===================
OpenOCD provides on-chip programming and debugging support with a
-layered architecture of JTAG interface and TAP support, debug target
-support (e.g. ARM, MIPS), and flash chip drivers (e.g. CFI, NAND, etc.).
-Several network interfaces are available for interactiving with OpenOCD:
-HTTP, telnet, TCL, and GDB. The GDB server enables OpenOCD to function
-as a "remote target" for source-level debugging of embedded systems
-using the GNU GDB program.
+layered architecture of JTAG interface and TAP support including:
+
+- (X)SVF playback to faciliate automated boundary scan and FPGA/CPLD
+ programming;
+- debug target support (e.g. ARM, MIPS): single-stepping,
+ breakpoints/watchpoints, etc;
+- flash chip drivers (e.g. CFI, NAND, internal flash);
+- embedded TCL intepreter for easy scripting.
+
+Several network interfaces are available for interacting with OpenOCD:
+telnet, TCL, and GDB. The GDB server enables OpenOCD to function as a
+"remote target" for source-level debugging of embedded systems using
+the GNU GDB program (and the others who talk GDB protocol, e.g. IDA
+Pro).
This README file contains an overview of the following topics:
+
+- quickstart instructions,
- how to find and build more OpenOCD documentation,
-- the build process
+- list of the supported hardware,
+- the installation and build process,
- packaging tips.
-- configuration options
+
+
+============================
+Quickstart for the impatient
+============================
+
+If you have a popular board then just start OpenOCD with its config,
+e.g.:
+
+ openocd -f board/stm32f4discovery.cfg
+
+If you are connecting a particular adapter with some specific target,
+you need to source both the jtag interface and the target configs,
+e.g.:
+
+ openocd -f interface/ftdi/jtagkey2.cfg -f target/ti_calypso.cfg
+
+NB: when using an FTDI-based adapter you should prefer configs in the
+ftdi directory; the old configs for the ft2232 are deprecated.
+
+After OpenOCD startup, connect GDB with
+
+ (gdb) target extended-remote localhost:3333
+
=====================
OpenOCD Documentation
=====================
-In addition to in-tree documentation, the latest documentation may be
-viewed on-line at the following URLs:
+In addition to the in-tree documentation, the latest manuals may be
+viewed online at the following URLs:
- OpenOCD User's Guide:
+ OpenOCD User's Guide:
http://openocd.sourceforge.net/doc/html/index.html
- OpenOCD Developer's Manual:
+ OpenOCD Developer's Manual:
http://openocd.sourceforge.net/doc/doxygen/html/index.html
These reflect the latest development versions, so the following section
introduces how to build the complete documentation from the package.
-
For more information, refer to these documents or contact the developers
by subscribing to the OpenOCD developer mailing list:
Building the OpenOCD Documentation
----------------------------------
-The OpenOCD User's Guide can be produced in two different format:
+By default the OpenOCD build process prepares documentation in the
+"Info format" and installs it the standard way, so that "info openocd"
+can access it.
+
+Additionally, the OpenOCD User's Guide can be produced in the
+following different formats:
# If PDFVIEWER is set, this creates and views the PDF User Guide.
make pdf && ${PDFVIEWER} doc/openocd.pdf
architecture and other details about the code:
# NB! make sure doxygen is installed, type doxygen --version
- make doxygen
+ make doxygen && ${HTMLVIEWER} doxygen/index.html
+
+
+==================
+Supported hardware
+==================
+
+JTAG adapters
+-------------
- # If HTMLVIEWER is set, this views the HTML Doxygen output.
- ${HTMLVIEWER} doxygen/index.html
+AICE, ARM-JTAG-EW, ARM-USB-OCD, ARM-USB-TINY, AT91RM9200, axm0432,
+BCM2835, Bus Blaster, Buspirate, Chameleon, Cortino, DLC 5,
+DLP-USB1232H, embedded projects, eStick, FlashLINK, FlossJTAG,
+Flyswatter, Flyswatter2, Hoegl, ICDI, ICEBear, J-Link, JTAGkey,
+JTAGkey2, JTAG-lock-pick, KT-Link, Lisa/L, LPC1768-Stick, MiniModule,
+NGX, NXHX, OOCDLink, Opendous, OpenJTAG, Openmoko, OpenRD, OSBDM,
+Presto, Redbee, RLink, SheevaPlug devkit, Stellaris evkits, ST-LINK,
+STM32-PerformanceStick, STR9-comStick, sysfsgpio, TUMPA, Turtelizer,
+ULINK, USB-A9260, USB-Blaster, USB-JTAG, USBprog, VPACLink, VSLLink,
+Wiggler, XDS100v2, Xverve.
