103 Hardware Manual.
•Connect the 2.54 mm pitch ribbon cable from the Keil ULINK2 JTAG adapter to the JTAG
connector on the nanoMODUL Carrier Board.
•Connect the USB end of the ULINK JTAG adapter to the USB port of your host-PC using the
included USB cable.
•Connect the included 12V power adapter to the power sockets X24V and X24VIO and be shure
you take the right polarity as marked with + and – on the carrier board.
•Several red LEDs should light. This indicates that proper voltage is supplied to the nanoMODUL
and Carrier Board.
•The nanoMODUL and Carrier Board should now be properly connected to a host PC via the Keil
ULINK. You are now ready to use the Keil Development Tools to establish communication
between the host-PC and target hardware.
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Getting Started
3.3 Downloading Blinky Example Code with μVision3
The μVision3 evaluation software development tool chain should have been installed as described in
section 3.1.2.
•Start the tool chain by selecting Keil μVision3 from within the programs group: Start \ Programs \
Keil
μ Vision3 or by double-clicking on the Keil μVision3 icon on your desktop.
After you start μVision3, the window shown below appears. From this window you can create
projects, edit files, configure tools, assemble, link and start the debugger. Close all projects that might
be open by selecting Project \ Close Project.
The Blinky project, when executed, manipulates a user LED on the nanoMODUL. The Blinky
example contains one target:
−nanoModul-STM32F103: configured for on-chip flash
Open Blinky project by selecing Project / Open Project from the μVision3 menu and browse to
C:\PHYTEC\nanoMODUL-STM32F103\Keil-Kit\Quickstart\Demos\Blinky
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QuickStart Instructions
Select the Blinky.Uv2 projectfile and click Open.
If the Blinky.c source file is not already visible in the editor window you can open it by double-clicking
on its file name in the project workspace:
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Getting Started
3.3.1 Build the Project
•Build the target by either selecting the Build Target icon on the build toolbar or by selecting
Project / Build target in the main menu bar.
•If any source file of the project contains any errors, they will be shown in the Output Window -
Build tab. You can use the editor to correct the error(s) in the source code, to save the file and to
repeat the build.
•If there are no errors, the code is ready to be downloaded into the internal RAM.
3.3.2 Start the Debugger and Download to nanoMODUL
•To start the µVision3 debug environment, click the debugger icon on the μVision3 toolbar or
select Debug / Start/Stop Debug Session from the main menu bar.
•While using the µVision3 Evaluation Tools, the following warning will appear. Please select OK
and continue.
•You will see a blue status bar from left to right at the bottom of your screen indicating the
download process of the debug program.
If a problem occurs during data transfer, an error message will be displayed. If "No JTAG Devices
Found" error should occur, make sure the target hardware is properly connected to a power supply
and the host-PC using the Keil ULINK device (refer to section 3.2).
If the data transfer was successful, a screen similar to the one shown below will appear. The Project
Workspace window changes to the Register page. The debug toolbar is also displayed. In the lower
part of the debug screen you will see the Command window.
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QuickStart Instructions
You may need to open, resize and /or move some windows to make your screen look similar to the
screen capture. You can open inactive windows by choosing the desired window from the View pull
down menu.
The debugger will run to the 'main' function and stop automatically. Notice the yellow arrow pointing to
the first command in the 'main' function. Also notice the program counter R15 (PC) within the Project
Window – Register page showing the start address of the 'main' function.
•Click on the Run icon and the program will run.
Successful execution of the program will blink LED D1 on the nanoMODUL.
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Debugging
4Debugging
What you will learn with this example:
•familiarizing yourself with simple debug functions provided by the Keil µVision3 debug
environment
•downloading example user code in the nanoMODUL
This Debugging section provides a basic introduction to the debug functions included in the Keil
ARM/µVision3 evaluation tool chain. For a more detailed description of the debugging features,
please refer to the appropriate manuals provided by Keil.
