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	H-JTAG
		H-JTAG is a free jtag debug agent for arm mcu.
		For users of olimex wiggler, please configure JTAG according this picture;
		This is a paragraph of text that could go in the sidebar.
	hjtag.blogspot.com (636 words)

	High-level Guide to JTAG - Background, Connection Testing and Device Programming (Site not responding. Last check: )
		The JTAG interface requires four pins on each device, one to take data onto the device, one to take data off the device, one to control what is to be done with the data and one clock signal to synchronise the process.
		In a JTAG chain the data output from the first device becomes the data input to the second device; the control and clock signals are common to all devices in the chain.
		A sequence of JTAG test signals is created to manipulate the address and data busses of a memory device so as to write information into memory, a second set of test signals is created to read this information back.
	www.xjtag.com /support-jtag/jtag-high-level-guide.php (1312 words)

	Ethernut 3 JTAG
		JTAG programming is required to initially burn the bootloader into flash memory or to permanently store application code.
		According to the JTAG standard, the TAP controller is reset to a known state by keeping TMS high for five consecutive TCK cycles.
		On all Ethernut Boards the same connector layout is used for JTAG, which is the same as the one used by Atmel for the AVR and which is used by most AVR based boards.
	www.ethernut.de /en/hardware/enut3/jtag.html (2064 words)

	JTAG testing with XJTAG - Throughout the Product Lifecycle
		With JTAG abstraction, reactive test pattern generation and a device centric philosophy, XJTAG represents the most exciting advance in testing for a decade.
		While traditional JTAG solutions can use the connections between JTAG devices to implement connection tests, circuits still contain a lot of non-JTAG devices, many of which utilise BGA packaging, which cannot be tested either physically or by JTAG.
		The introduction of programmatic control and reactive test pattern generation to JTAG testing expands both the percentage of a circuit and the range of devices that can be tested.
	www.xjtag.com /support-jtag/testing-with-xjtag.php (1652 words)

	[No title]
		But like JTAG, they all use a serial interface for reading from and writing to the chip and can be used to perform essential debugging functions.
		The JTAG functionality for the DS21Qx5y devices is essentially the same as four separate DS21x5y devices daisy chained together.
		The internal JTAG pins are either wired together in parallel or daisy chained as appropriate.
	www.lycos.com /info/jtag.html (577 words)

	OpenWrtDocs/Customizing/Hardware/JTAG Cable - OpenWrt
		There are still other JTAG solutions out there that are faster and more sophisticated than the interfaces built by hobbyists, but these are generally not cost-effective for someone who just wants to re-flash a single flash chip.
		Driving a JTAG interface through the parallel port on a PC is a slow proposition.
		All of them are different in the LPT pins -to- JTAG pins mapping and may be in the buffered and unbuffered variant.
	wiki.openwrt.org /OpenWrtDocs/Customizing/Hardware/JTAG_Cable (2761 words)

	JTAG - OpenEZX
		JTAG is a standard interface for in-system testing and debugging.
		JTAG is an industry standard developed by/under the Joint Test Action Group that developed it.
		By using a five-wire connection (the JTAG Port) built into the to-be-tested/debugged device, an external entity can use serial shifting to read/write information to each and every signal.
	wiki.openezx.org /JTAG (302 words)

	Embedded.com - Introduction to JTAG
		The specification JTAG devised uses boundary-scan technology, which enables engineers to perform extensive debugging and diagnostics on a system through a small number of dedicated test pins.
		JTAG also allows the internal components of the device (the CPU, for example) to be scanned.
		This means you can use JTAG to debug embedded devices by allowing access to any part of the device that is accessible via the CPU, and still test at full speed.
	www.embedded.com /story/OEG20021028S0049 (1368 words)

	A Brief Introduction to JTAG
		In the figure above, and assuming that the JTAG interface is in external-test mode, C0 is the BSR cell capturing the state of the input pin 0.
		TDO is the Test Data Output line, which is used to serially output the data from the JTAG registers to the equipment controlling the test.
		The normal organization of the test circuit on a board that incorporates several chips with JTAG support is to connect TRST*, TCK, and TMS to every chip in parallel, and to connect TDO from one chip to TDI of the next in a single loop.
	www.inaccessnetworks.com /projects/ianjtag/jtag-intro/jtag-intro.html (1872 words)

	[No title]
		JTAG, an acronym for Joint Test Action Group, is the usual name used for the IEEE 1149.1 standard entitled Standard Test Access Port and Boundary-Scan Architecture for test access ports used for testing printed circuit boards using boundary scan.
		The JTAG interface is accessed through the Test Access Port (TAP).The TAP is a general-purpose port that can provide access to many test support functions built into a component, including the test logic defined by this standard.
		The basic configuration assocaited with JTAG, is to have the device with the JTAG port connected to some other device (usually a PC).
	www.ccm.ece.vt.edu /~jasuris/ece5530/final/index.html (819 words)