+
+Debug targets
+-------------
+
+ARM11, ARM7, ARM9, AVR32, Cortex-A, Cortex-R, Cortex-M,
+Feroceon/Dragonite, DSP563xx, DSP5680xx, FA526, MIPS EJTAG, NDS32,
+XScale.
+
+Flash drivers
+-------------
+
+ADUC702x, AT91SAM, AVR, CFI, DSP5680xx, EFM32, EM357, FM3, Kinetis,
+LPC2000, LPC2900, LPCSPIFI, PIC32mx, Stellaris, STM32, STMSMI, STR7x,
+STR9x; NAND controllers of AT91SAM9, LPC3180, LPC32xx, i.MX31, MXC,
+NUC910, Orion/Kirkwood, S3C24xx, S3C6400.
-The remaining sections describe how to configure the system such that
-you can build the in-tree documentation.
==================
Installing OpenOCD
==================
-On Linux, you may have permissions problems to address. The best way
-to do this is to use the contrib/openocd.udev rules file. It probably
-belongs somewhere in /etc/udev/rules.d, but consult your operating
-system documentation to be sure. In particular, make sure that it
-matches the syntax used by your operating system's version of udev.
-
A Note to OpenOCD Users
-----------------------
operating system or JTAG interface supplier may provide binaries for
you in a convenient-enough package.
-Such packages may be more stable than git mainline, where bleeding-edge
-development takes place. These "Packagers" produce binary releases of
-OpenOCD after the developers produces new "release" versions of the
-source code. Previous versions of OpenOCD cannot be used to diagnose
-problems with the current release, so users are encouraged to keep in
-contact with their distribution package maintainers or interface vendors
-to ensure suitable upgrades appear regularly.
+Such packages may be more stable than git mainline, where
+bleeding-edge development takes place. These "Packagers" produce
+binary releases of OpenOCD after the developers produces new "release"
+versions of the source code. Previous versions of OpenOCD cannot be
+used to diagnose problems with the current release, so users are
+encouraged to keep in contact with their distribution package
+maintainers or interface vendors to ensure suitable upgrades appear
+regularly.
Users of these binary versions of OpenOCD must contact their Packager to
ask for support or newer versions of the binaries; the OpenOCD
You are a PACKAGER of OpenOCD if you:
-- Sell dongles: and include pre-built binaries
-- Supply tools: A complete development solution
-- Supply IDEs: like Eclipse, or RHIDE, etc.
-- Build packages: RPM files, or DEB files for a Linux Distro
+- Sell dongles and include pre-built binaries;
+- Supply tools or IDEs (a development solution integrating OpenOCD);
+- Build packages (e.g. RPM or DEB files for a GNU/Linux distribution).
As a PACKAGER, you will experience first reports of most issues.
When you fix those problems for your users, your solution may help
That said, the OpenOCD developers would also like you to follow a few
suggestions:
-- Send patches, including config files, upstream.
-- Always build with printer ports enabled.
-- Use libftdi + libusb for FT2232 support.
+- Send patches, including config files, upstream, participate in the
+ discussions;
+- Enable all the options OpenOCD supports, even those unrelated to your
+ particular hardware;
+- Use "ftdi" interface adapter driver for the FTDI-based devices.
+
+As a PACKAGER, never link against the FTD2XX library, as the resulting
+binaries can't be legally distributed, due to the restrictions of the
+GPL.
-Remember, the FTD2XX library cannot be used in binary distributions, due
-to restrictions of the GPL v2.
================
Building OpenOCD
================
The INSTALL file contains generic instructions for running 'configure'
-and compiling the OpenOCD source code. That file is provided by default
-for all GNU automake packages. If you are not familiar with the GNU
-autotools, then you should read those instructions first.
+and compiling the OpenOCD source code. That file is provided by
+default for all GNU autotools packages. If you are not familiar with
+the GNU autotools, then you should read those instructions first.
The remainder of this document tries to provide some instructions for
those looking for a quick-install.
OpenOCD Dependencies
--------------------
-Presently, GCC is required to build OpenOCD. The developers have begun
-to enforce strict code warnings (-Wall, -Werror, -Wextra, and more) and
-use C99-specific features: inline functions, named initializers, mixing
-declarations with code, and other tricks. While it may be possible to
-use other compilers, they must be somewhat modern and could require
-extending support to conditionally remove GCC-specific extensions.
