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2008•Journal of Chinese Computer SystemsRequires access

Implementation of JTAG Standard in ARM Debugging System

Huiqin He

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Abstract

In the 32-bit ARM embedded system,which is operating at a high speed and demands excellent real-time performance,how to realize the chip debugging by the limited methods is always a difficulty.Currently,The debug based on JTAG is the most popular technology in the highly running embeded ARM system.After discussing the JTAG debugging deeply,this paper provided a perfect JTAG debug method based on the GPIO ports,which is part of a ARM chip,and implemented this debugging technology.

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What this paper is about

In the 32-bit ARM embedded system,which is operating at a high speed and demands excellent real-time performance,how to realize the chip debugging by the limited methods is always a difficulty.Currently,The debug based on JTAG is the most popular technology in the highly running embeded ARM system.After discussing the JTAG debugging deeply,this paper provided a perfect JTAG debug method based on the GPIO ports,which is part of a ARM chip,and implemented this debugging technology.

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Available abstract

In the 32-bit ARM embedded system,which is operating at a high speed and demands excellent real-time performance,how to realize the chip debugging by the limited methods is always a difficulty.Currently,The debug based on JTAG is the most popular technology in the highly running embeded ARM system.After discussing the JTAG debugging deeply,this paper provided a perfect JTAG debug method based on the GPIO ports,which is part of a ARM chip,and implemented this debugging technology.

Key concepts: Debugging, Background debug mode interface, Computer science, Embedded system, ARM architecture, Nexus (standard), Computer hardware, Operating system

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