	JTAG
		JTAG is a standard way for hardware such as automated testers to communicate with IC (such as microcontrollers and FPGAs).
		In this mode, the JTAG adapter isn't really "speaking" JTAG, but it is just an interface between the PC and the AVR microprocessor.
		JTAG is a serial protocol where all the devices are connected round robin.
	www.awce.com /jtag.htm (345 words)

	XDADeveloperWiki - Wallaby JTAG
		JTAG is a protocol designed to do in-circuit testing and debugging of hardware devices and circuit boards.
		Although JTAG allows very advanced means of debugging, the main purpose of this exercise so far was to reach the possibility of flashing the ROM without a bootloader.
		The first step to be taken is the discovery of the so-called test pads that connect to the JTAG pins on the StrongARM.
	wiki.xda-developers.com /index.php?pagename=WallabyJTAG (1253 words)

	AVR ICE-Cube - Technical Details
		JTAG ICE interfaces that draw power from the target system have a more limited operating voltage range than those with their own power supplies.
		The JTAG ICE clone examined by ECROS Technology reported the target system voltage as 5V in all cases, whatever the actual voltage was.
		However, perching the JTAG interface unit on the target may not be the right choice for you.
	www.ecrostech.com /Products/AvrJtagIce/Technical.htm (1973 words)

	Oddcircuits.com AR105-A Product Page
		The next time you need to jtag, just quickly plug in the cable and you're connected.
		The JTAG cables ship with two 40 pin strips of header pins, enough to install in several receivers and use the same cable between them.
		The two cables are not interchangeable because the layout of the topside JTAG pads is different on 301/3100 receivers.
	www.oddcircuits.com /jtag.htm (350 words)

	A Short introduction to JTAG
		This can be used to simplify manufactoring (your boards and preassembled, and you use JTAG to download the programming into the flash chip), or to salvage a bad reprogramming jobs (say from trying to put Linux on a WindowsCE device), or to load programs down to programmable logic devices like CPLDs and FPGAs.
		Some devices call their JTAG ports by other names or include it as part of a debugging port (like Hitachi's H-UDI which makes JTAG part of the embeded ICE system), and they may add additional lines (like Sun's JTAG controll system used for booting certain large servers).
		The operation of JTAG is that you set the instruction register, then you set the data in the register attached to that instruction.
	www.jdboyd.net /jtag (893 words)

	JTAG connector - GumstixDocsWiki
		JTAG provides a low-level hardware debugging interface to a variety of processors, including the PXA255 on the gumstix.
		The JTAG signals are not brought through the 60 pin Hirose connector on newer boards.
		If you're going to be using the JTAG with a daughtercard which has a console (FFUART) on it (i.e.
	docwiki.gumstix.org /JTAG (321 words)

	JTAG - Hardware-Hacking
		JTAG is currently used on almost all more complex devices.
		Driving a JTAG interface through the parallel port on a PC is a slow proposition.
		The Macraigor Raven and USB JTAG adaptors are much faster, but there are no known schematic to implement it.
	hardware-hacking.com /JTAG (373 words)

	JTAG Technologies - privacy policy
		Because JTAG Technologies collects certain types of information from visitors to its website, it is important that you understand the terms and conditions regarding the use of that information.
		JTAG Technologies does not sell, trade, or rent your personal information to anyone, or disclose personal information except: 1) When the purpose and manner of the disclosure has been disclosed to you prior to your providing the information, or 2) When disclosure is required by law.
		JTAG Technologies encourages our users to be aware when they leave our site and to read the privacy statements of every website that collects personally identifiable information.
	www.jtag-technologies.com /main.php?cm=p79_1___ (800 words)

	JTAG
		JTAG is a serial protocol, similar to SPI, that is used for boundary scan testing, in circuit emulation, and flash programming.
		All the I/O pins on all JTAG devices on a board are connected together in one giant shift register with one or more bits per pin.
		Amontec jtagkey is an FTDI FT2232 based USB to JTAG key with open source linux drivers as well as windows and Wince drivers.
	www.freelabs.com /~whitis/electronics/jtag (2541 words)