-
-Also, you need to install the appropriate driver files, if you want to
-build support for a USB or FTDI-based interface:
-
-- ft2232, jlink, rlink, vsllink, usbprog, arm-jtag-ew:
- - libusb: required for portable communication with USB dongles
-- ft2232 also requires:
- - libftdi: http://www.intra2net.com/opensource/ftdi/ *OR*
- - ftd2xx: http://www.ftdichip.com/Drivers/D2XX.htm,
- or the Amontec version (from http://www.amontec.com), for
- easier support of JTAGkey's vendor and product IDs.
-
-Many Linux distributions provide these packages through their automated
-installation and update mechanisms; however, some Linux versions include
-older versions of libftdi. In particular, using Ubuntu 8.04 has been
-problematic, but newer versions of Ubuntu do not have this problem.
-
-Compiling OpenOCD
------------------
-
-To build OpenOCD (on both Linux and Cygwin), use the following sequence
-of commands:
+GCC or Clang is currently required to build OpenOCD. The developers
+have begun to enforce strict code warnings (-Wall, -Werror, -Wextra,
+and more) and use C99-specific features: inline functions, named
+initializers, mixing declarations with code, and other tricks. While
+it may be possible to use other compilers, they must be somewhat
+modern and could require extending support to conditionally remove
+GCC-specific extensions.
- ./configure [with some options listed in the next section]
- make
- make install
+You'll also need:
-The 'configure' step generates the Makefiles required to build OpenOCD,
-usually with one or more options provided to it. The first 'make' step
-will build OpenOCD and place the final executable in ./src/. The
-final (optional) step, ``make install'', places all of the files in the
-required location.
+- make
+- libtool
-Cross-Compiling Options
------------------------
-
-To cross-compile, you must specify both --build and --host options to
-the 'configure' script. For example, you can configure OpenOCD to
-cross-compile on a x86 Linux host to run on Windows (MinGW32), you could
-use the following configuration options:
-
- ./configure --build=i686-pc-linux-gnu --host=i586-mingw32msvc ...
-
-Likewise, the following options allow OpenOCD to be cross-compiled for
-an ARM target on the same x86 host:
-
- ./configure --build=i686-pc-linux-gnu --host=arm-elf ...
-
-Both must be specified to work around bugs in autoconf.
-
-Scripts for producing ARM cross-compilers can be found on the web with a
-little searching. A script to produce an x86 Linux-hosted MinGW32
-cross-compiler can be downloaded from the following URL:
-
- http://www.mingw.org/wiki/LinuxCrossMinGW
-
-Configuration Options
----------------------
+Additionally, for building from git:
-The configure script takes numerous options, specifying which JTAG
-interfaces should be included (among other things). The following list
-of options was extracted from the output of './configure --help'. Other
-options may be available there:
+- autoconf >= 2.59
+- automake >= 1.9
+- texinfo
- --enable-dummy Enable building the dummy JTAG port driver
+USB-based adapters depend on libusb-1.0 and some older drivers require
+libusb-0.1 or libusb-compat-0.1.
- --enable-parport Enable building the pc parallel port driver
- --disable-parport-ppdev Disable use of ppdev (/dev/parportN) for parport
- (for x86 only)
- --enable-parport-giveio Enable use of giveio for parport (for CygWin only)
+USB-Blaster, ASIX Presto, OpenJTAG and ft2232 interface adapter
+drivers need either one of:
+ - libftdi: http://www.intra2net.com/en/developer/libftdi/index.php
+ - ftd2xx: http://www.ftdichip.com/Drivers/D2XX.htm (proprietary,
+ GPL-incompatible)
- --enable-ftdi Enable building support for the MPSSE mode of FTDI
- based devices, using libusb-1.0 in asynchronous mode
+Permissions delegation
+----------------------
- --enable-ft2232_libftdi Enable building support for FT2232 based devices
- using the libftdi driver, opensource alternate of
- FTD2XX
- --enable-ft2232_ftd2xx Enable building support for FT2232 based devices
- using the FTD2XX driver from ftdichip.com
+Running OpenOCD with root/administrative permissions is strongly
+discouraged for security reasons.
- --enable-usb_blaster_libftdi
- Enable building support for the Altera USB-Blaster
- using the libftdi driver, opensource alternate of
- FTD2XX
- --enable-usb_blaster_ftd2xx
- Enable building support for the Altera USB-Blaster
- using the FTD2XX driver from ftdichip.com
+For USB devices on GNU/Linux you should use the contrib/openocd.udev
+rules file. It probably belongs somewhere in /etc/udev/rules.d, but
+consult your operating system documentation to be sure. Do not forget
+to add yourself to the "plugdev" group.
