The Boundary-Scan Handbook, 4th edition @2016

2046 · 发表于 2022-10-26 21:26:06

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本帖最后由 2046 于 2022-11-8 14:30 编辑

It has been 10 years since the third edition of this book first appeared. Since then it has been translated into the Japanese language by a team of engineers at Fujitsu, led by Shuichi Kameyama. I was amazed at the effort this required, and greatly appreci- ated the care and thoroughness that was exhibited by this team.

Also in this decade, a new standard, 1149.8.1, has appeared which is an addition to the family of supporting test standards. The “Dot-81” standard is aimed at sup- porting the test of passive components that often surround integrated circuits on boards. A classic example of such components is connectors that transfer signals to/ from these ICs to other plug-in boards or cables. Boards that possess passive com- ponents still have to have them tested to assure they are free of open or shorted connections. A new chapter (10) has been added to describe this new standard.

The base standard, 1149.1, has undergone a very extensive revision and expan- sion, and this is called IEEE Std 1149.1-2013. This revision is detailed in its own chapter (12). This reflects the fact that the underlying basic concepts of Boundary- Scan testing are still the same (those covered in Chaps. 1–4) while new concepts have been added driven by advancing technology in the electronics industry. This new revision also has caused some significant changes and additions to the BSDL language (of Chap. 2). It is expected that well into the future, we will be seeing older devices (pre-2013) on boards along with newer devices that are compliant with the 2013 revision. Thus it was logical to retain the first chapters of this book in their largely pre-2013 state, while detailing the 2013 revision later in this book. That said, references in the earlier chapters are made to specific technology enhancements found in the new, post-2013 information.

The 23+ years that Boundary-Scan has been with us represents a full generation of engineers who have benefited from its contributions. As readers will see as they continue on, “This is not your father’s Boundary-Scan”.

Fort Collins, CO, USA Kenneth P. Parker