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| Message 2008-10-12 13:23:16 |
What is JTAG ?rachid77 says... What is a JTAG, what it does standard for, what is its usage? and its impact on the DSP kit programmingednan says... JTAG is a in-system programmer and emulation protocol for certain types of micro-controllers.If you want the JTAG interfacing for MSP430 and AVR's for instance, you can go to http://dev for the schematics and documantations for the JTAG circuits. One big advantage of JTAG is that you can actually do a "hardware" step-by-step debugging, the same way u do in software, like setting up interrupts and stuff ... segmex says... JTAG boundary scan started as a method of testing ICs and their interconnections using a shift register built into the chip so that inputs could be shifted in and the resulting outputs could be shifted out using only four I/O pins (clock, input data, output data, and state machine mode control). This eliminated the need for complex, expensive, bed-of-nails cards for low-speed probing of IC I/O pins.Eventually, the uses of JTAG expanded to include things like debugging software for embedded microcontrollers, thus reducing the need for in-circuit emulators. And JTAG is a natural match for downloading configuration bitstreams to FPGAs. JTAG, an initialism for Joint Test Action Group < Info needed on the new WT800 amps | Olimex LPC-P2148 board processor pin availability versus kei > |
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