@insertcopying
@menu
-* About:: About OpenOCD.
+* About:: About OpenOCD
* Developers:: OpenOCD Developers
* Building:: Building OpenOCD
* JTAG Hardware Dongles:: JTAG Hardware Dongles
* TFTP:: TFTP
* GDB and OpenOCD:: Using GDB and OpenOCD
* Tcl Scripting API:: Tcl Scripting API
-* Upgrading:: Deprecated/Removed commands
+* Upgrading:: Deprecated/Removed Commands
* Target Library:: Target Library
* FAQ:: Frequently Asked Questions
* Tcl Crash Course:: Tcl Crash Course
@comment case issue with ``Index.html'' and ``index.html''
@comment Occurs when creating ``--html --no-split'' output
@comment This fix is based on: http://sourceware.org/ml/binutils/2006-05/msg00215.html
-* OpenOCD Index:: Main index.
+* OpenOCD Index:: Main Index
@end menu
@node About
with the JTAG (IEEE 1149.1) compliant taps on your target board.
@b{Dongles:} OpenOCD currently supports many types of hardware dongles: USB
-Based, Parallel Port Based, and other standalone boxes that run
+based, parallel port based, and other standalone boxes that run
OpenOCD internally. See the section titled: @xref{JTAG Hardware Dongles}.
@b{GDB Debug:} It allows ARM7 (ARM7TDMI and ARM720t), ARM9 (ARM920T,
ARM922T, ARM926EJ--S, ARM966E--S), XScale (PXA25x, IXP42x) and
Cortex-M3 (Luminary Stellaris LM3 and ST STM32) based cores to be
-debugged via the GDB Protocol.
+debugged via the GDB protocol.
@b{Flash Programing:} Flash writing is supported for external CFI
compatible flashes (Intel and AMD/Spansion command set) and several
-internal flashes (LPC2000, AT91SAM7, STR7x, STR9x, LM3 and
+internal flashes (LPC2000, AT91SAM7, STR7x, STR9x, LM3, and
STM32x). Preliminary support for using the LPC3180's NAND flash
controller is included.
Other developers have contributed support for additional targets and flashes as well
as numerous bugfixes and enhancements. See the AUTHORS file for regular contributors.
-The main OpenOCD web site is available at @uref{http://openocd.berlios.de/web/}
+The main OpenOCD web site is available at @uref{http://openocd.berlios.de/web/}.
+
+@section Coding Style
+@cindex Coding Style
+
+The following rules try to describe formatting and naming conventions that should be
+followed to make the whole OpenOCD code look more consistent. The ultimate goal of
+coding style should be readability, and these rules may be ignored for a particular
+(small) piece of code if that makes it more readable.
+
+@subsection Formatting rules:
+@itemize @bullet
+@item remove any trailing white space
+@item use TAB characters for indentation, not spaces
+@item displayed TAB width is 4 characters
+@item make sure NOT to use DOS '\r\n' line feeds
+@item do not add more than 2 empty lines to source files
+@item do not add trailing empty lines to source files
+@item do not use C++ style comments (//)
+@item lines may be reasonably wide - there's no anachronistic 80 characters limit
+@end itemize
+
+@subsection Naming rules:
+@itemize @bullet
+@item identifiers use lower-case letters only
+@item identifiers consisting of multiple words use underline characters between consecutive words
+@item macros use upper-case letters only
+@item structure names shall be appended with '_s'
+@item typedefs shall be appended with '_t'
+@end itemize
+
+@subsection Function calls:
+@itemize @bullet
+@item function calls have no space between the functions name and the parameter
+list: my_func(param1, param2, ...)
+@end itemize
@node Building
@chapter Building
@section Packagers Please Read!
-If you are a @b{PACKAGER} of OpenOCD if you
+You are a @b{PACKAGER} of OpenOCD if you
@enumerate
@item @b{Sell dongles} and include pre-built binaries
suggestions:
@enumerate
-@item @b{Always build with printer ports enabled}
-@item @b{Try to use LIBFTDI + LIBUSB where possible}. You cover more bases
+@item @b{Always build with printer ports enabled.}
+@item @b{Try to use LIBFTDI + LIBUSB where possible. You cover more bases.}
@end enumerate
-It is your decision..
