Comments on: JTAG Boundary-Scan Vs. JTAG Emulation (ICE) http://www.etoolsmiths.com/blog/jtag-boundary-scan-vs-jtag-emulation-ice/ JTAG and Boundary-Scan Tools Fri, 11 Dec 2009 15:21:37 -0800 http://wordpress.org/?v=abc hourly 1 By: returnGoodguy http://www.etoolsmiths.com/blog/jtag-boundary-scan-vs-jtag-emulation-ice/comment-page-1/#comment-1675 returnGoodguy Wed, 10 Jun 2009 05:16:30 +0000 http://www.etoolsmiths.com/blog/jtag-boundary-scan-vs-jtag-emulation-ice/#comment-1675 One more question... What's the meaning of word, ICE (In-Circuit Emulator)? Thanks again :). One more question…
What’s the meaning of word, ICE (In-Circuit Emulator)?

Thanks again :) .

]]> By: returnGoodguy http://www.etoolsmiths.com/blog/jtag-boundary-scan-vs-jtag-emulation-ice/comment-page-1/#comment-1674 returnGoodguy Wed, 10 Jun 2009 05:11:35 +0000 http://www.etoolsmiths.com/blog/jtag-boundary-scan-vs-jtag-emulation-ice/#comment-1674 Hi, It's very helpful article. But to understand precisely, I have two questions about them. First , I understand that ICE is more complicated than JTAG Boundary SCAN Test. Does functionality of the ICE cover that of another? I mean, ICE can control/run processors, directly program programmable devices, and test JTAG Cell enabled hardware logic. Second, this is about ICE devices working with processor(like ARM)-based FPGA board (like MultiICE). ICE device must understand architecture of target microprocessor and know where JTAG cells are placed exactly in the architecture. So the ICE device can control the processor using the JTAG SCAN Chain of the processor, FLASH, RAM, and the others. Please confirm above two questions. Thanks for your time to answer. Hi,
It’s very helpful article. But to understand precisely, I have two questions about them.

First , I understand that ICE is more complicated than JTAG Boundary SCAN Test. Does functionality of the ICE cover that of another? I mean, ICE can control/run processors, directly program programmable devices, and test JTAG Cell enabled hardware logic.

Second, this is about ICE devices working with processor(like ARM)-based FPGA board (like MultiICE). ICE device must understand architecture of target microprocessor and know where JTAG cells are placed exactly in the architecture. So the ICE device can control the processor using the JTAG SCAN Chain of the processor, FLASH, RAM, and the others.

Please confirm above two questions.
Thanks for your time to answer.

]]> By: admin http://www.etoolsmiths.com/blog/jtag-boundary-scan-vs-jtag-emulation-ice/comment-page-1/#comment-1628 admin Fri, 29 May 2009 09:28:13 +0000 http://www.etoolsmiths.com/blog/jtag-boundary-scan-vs-jtag-emulation-ice/#comment-1628 Hi, JTAG ICE - Used to control the processor and RUN CODE on the target microprocessor. ICE allows you to load the code, set it, run it ,stop it, set breakpoints and in general debug the code. JTAG Boundary SCAN Test - Uses JTAG to send and receive test patterns to devices on a board, can also be used to program devices. Is NOT used to load code or debug code on the target microprocessor. In fact does not even require a microprocessor in the circuit; can work with hardware logic (JTAG Cell enabled) only. JTAG ICE programs FLASH by loading code to RAM on the system and causing the target micro to run this code. The code does the erase and programming of the FLASH. ICE can also do slow FLASH programming by "wiggling" address, data and control, lines from micro to the FLASH. This does not require working RAM (or code in RAM). Hope that helps Hi,
JTAG ICE – Used to control the processor and RUN CODE on the target microprocessor. ICE allows you to load the code, set it, run it ,stop it, set breakpoints and in general debug the code.

JTAG Boundary SCAN Test – Uses JTAG to send and receive test patterns to devices on a board, can also be used to program devices. Is NOT used to load code or debug code on the target microprocessor. In fact does not even require a microprocessor in the circuit; can work with hardware logic (JTAG Cell enabled) only.

JTAG ICE programs FLASH by loading code to RAM on the system and causing the target micro to run this code. The code does the erase and programming of the FLASH. ICE can also do slow FLASH programming by “wiggling” address, data and control, lines from micro to the FLASH. This does not require working RAM (or code in RAM).

Hope that helps

]]> By: abhayadev s http://www.etoolsmiths.com/blog/jtag-boundary-scan-vs-jtag-emulation-ice/comment-page-1/#comment-1627 abhayadev s Fri, 29 May 2009 06:38:31 +0000 http://www.etoolsmiths.com/blog/jtag-boundary-scan-vs-jtag-emulation-ice/#comment-1627 Hi, nice article... but still i am not clear on the functionality diff od both of them. can you be specif to an operation of ICE and JTAG whic compliments each other. one more thing how a jtag/ice programs the flash ? thanks for your time to reply, Hi,
nice article… but still i am not clear on the functionality diff od both of them. can you be specif to an operation of ICE and JTAG whic compliments each other.

one more thing how a jtag/ice programs the flash ?

thanks for your time to reply,

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