SJTAG

SJTAG Newsletter
http://www.sjtag.org

 

Issue 20 - Q2-2012

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From the Chair - An Appeal to the Automotive Sector

The SJTAG team has had no representation from the automotive industry for some time, despite our awareness that the principles behind SJTAG were important to that sector.

Moreover, we feel sure that SJTAG would benefit from some technical insights from that sector, particularly as it is common in that industry to integrate products from several vendors while retaining a simple approach to diagnostics and servicing.

So, our appeal is quite straightforward: If you are working in the automotive electronics industry then please consider joining us. If you know someone in that sector, then please forward this newsletter to them (use the link at the bottom of this mailing).

Automotive image

Posters at ITC 2012

We have been advised that there will once again be a "Meet the Working Groups" poster at ITC 2012, to promote the work of the various standards development teams within the IEEE Test Technology Standards Group (TTSG).

SJTAG once again expects to be represented, and we again hope to be able to host a Fringe Technical Meeting.

Description: ITC 2012

ITC Test Week 2012 will again be held at the Disneyland Hotel, Anaheim, 4-9 November.

http://www.itctestweek.org/


Board IDs

One key element that we have identified is the necessity of having a consistent means of electronically identifying the board types that comprise a system. Many systems can be reconfigured or upgraded by the end user, so it's not sufficient to depend on the drawing set of system as it was delivered.

While ID devices already exist and can provide unique identification of the board (an electronic serial number), and provide storage for additional user data, they're rarely readable by JTAG. This is an example of a feature that may have been considered optional for traditional board level applications but needs to become mandatory at the system level.

A board ID may seem like a simple enough thing to implement but there are complications to consider. Firstly, obtaining an electronic serial number won't necessarily tell you the type of board or its build standard without reference to some external database and secondly, once a board is installed in a system it becomes part of a hierarchy: For example it may carry optional daughterboards that in turn need to be identified.

The group is currently exploring what the minimum requirements are for the implementation of a JTAG accessible board ID. So, how would you tackle this problem?

Board with Mezzanine

http://www.sjtag.org/minutes.html


Next Newsletter

The Q3-2012 edition of this newsletter will be published towards the end of July 2012. Copies of past newsletters are always available on the SJTAG website.

http://www.sjtag.org/newsletters.html


News from the website

A selection of recent RSS/ATOM news items from the website:

(Issued: Wed, 18 Apr 2012 20:41:00 GMT)

The minutes from the weekly meeting held on April 2nd, 2012 have now been published. Featured discussions: a. Board ID: What is the minimum equipment and services needed?.

URL: http://www.sjtag.org/minutes/minutes120402.html


Meeting Minutes from March 26th (Issued: Tue, 03 Apr 2012 21:08:00 GMT)

The minutes from the weekly meeting held on March 26th, 2012 have now been published. Featured discussions: a. Board ID: What is the minimum equipment and services needed?.

URL: http://www.sjtag.org/minutes/minutes120326.html


Meeting Minutes from March 19th (Issued: Tue, 27 Mar 2012 17:56:00 GMT)

The minutes from the weekly meeting held on March 19th, 2012 have now been published. Featured discussions: a. Discussion: SJTAG in a nutshell - What I think SJTAG is all about (continuation).

URL: http://www.sjtag.org/minutes/minutes120319.html


Meeting Minutes from March 12th (Issued: Tue, 27 Mar 2012 17:54:00 GMT)

The minutes from the weekly meeting held on March 12th, 2012 have now been published. Featured discussions: a. Discussion: SJTAG in a nutshell - What I think SJTAG is all about (continuation).

URL: http://www.sjtag.org/minutes/minutes120312.html


Meeting Minutes from March 5th (Issued: Tue, 27 Mar 2012 17:52:00 GMT)

The minutes from the weekly meeting held on March 5th, 2012 have now been published. Featured discussions: a. Discussion: SJTAG in a nutshell - What I think SJTAG is all about (continuation).

URL: http://www.sjtag.org/minutes/minutes120305.html


Meeting Minutes from February 27th (Issued: Mon, 05 Mar 2012 20:02:00 GMT)

The minutes from the weekly meeting held on February 27th, 2012 have now been published. Featured discussions: a. Reaffirmation of officers, b. Discussion: SJTAG in a nutshell - What I think SJTAG is all about.

URL: http://www.sjtag.org/minutes/minutes120227.html


Meeting Minutes from February 20th (Issued: Mon, 27 Feb 2012 19:47:00 GMT)

The minutes from the weekly meeting held on February 20th, 2012 have now been published. Featured discussions: a. Reaffirmation of officers, b. Proposed reorganization of SJTAG forums, c. SJTAG Primitives.

URL: http://www.sjtag.org/minutes/minutes120220.html


Meeting Minutes from February 13th (Issued: Mon, 27 Feb 2012 19:45:00 GMT)

The minutes from the weekly meeting held on February 13th, 2012 have now been published. Featured discussions: a. Tutorial on IEEE Std. 1149.7 from Adam Ley (continued).

URL: http://www.sjtag.org/minutes/minutes120213.html


Meeting Minutes from February 6th (Issued: Mon, 27 Feb 2012 19:44:00 GMT)

The minutes from the weekly meeting held on February 6th, 2012 have now been published. Featured discussions: a. Tutorial on IEEE Std. 1149.7 from Adam Ley.

URL: http://www.sjtag.org/minutes/minutes120206.html