	Expanded Role for JTAG DFT
		At this stage in JTAG’s development, fulfilling these expectations depends as much on how well or how poorly the JTAG infrastructure is designed into chips, circuit boards, and systems as it does on the innate capabilities of the boundary scan technology itself.
		In general, after as many JTAG devices as possible have been specified, the scan paths on the board must be thoughtfully designed.
		The next level in automating JTAG DFT and ensuring a high level of quality test coverage would be to analyze completed schematics to ascertain whether the JTAG infrastructure has been implemented properly and alert designers to alternative design structures that offer greater JTAG test coverage.
	evaluationengineering.com /archive/articles/1006/1006expanded_role.asp (2510 words)

	ARM: Connecting to Hardware Using H-JTAG
		H-JTAG (http://hjtag.blogspot.com or http://twentyone.blogchina.com) is a free RDI interface that works with the Macraigor (http://www.macraigor.com) Wiggler JTAG pod, or a clone such as the Olimex (http://www.olimex.com/dev/arm-jtag.h) pod.
		Pin 1 on the JTAG cable is almost always indicated by a red stripe on the edge of the cable.
		Pin 1 of the JTAG connector on the target board is often indicated by a "1" on the silk-screen.
	www.noicedebugger.com /tour_arm/firsthjtag.html (786 words)

	QNX Developer Support
		Specify the JTAG clock frequency in MHz (1, 2, 4, 8, 12, 16, 24, or 32; the default is the JTAG's default).
		Some CPUs require the CPU's name to be passed to the JTAG to configure the processor.
		Use the JTAG to directly copy the image into RAM memory on the target (this may require that you configure the CPU using the JTAG, to do the work usually done by the IPL).
	www.qnx.com /developers/docs/6.3.0/neutrino/utilities/d/devc_amctap_host.html (619 words)

	USB to JTAG Interface
		The primary purpose was to develop a USB-connectable JTAG interface for the Open On-Chip Debugger OpenOCD.
		A typical usage is to establish a UART connection to a microprocessor target while channel one at the same time serves a JTAG connection.
		This was the very first demonstrator to show that a JTAG port can be driven with a FT2232C chip (I think it was in 2004).
	www.fh-augsburg.de /~hhoegl/proj/usbjtag/usbjtag.html (627 words)

	JTAG Test, Debugger, Scanworks, Boundary Scan Technology, IEEE1149.1
		Once ScanWorks has automatically generated JTAG or boundary scan tests, any of a number of ScanWorks tools can take the automation process even further by performing many of the manual tasks associated with testing or programming operations.
		ScanWorks Process Automation Scripting is an extensive library of JTAG function calls that support a wide range of testing activities as simple as specifying the value for a specific boundary-scan cell or as complex as the execution of comprehensive sequences of scan operations.
		With Process Automation Scripting the boundary-scan or JTAG capabilities of ScanWorks are available through many of the programming languages that test engineers are most familiar with.
	www.asset-intertech.com /jtag_scanworks_testautomation.html (970 words)

	JTAG Visualizer for boundary-scan
		Or, in manufacturing, JTAG Visualizer greatly facilitates diagnostics for repairing defective boards by showing the faults graphically in the layout and the schematics up to the pins (pin-level-diagnostics).
		In order to perform JTAG Visualizer applications, various files are needed from EDA design environments and from JTAG Technologies’ boundary-scan tools.
		JTAG Visualizer provides instantaneous cross-probing between these design files and other files generated by JTAG Technologies’ boundary-scan tools, greatly facilitating such activities as design-for-test (DFT) and repair.
	www.jtag.com /index.php?p=3500 (379 words)

	JTAG Emulators
		JTAG emulators are the "umbilical cord" between PC software tools and DSP boards during development.
		JTAG debug applies during both hardware development -- when the board is first powered on and each section of the board (memory, digital I/O interfaces, analog I/O, etc) is tested and debugged -- and during software development, when DSP code is being created and tested.
		When combined with a JTAG emulator, CCS provides crucial board debug and "bring up" capabilities such as single-step, breakpoint, memory and symbol display and "watch", executable code download, and data file transfer.
	www.signalogic.com /index.pl?page=JTAG_emulators (343 words)

	NSLU2-Linux - Info / PinoutOfJTAGPort browse
		JTAG is a IEEE standard 1149.1 for in-circuit testing of complex electronic systems, typically using FPGAs or microprocessors.
		The JTAG port has been tested and found to be working with a Altera ByteBlaster MV cable, Digilent Xilinx III clone cable and a BDI2000 JTAG interface.
		JTAG Tools is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions.
	www.nslu2-linux.org /wiki/Info/PinoutOfJTAGPort (476 words)

	TuxScreen: JTAG
		Use JTAG to install a new working loader.
		The JTAG dongle hardware distribution from Holly Gates.
		It is mapped to nTRST on the LART but not connected on the JTAG dongle.
	www.tuxscreen.net /wiki/view/JTAG (345 words)

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