X-Git-Url: https://review.openocd.org/gitweb?p=openocd.git;a=blobdiff_plain;f=README;h=7cefad4498e364d86ab97575cde3e711a25763ae;hp=2defb5d1ec6bbd5197b3a2fa6a4c70881534bbb3;hb=26526a80ea45894aa9041e19f52dcc3ad6dedebc;hpb=53d1f9b2ca5718e4996e9cf3406f857d0ed26df2 diff --git a/README b/README index 2defb5d1ec..7cefad4498 100644 --- a/README +++ b/README @@ -1,102 +1,2 @@ - OpenOCD - - Free and Open On-Chip Debugging, In-System Programming - and Boundary-Scan Testing - Copyright (c) 2004-2007 Dominic Rath - -The debugger uses an IEEE 1149-1 compliant JTAG TAP bus master to access on-chip -debug functionality available on ARM7 and ARM9 based microcontrollers / -system-on-chip solutions. - -User interaction is realized through a telnet command line interface and a gdb -(The GNU Debugger) remote protocol server. - -1. JTAG hardware - -Currently, OpenOCD supports three types of JTAG interfaces: - -- Parallel port wigglers. These devices connect to a PC's parallel port, -providing direct access to the JTAG lines. The OpenOCD contains descriptions -of a few Wiggler layouts, including the original 'Wiggler' design. Other -layouts (i.e. mapping of parallel port pins to JTAG lines) can be added easily. -Typical Wiggler speeds are around 12kByte/s code download to an ARM7's RAM. - -- The Amontec JTAG Accelerator. This is a configuration for Amontec's Chameleon -dongle, a parallel port interface based on a Xilinx CoolRunner CPLD. It uses -the IEEE1284 EPP parallel port specification, providing many times the -performance achievable with wiggler-style devices. Additional information is -available on www.amontec.com. -Typical JTAG Accelerator speeds are around 120-160kByte/s to an ARM7's RAM. - -- FTDI FT2232 based USB devices. The FT2232 (but not FT232 or FT245) features a -multi-protocol synchronous serial engine (MPSSE) that can be used to run the -serial JTAG protocol. There are several implemenations of FT2232 based devices: - -* USBJTAG: http://www.fh-augsburg.de/~hhoegl/proj/usbjtag/usbjtag.html -The USBJTAG was designed by Prof. Hubert Hoegl to provide a high-speed USB -interface for use with the OpenOCD. Schematics are available at the USBJTAG -website, and a homebrew device can easily be built using the FTDI evaluation -module DLP2232M. - -* OOCD-Link: http://www.joernonline.de/dw/doku.php?id=en:projects:oocdlink -Similar to the USBJTAG, this design comes with free schematics, too. - -* Amontec JTAGkey: www.amontec.com -The Amontec JTAGkey offers support for a wide variety of target voltages from -1.4V to 5V. It also allows the JTAG lines and reset signals to be tri-stated, -allowing easy interfacing with a wide variety of targets. - -* Amontec JTAGkey-Tiny: www.amontec.com -The Amontec JTAGkey offers support for a wide variety of target voltages from -2.8V to 5V. It also allows the reset signals to be tri-stated, allowing easy -interfacing with a wide variety of targets. - -* Olimex ARM-USB-OCD: www.olimex.com -The Olimex ARM-USB-OCD offers support for a wide vriety of target voltages from -2.0V to 5V. It also allows targets to be powered from the ARM-USB-OCD and -features and additional RS232 UART. - -* eVerve Signalyzer: www.signalyzer.com -The Signalyzer offers support for a wide variety of target voltages from 1.2V to -5.5V. A second connector provides access to a TTL level UART. - -All FT2232 based devices may be accessed using either FTDI's proprietary FTD2XX -library (www.ftdichip.com) or using an open-source replacement from -http://www.intra2net.com/de/produkte/opensource/ftdi/index.php, also included -with many Linux distributions. - -2. Supported cores - -This version of openocd supports the following ARM7/9 cores: - -- ARM7TDMI(-s) -- ARM9TDMI -- ARM920t -- ARM922t -- ARM926ej-s -- ARM966e - -Support for Intel XScale CPUs is also included: - -- PXA25x -- IXP42x - -PXA27x debugging should be similar to the PXA25x but fails in the current -version of OpenOCD. - -3. Host platforms - -OpenOCD was originally developed on x86-Linux, but has since then been ported -to run on Windows/Cygwin, native Windows with MinGW, FreeBSD, x86-64-Linux and -PowerPC OS-X. - -4. Documentation - -Documentation for the OpenOCD is hosted in the Berlios OpenFacts Wiki at -http://openfacts.berlios.de/index-en.phtml?title=Open_On-Chip_Debugger. - -5. Licensing - -OpenOCD is licensed under the terms of the GNU General Public License, see the -file COPYING for details. +openocd.texi is the authoritative source of OpenOCD documentation