-
@itemize @bullet
-@item @b{Why YES to LIBFTDI + LIBUSB}
+@item @b{Why YES to LIBFTDI + LIBUSB?}
@itemize @bullet
@item @b{LESS} work - libusb perhaps already there
-@item @b{LESS} work - identical code multiple platforms
+@item @b{LESS} work - identical code, multiple platforms
@item @b{MORE} dongles are supported
@item @b{MORE} platforms are supported
@item @b{MORE} complete solution
@end itemize
-@item @b{Why not LIBFTDI + LIBUSB} (i.e.: ftd2xx instead)
+@item @b{Why not LIBFTDI + LIBUSB} (i.e.: ftd2xx instead)?
@itemize @bullet
-@item @b{LESS} Some say it is slower.
+@item @b{LESS} speed - some say it is slower
@item @b{LESS} complex to distribute (external dependencies)
@end itemize
@end itemize
@section Building From Source
-You can download the current SVN version with SVN client of your choice from the
+You can download the current SVN version with an SVN client of your choice from the
following repositories:
@uref{svn://svn.berlios.de/openocd/trunk}
svn checkout svn://svn.berlios.de/openocd/trunk openocd
@end example
-Building OpenOCD requires a recent version of the GNU autotools.
-On my build system, I'm using autoconf 2.13 and automake 1.9. For building on Windows,
+Building OpenOCD requires a recent version of the GNU autotools (autoconf >= 2.59 and automake >= 1.9).
+For building on Windows,
you have to use Cygwin. Make sure that your @env{PATH} environment variable contains no
other locations with Unix utils (like UnxUtils) - these can't handle the Cygwin
paths, resulting in obscure dependency errors (This is an observation I've gathered
You further need the appropriate driver files, if you want to build support for
a FTDI FT2232 based interface:
+
@itemize @bullet
@item @b{ftdi2232} libftdi (@uref{http://www.intra2net.com/opensource/ftdi/})
@item @b{ftd2xx} libftd2xx (@uref{http://www.ftdichip.com/Drivers/D2XX.htm})
@item When using the Amontec JTAGkey, you have to get the drivers from the Amontec
-homepage (@uref{www.amontec.com}), as the JTAGkey uses a non-standard VID/PID.
+homepage (@uref{http://www.amontec.com}), as the JTAGkey uses a non-standard VID/PID.
@end itemize
-libftdi is supported under Windows. Do not use versions earlier then 0.14.
+libftdi is supported under Windows. Do not use versions earlier than 0.14.
In general, the D2XX driver provides superior performance (several times as fast),
but has the draw-back of being binary-only - though that isn't that bad, as it isn't
a kernel module, only a user space library.
To build OpenOCD (on both Linux and Cygwin), use the following commands:
+
@example
./bootstrap
@end example
+
Bootstrap generates the configure script, and prepares building on your system.
+
@example
./configure [options, see below]
@end example
+
Configure generates the Makefiles used to build OpenOCD.
+
@example
make
make install
@end example
+
Make builds OpenOCD, and places the final executable in ./src/, the last step, ``make install'' is optional.
The configure script takes several options, specifying which JTAG interfaces
-should be included:
+should be included (among other things):
@itemize @bullet
@item
-@option{--enable-parport} - Bit bang pc printer ports.
+@option{--enable-parport} - Enable building the PC parallel port driver.
+@item
+@option{--enable-parport_ppdev} - Enable use of ppdev (/dev/parportN) for parport.
+@item
+@option{--enable-parport_giveio} - Enable use of giveio for parport instead of ioperm.
+@item
+@option{--enable-amtjtagaccel} - Enable building the Amontec JTAG-Accelerator driver.
@item
-@option{--enable-parport_ppdev} - Parallel Port [see below]
+@option{--enable-ecosboard} - Enable building support for eCosBoard based JTAG debugger.
@item
-@option{--enable-parport_giveio} - Parallel Port [see below]
+@option{--enable-ioutil} - Enable ioutil functions - useful for standalone OpenOCD implementations.
@item
-@option{--enable-amtjtagaccel} - Parallel Port [Amontec, see below]
+@option{--enable-httpd} - Enable builtin httpd server - useful for standalone OpenOCD implementations.
@item
-@option{--enable-ft2232_ftd2xx} - Numerous USB Type ARM JTAG dongles use the FT2232C chip from this FTDICHIP.COM chip (closed source).
+@option{--enable-ep93xx} - Enable building support for EP93xx based SBCs.
