Segger J-Link-OB-STM32F103 User manual

J-Link-OB-
STM32F103
User guide of the onboard debug
probe based on STM32F103 MCU
Document: UM08023
Revision: 1
Date: January 18, 2018
A product of SEGGER Microcontroller GmbH
www.segger.com

2
Disclaimer
Specifications written in this document are believed to be accurate, but are not guaranteed to
be entirely free of error. The information in this manual is subject to change for functional or
performance improvements without notice. Please make sure your manual is the latest edition.
While the information herein is assumed to be accurate, SEGGER Microcontroller GmbH (SEG-
GER) assumes no responsibility for any errors or omissions. SEGGER makes and you receive no
warranties or conditions, express, implied, statutory or in any communication with you. SEGGER
specifically disclaims any implied warranty of merchantability or fitness for a particular purpose.
Copyright notice
You may not extract portions of this manual or modify the PDF file in any way without the prior
written permission of SEGGER. The software described in this document is furnished under a
license and may only be used or copied in accordance with the terms of such a license.
© 2004-2017 SEGGER Microcontroller GmbH, Hilden / Germany
Trademarks
Names mentioned in this manual may be trademarks of their respective companies.
Brand and product names are trademarks or registered trademarks of their respective holders.
Contact address
SEGGER Microcontroller GmbH
In den Weiden 11
D-40721 Hilden
Germany
Tel. [phone]
Fax. [phone]
E-mail: [email protected]
Internet: www.segger.com
J-Link-OB-STM32F103 User Guide (UM08023) © 2004-2017 SEGGER Microcontroller GmbH

3
Manual versions
This manual describes the current version. If you find an error in the manual, please report it to
us and we will try to assist you as soon as possible.
Contact us for further information on topics that are not yet documented.
Print date: January 18, 2018
Manual
version Revision Date By Description
0.00 1 171012 NG Initial Version
J-Link-OB-STM32F103 User Guide (UM08023) © 2004-2017 SEGGER Microcontroller GmbH

4
J-Link-OB-STM32F103 User Guide (UM08023) © 2004-2017 SEGGER Microcontroller GmbH

5
About this document
Assumptions
This document assumes that you already have a solid knowledge of the following:
• The software tools used for building your application (assembler, linker, C compiler).
• The C programming language.
• The target processor.
• DOS command line.
If you feel that your knowledge of C is not sufficient, we recommend The C Programming Lan-
guage by Kernighan and Richie (ISBN 0–13–1103628), which describes the standard in C pro-
gramming and, in newer editions, also covers the ANSI C standard.
How to use this manual
This manual explains all the functions and macros that the product offers. It assumes you have
a working knowledge of the C language. Knowledge of assembly programming is not required.
Typographic conventions for syntax
This manual uses the following typographic conventions:
Style Used for
Body Body text.
Keyword Text that you enter at the command prompt or that appears on
the display (that is system functions, file- or pathnames).
Parameter Parameters in API functions.
Sample Sample code in program examples.
Sample comment Comments in program examples.
Reference Reference to chapters, sections, tables and figures or other doc-
uments.
GUIElement Buttons, dialog boxes, menu names, menu commands.
Emphasis Very important sections.
J-Link-OB-STM32F103 User Guide (UM08023) © 2004-2017 SEGGER Microcontroller GmbH

6
J-Link-OB-STM32F103 User Guide (UM08023) © 2004-2017 SEGGER Microcontroller GmbH

7
Table of contents
1 Why J-Link OB? ............................................................................................................8
2 Supported target CPU cores ........................................................................................ 9
3 Supported target interfaces ........................................................................................ 10
3.1 Target interface pins .....................................................................................11
3.2 Target interface JTAG ................................................................................... 12
3.3 Target interface SWD ....................................................................................13
4 Compatible MCUs as J-Link OB host .........................................................................14
5 Schematics ..................................................................................................................15
6 Glossary ......................................................................................................................16
J-Link-OB-STM32F103 User Guide (UM08023) © 2004-2017 SEGGER Microcontroller GmbH

Chapter 1
Why J-Link OB?
The J-Link on-board (J-Link OB) was designed in order to provide a low-cost, space-saving
and on-board alternative to the general J-Link, for eval board manufacturers. J-Link OB can
be used with the same software package as the general J-Links and can be used with the
same utilities (as far as the feature set of the J-Link OB supports this)
Note
It is not allowed to use J-Link-OB-STM32F103 for stand-alone emulators.
J-Link-OB-STM32F103 User Guide (UM08023) © 2004-2017 SEGGER Microcontroller GmbH

Chapter 2
Supported target CPU cores
For a list of cores supported by this J-Link OB model, please refer to here:
J-Link OB Model overview
J-Link-OB-STM32F103 User Guide (UM08023) © 2004-2017 SEGGER Microcontroller GmbH

Chapter 3
Supported target interfaces
The J-Link-OB-STM32F103 supports the following target interfaces:
• JTAG
• SWD (+ SWO)
It may therefore be used for ARM7/9 target CPUs or other target CPUs with JTAG connection
or Cortex-M targets with JTAG or Serial Wire Debug connection.
J-Link-OB-STM32F103 User Guide (UM08023) © 2004-2017 SEGGER Microcontroller GmbH