4.1 Keil µVision3 Debug Features
•The Debugger window toolbar gives access to the following debug commands: Reset, Run, Stop,
Step Into, Step Over, Step Out and Run to Cursor line.
Reset
Run
Stop
Step Into
Step Over
Step Out
R
un to Cursor line
•The first button on the debugger toolbar is the Reset button. The Reset command sets the
program counter to 0.
•The button to the right of the Reset button starts the Run command. Clicking this button runs
the program without active debug functions. To stop program execution at a desired point, a
breakpoint can be placed before the Run button is pushed.
•The next button on the debugger toolbar is the Stop button. The Stop button interrupts and
stops the running program at an undetermined location.
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QuickStart Instructions
•The first button allowing exact control of the program execution is the Step Into button.
The Step Into command performs the execution of the command line to which the Current-
Statement Arrow points. This can be a C command line or a single assembler line, depending on
the current display mode. If the command line is a function call, Step Into jumps to the C function
or subroutine, enabling you to explore the code contained in the accessed subroutine.
•The Step Over button is next on the debugger toolbar.
The Step Over command executes the command line, to which the Current-Statement Arrow
points. This can be a C command line or a single assembler line, depending on the current
display mode. If the command line is a function call, the function will be executed without single
stepping into the function.
•The next button is the Step Out button.
Step Out is used to exit a function you are currently in. Step Out is very useful if you find yourself
in a function you are not interested in and need to return quickly to your intended function.
•The last button on the debugger toolbar performs the Run to Cursor line command.
The Run to Cursor line command executes the program to the current cursor position within the
code window. This allows use of the cursor line as a temporary breakpoint.
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Debugging
4.2 Debugging Modes
If You have still Debug Session active, please stop it by clicking again the debugger icon on the
μVision3 toolbar or selecting again Debug / Start/Stop Debug Session from the main menu bar. Be
sure that nanoMODUL-STM32F103 is selected in Project Workspace:
The µVision3 Debugger offers two operating modes that can be selected in the Project / Options for
Target ‘nanoMODUL-STM32F103’ dialog under Tab ‘Debug’:
•The Simulator allows PC-based simulation of most features of the STM32F103 microcontroller
without actually having target hardware. You can test and debug your embedded application
before the hardware is ready. µVision3 simulates a wide variety of peripherals, including external
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QuickStart Instructions
I/O and timers. The peripheral set is configured when you select a CPU from the device database
for your target.
•USB-JTAG debugging interface adapters such as the Keil ULINK allow target-based debugging.
With the ULINK interface you may connect directly to the target hardware using the JTAG
interface. Debugging on the target hardware also enables the testing of peripheral components of
the application and real-time program execution.
The Blinky demo in this section utilizes the ULINK Cortex Debugger environment.
•The ULINK Cortex Debugger settings can be viewed by selecting the Settings button:
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Debugging
4.3 Starting the Debugger
•Open the Blinky project as described in section 3.3
•In the Select Target pull-down menu select the nanoMODUL-STM32F103 target.
•To start the ARM/µVision3 debug environment, click on the debugger icon on the μVision3
toolbar.
•Click on the Run icon and the program will run.
Successful execution of the program will blink LED D1 on the nanoMODUL.
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QuickStart Instructions
5Internal Flash Programming
What you will learn with this example:
•downloading example user code to internal Flash memory using ARM/µVision3 tools
5.1 Loading the Blinky Application to internal Flash
This section shows how to download the Blinky executable into internal Flash of nanoMODUL
•Open the Blinky project as described in section 3.3
•In the Select Target pull-down menu be sure that the nanoMODUL-STM32F103 target is
selected.
•Download the code into Flash memory by either selecting the Download to Flash Memory icon
on the build toolbar or in the main menu bar select Flash / Download.
•The individual steps of the Flash download procedure can be viewed at the bottom of the
μVision3 Output Window - Build tab.
•Wait until the programming is complete. This is indicated by the "Verify OK" message. The
download utility will perform a reset and code will execute without further user interaction.
Successful execution of the program will blink LED D1 on nanoMODUL.
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