@item
-@option{--enable-ft2232_libftdi} - An open source (free) alternate to FTDICHIP.COM ftd2xx solution (Linux, MacOS, Cygwin)
+@option{--enable-at91rm9200} - Enable building support for AT91RM9200 based SBCs.
+@item
+@option{--enable-gw16012} - Enable building support for the Gateworks GW16012 JTAG programmer.
+@item
+@option{--enable-ft2232_ftd2xx} - Numerous USB type ARM JTAG dongles use the FT2232C chip from this FTDICHIP.COM chip (closed source).
+@item
+@option{--enable-ft2232_libftdi} - An open source (free) alternative to FTDICHIP.COM ftd2xx solution (Linux, MacOS, Cygwin).
@item
@option{--with-ftd2xx-win32-zipdir=PATH} - If using FTDICHIP.COM ft2232c, point at the directory where the Win32 FTDICHIP.COM 'CDM' driver zip file was unpacked.
@item
-@option{--with-ftd2xx-linux-tardir=PATH} - Linux only equal of @option{--with-ftd2xx-win32-zipdir}, where you unpacked the TAR.GZ file.
+@option{--with-ftd2xx-linux-tardir=PATH} - Linux only. Equivalent of @option{--with-ftd2xx-win32-zipdir}, where you unpacked the TAR.GZ file.
+@item
+@option{--with-ftd2xx-lib=shared|static} - Linux only. Default: static. Specifies how the FTDICHIP.COM libftd2xx driver should be linked. Note: 'static' only works in conjunction with @option{--with-ftd2xx-linux-tardir}. The 'shared' value is supported (12/26/2008), however you must manually install the required header files and shared libraries in an appropriate place. This uses ``libusb'' internally.
@item
-@option{--with-ftd2xx-lib=shared|static} - Linux only. Default: static, specifies how the FTDICHIP.COM libftd2xx driver should be linked. Note 'static' only works in conjunction with @option{--with-ftd2xx-linux-tardir}. Shared is supported (12/26/2008), however you must manually install the required header files and shared libraries in an appropriate place. This uses ``libusb'' internally.
+@option{--enable-presto_libftdi} - Enable building support for ASIX Presto programmer using the libftdi driver.
@item
-@option{--enable-gw16012}
+@option{--enable-presto_ftd2xx} - Enable building support for ASIX Presto programmer using the FTD2XX driver.
@item
-@option{--enable-usbprog}
+@option{--enable-usbprog} - Enable building support for the USBprog JTAG programmer.
@item
-@option{--enable-presto_libftdi}
+@option{--enable-oocd_trace} - Enable building support for the OpenOCD+trace ETM capture device.
@item
-@option{--enable-presto_ftd2xx}
+@option{--enable-jlink} - Enable building support for the Segger J-Link JTAG programmer.
@item
-@option{--enable-jlink} - From SEGGER
+@option{--enable-vsllink} - Enable building support for the Versaloon-Link JTAG programmer.
@item
-@option{--enable-vsllink}
+@option{--enable-rlink} - Enable building support for the Raisonance RLink JTAG programmer.
@item
-@option{--enable-rlink} - Raisonance.com dongle.
+@option{--enable-arm-jtag-ew} - Enable building support for the Olimex ARM-JTAG-EW programmer.
@item
-@option{--enable-arm-jtag-ew} - Olimex ARM-JTAG-EW dongle.
+@option{--enable-dummy} - Enable building the dummy port driver.
@end itemize
@section Parallel Port Dongles
the @option{--enable-parport_ppdev} option actually is an option to the parport driver
(see @uref{http://forum.sparkfun.com/viewtopic.php?t=3795} for more info).
+The same is true for the @option{--enable-parport_giveio} option, you have to
+use both the @option{--enable-parport} AND the @option{--enable-parport_giveio} option if you want to use giveio instead of ioperm parallel port access method.
+
@section FT2232C Based USB Dongles
There are 2 methods of using the FTD2232, either (1) using the
1) Check out the latest version of ``openocd'' from SVN.
-2) Download & Unpack either the Windows or Linux FTD2xx Drivers
- (@uref{http://www.ftdichip.com/Drivers/D2XX.htm})
+2) Download & unpack either the Windows or Linux FTD2xx drivers
+ (@uref{http://www.ftdichip.com/Drivers/D2XX.htm}).
@example
/home/duane/ftd2xx.win32 => the Cygwin/Win32 ZIP file contents.