- --enable-amtjtagaccel Enable building the Amontec JTAG-Accelerator driver
+For parallel port adapters on GNU/Linux and FreeBSD please change your
+"ppdev" (parport* or ppi*) device node permissions accordingly.
- --enable-zy1000-master Use ZY1000 JTAG master registers
- --enable-zy1000 Enable ZY1000 interface
+For parport adapters on Windows you need to run install_giveio.bat
+(it's also possible to use "ioperm" with Cygwin instead) to give
+ordinary users permissions for accessing the "LPT" registers directly.
- --enable-ioutil Enable ioutil functions - useful for standalone
- OpenOCD implementations
-
- --enable-ep93xx Enable building support for EP93xx based SBCs
-
- --enable-at91rm9200 Enable building support for AT91RM9200 based SBCs
-
- --enable-gw16012 Enable building support for the Gateworks GW16012
- JTAG Programmer
-
- --enable-presto_libftdi Enable building support for ASIX Presto Programmer
- using the libftdi driver
- --enable-presto_ftd2xx Enable building support for ASIX Presto Programmer
- using the FTD2XX driver
-
- --enable-usbprog Enable building support for the usbprog JTAG
- Programmer
-
- --enable-oocd_trace Enable building support for some prototype
- OpenOCD+trace ETM capture hardware
-
- --enable-jlink Enable building support for the Segger J-Link JTAG
- Programmer
-
- --enable-vsllink Enable building support for the Versaloon-Link JTAG
- Programmer
-
- --enable-rlink Enable building support for the Raisonance RLink
- JTAG Programmer
- --enable-ulink Enable building support for the Keil ULINK JTAG
- Programmer
- --enable-arm-jtag-ew Enable building support for the Olimex ARM-JTAG-EW
- Programmer
-
- --enable-buspirate Enable building support for the Buspirate
-
- --enable-stlink Enable building support for the ST-Link JTAG
- Programmer
- --enable-ti-icdi Enable building support for the TI/Stellaris ICDI
- JTAG Programmer
-
- --enable-osbdm Enable building support for the OSBDM (JTAG only)
- Programmer
-
- --enable-opendous Enable building support for the estick/opendous JTAG
- Programmer
- --enable-sysfsgpio Enable building support for programming driven via
- sysfs gpios.
-
- --enable-minidriver-dummy
- Enable the dummy minidriver.
-
- --disable-internal-jimtcl
- Disable building internal jimtcl
-
- --enable-remote-bitbang Enable building support for the Remote Bitbang jtag
- driver
+Compiling OpenOCD
+-----------------
- --disable-doxygen-html Disable building Doxygen manual as HTML.
- --enable-doxygen-pdf Enable building Doxygen manual as PDF.
+To build OpenOCD, use the following sequence of commands:
-Miscellaneous Configure Options
--------------------------------
+ ./bootstrap (when building from the git repository)
+ ./configure [options]
+ make
+ sudo make install
-The following additional options may also be useful:
+The 'configure' step generates the Makefiles required to build
+OpenOCD, usually with one or more options provided to it. The first
+'make' step will build OpenOCD and place the final executable in
+'./src/'. The final (optional) step, ``make install'', places all of
+the files in the required location.
- --disable-assert turn off assertions
+To see the list of all the supported options, run
+ ./configure --help
- --enable-verbose Enable verbose JTAG I/O messages (for debugging).
- --enable-verbose-jtag-io
- Enable verbose JTAG I/O messages (for debugging).
- --enable-verbose-usb-io Enable verbose USB I/O messages (for debugging)
- --enable-verbose-usb-comms
- Enable verbose USB communication messages (for
- debugging)
- --enable-malloc-logging Include free space in logging messages (requires
- malloc.h).
+Cross-compiling Options
+-----------------------
- --disable-gccwarnings Disable extra gcc warnings during build.
- --disable-wextra Disable extra compiler warnings
- --disable-werror Do not treat warnings as errors
+Cross-compiling is supported the standard autotools way, you just need
+to specify the cross-compiling target triplet in the --host option,
+e.g. for cross-building for Windows 32-bit with MinGW on Debian:
- --disable-option-checking
- Ignore unrecognized --enable and --with options.
- --disable-dependency-tracking speeds up one-time build
- --enable-shared[=PKGS] build shared libraries [default=no]
- --enable-static[=PKGS] build static libraries [default=yes]
+ ./configure --host=i686-w64-mingw32 [options]
Parallel Port Dongles
---------------------
If you want to access the parallel port using the PPDEV interface you
have to specify both --enable-parport AND --enable-parport-ppdev, since the
-the later option is an option to the parport driver (see
-http://forum.sparkfun.com/viewtopic.php?t=3795 for more info).
+the later option is an option to the parport driver.
-The same is true for the --enable-parport-giveio option, you
-have to use both the --enable-parport AND the --enable-parport-giveio
-option if you want to use giveio instead of ioperm parallel port access
+The same is true for the --enable-parport-giveio option, you have to
+use both the --enable-parport AND the --enable-parport-giveio option
+if you want to use giveio instead of ioperm parallel port access
method.
-FT2232C Based USB Dongles
--------------------------
-
-There are 2 methods of using the FTD2232, either (1) using the
-FTDICHIP.COM closed source driver, or (2) the open (and free) driver
-libftdi.
-
-Using LIBFTDI
--------------
-
-The libftdi source code can be download from the following website:
-
- http://www.intra2net.com/en/developer/libftdi/download.php
-
-For both Linux and Windows, both libusb and libftdi must be built and
-installed. To use the newer FT2232H chips, supporting RTCK and USB high
-speed (480 Mbps), use libftdi version 0.17 or newer. Many Linux
-distributions provide suitable packages for these libraries.
-
-For Windows, libftdi is supported with versions 0.14 and later.
-
-With these prerequisites met, configure the libftdi solution like this:
-
- ./configure --prefix=/path/for/your/install --enable-ft2232_libftdi
-
-Then type ``make'', and perhaps ``make install''.
-
Using FTDI's FTD2XX
-------------------
-The (closed source) FTDICHIP.COM solution is faster on MS-Windows. That
-is the motivation for supporting it even though its licensing restricts
-it to non-redistributable OpenOCD binaries, and it is not available for
-all operating systems used with OpenOCD. You may, however, build such
-copies for personal use.
+The (closed source) FTDICHIP.COM solution is faster than libftdi on
+Windows. That is the motivation for supporting it even though its
+licensing restricts it to non-redistributable OpenOCD binaries, and it
+is not available for all operating systems used with OpenOCD. You may,
+however, build such copies for personal use.
The FTDICHIP drivers come as either a (win32) ZIP file, or a (Linux)
TAR.GZ file. You must unpack them ``some where'' convenient. As of this
writing FTDICHIP does not supply means to install these files "in an
appropriate place."
-If your distribution does not package these, there are several
-'./configure' options to solve this problem:
+You should use the following ./configure options to make use of
+FTD2XX:
--with-ftd2xx-win32-zipdir
Where (CYGWIN/MINGW) the zip file from ftdichip.com
--with-ftd2xx-linux-tardir
Where (Linux/Unix) the tar file from ftdichip.com
was unpacked <default=search>
- --with-ftd2xx-lib Use static or shared ftd2xx libs on default static
-
-If you are using the FTDICHIP.COM driver, download and unpack the
-Windows or Linux FTD2xx drivers from the following location:
-
- http://www.ftdichip.com/Drivers/D2XX.htm
+ --with-ftd2xx-lib=(static|shared)
+ Use static or shared ftd2xx libs (default is static)
Remember, this library is binary-only, while OpenOCD is licenced
-according to GNU GPLv2 without any exceptions. That means that
-_distributing_ copies of OpenOCD built with the FTDI code would violate
-the OpenOCD licensing terms.
-
-Linux Notes
-***********
-
-The Linux tar.gz archive contains a directory named libftd2xx0.4.16
-(or similar). Assuming that you have extracted this archive in the same
-directory as the OpenOCD package, you could configure with options like
-the following:
-
- ./configure \
- --enable-ft2232_ftd2xx \
- --with-ft2xx-linux-tardir=../libftd2xx0.4.16 \
- ... other options ...
+according to GNU GPLv2 without any exceptions. That means that
+_distributing_ copies of OpenOCD built with the FTDI code would
+violate the OpenOCD licensing terms.
Note that on Linux there is no good reason to use these FTDI binaries;
they are no faster (on Linux) than libftdi, and cause licensing issues.
+
==========================
Obtaining OpenOCD From GIT
==========================
Snapshots are compressed tarballs of the source tree, about 1.3 MBytes
each at this writing.
-
-
-Tips For Building From a GIT Repository
----------------------------------------
-
-Building OpenOCD from a repository requires a recent version of the GNU
-autotools (autoconf >= 2.60 and automake >= 1.9).
-
-1) Run './bootstrap' to create the 'configure' script and prepare
- the build process for your host system.
-
-2) Run './configure' with other options.
Code Review / openocd.git / commitdiff