- /home/duane/libftd2xx0.4.16 => the Linux TAR file contents.
+ /home/duane/libftd2xx0.4.16 => the Linux TAR.GZ file contents.
@end example
3) Configure with these options:
@example
-Cygwin FTCICHIP solution
- ./configure --prefix=/home/duane/mytools \
- --enable-ft2232_ftd2xx \
- --with-ftd2xx-win32-zipdir=/home/duane/ftd2xx.win32
+Cygwin FTDICHIP solution:
+ ./configure --prefix=/home/duane/mytools \
+ --enable-ft2232_ftd2xx \
+ --with-ftd2xx-win32-zipdir=/home/duane/ftd2xx.win32
-Linux FTDICHIP solution
+Linux FTDICHIP solution:
./configure --prefix=/home/duane/mytools \
- --enable-ft2232_ftd2xx \
- --with-ft2xx-linux-tardir=/home/duane/libftd2xx0.4.16
+ --enable-ft2232_ftd2xx \
+ --with-ft2xx-linux-tardir=/home/duane/libftd2xx0.4.16
-Cygwin/Linux LIBFTDI solution
+Cygwin/Linux LIBFTDI solution:
Assumes:
1a) For Windows: The Windows port of LIBUSB is in place.
- 1b) For Linux: libusb has been built and is inplace.
+ 1b) For Linux: libusb has been built/installed and is in place.
2) And libftdi has been built and installed
Note: libftdi - relies upon libusb.
./configure --prefix=/home/duane/mytools \
- --enable-ft2232_libftdi
+ --enable-ft2232_libftdi
@end example
4) Then just type ``make'', and perhaps ``make install''.
-@section Miscellaneous configure options
+@section Miscellaneous Configure Options
@itemize @bullet
@item
-@option{--enable-gccwarnings} - enable extra gcc warnings during build.
+@option{--disable-option-checking} - Ignore unrecognized @option{--enable} and @option{--with} options.
+@item
+@option{--enable-gccwarnings} - Enable extra gcc warnings during build.
Default is enabled.
@item
-@option{--enable-release} - enable building of a openocd release, generally
+@option{--enable-release} - Enable building of an OpenOCD release, generally
this is for developers. It simply omits the svn version string when the
openocd @option{-v} is executed.
@end itemize
In the OpenOCD case, this generally refers to @b{a small adapater} one
attaches to your computer via USB or the Parallel Printer Port. The
execption being the Zylin ZY1000 which is a small box you attach via
-an ethernet cable.
+an ethernet cable. The Zylin ZY1000 has the advantage that it does not
+require any drivers to be installed on the developer PC. It also has
+a built in web interface. It supports RTCK/RCLK or adaptive clocking
+and has a built in relay to power cycle targets remotely.
@section Choosing a Dongle
@section Stand alone Systems
@b{ZY1000} See: @url{http://www.zylin.com/zy1000.html} Technically, not a
-dongle, but a standalone box.
+dongle, but a standalone box. The ZY1000 has the advantage that it does
+not require any drivers installed on the developer PC. It also has
+a built in web interface. It supports RTCK/RCLK or adaptive clocking
+and has a built in relay to power cycle targets remotely.
@section USB FT2232 Based
@itemize @bullet
@item @b{-expected-id NUMBER}
@* By default it is zero. If non-zero represents the
-expected tap ID used when the JTAG chain is examined. See below.
+expected tap ID used when the JTAG chain is examined. Repeat
+the option as many times as required if multiple id's can be
+expected. See below.
@item @b{-disable}
@item @b{-enable}
@* By default not specified the tap is enabled. Some chips have a
OpenOCD can handle certain target requests, currently debugmsg are only supported for arm7_9 and cortex_m3.
See libdcc in the contrib dir for more details.
@itemize @bullet
-@item @b{target_request debugmsgs} <@var{enable}|@var{disable}>
+@item @b{target_request debugmsgs} <@var{enable}|@var{disable}|@var{charmsg}>
@cindex target_request debugmsgs
-@*Enable/disable target debugmsgs requests. debugmsgs enable messages to be sent to the debugger while the target is running.
+@*Enable/disable target debugmsgs requests. debugmsgs enable messages to be sent to the debugger while the target is running. @var{charmsg} receives messages if Linux kernel ``Kernel low-level debugging via EmbeddedICE DCC channel'' option is enabled.
@end itemize
@node JTAG Commands
projects / openocd / blobdiff