Embedded Diagnostics Archives | Page 4 of 9

JTAG and run-control API in BMCs for at-scale debug

Alan Sguigna

December 21, 2017
7:33 am

Truly at-scale debugging requires both JTAG Master and run-control functions to be embedded within server BMCs. Why is this true, and what extra capabilities become available?

JTAG Master function for embedded debug and test

Alan Sguigna

December 10, 2017
4:49 pm

In my last article, I described how the Open Compute Project (OCP) Project Olympus server designs have been put into the public domain by Microsoft Azure. Inherent in the Olympus servers is the hardware connection between the ASPEED BMC and the CPU JTAG chain. To make the most of this connection for hardware-assisted debug and test purposes, a high-performance, secure JTAG Master function is needed within the BMC.

Microsoft Project Olympus Schematics and Embedded JTAG Run-Control

Alan Sguigna

December 3, 2017
4:26 pm

As part of the Open Compute Project, Microsoft Azure is leading the charge in providing the technical information needed to democratize the server industry. Recently, they put into the public domain the full schematics and board files for an Intel Xeon Scalable Processor (Skylake-EP) server design. Reviewing the schematics provides great insight into the hardware design implementation needed to support at-scale debug via embedded JTAG run-control.

The MinnowBoard Chronicles Episode 28: Returning my AMD Ryzen 7 1700X CPU

Alan Sguigna

November 29, 2017
8:54 pm

Yes, I received an older AMD Ryzen 7 1700X CPU from Amazon. It’s RMA time!

The MinnowBoard Chronicles Episode 26: Linux image build segmentation faults on AMD?

Alan Sguigna

October 22, 2017
5:21 pm

It has been quite an adventure over the last week. I’m getting intermittent segmentation faults during my Yocto Linux image builds. Could it be a problem with my new AMD Ryzen 7 1700X CPU?

The MinnowBoard Chronicles Episode 25: Yocto builds for the MinnowBoard and the Portwell Neptune Alpha

Alan Sguigna

October 16, 2017
7:05 am

In Episode 24, I finished off my new build machine, successfully did a QEMU image build on it, and loaded an off-the-shelf Ubuntu image into my new MinnowBoard Turbot. This week, I tackled a MinnowBoard Linux image build using Yocto, loaded it into my MinnowBoard, and also set about doing a Yocto image build for the Portwell Neptune Alpha board. But I ran into some problems.

ASSET attends the Open Compute Project Engineering Workshop

Alan Sguigna

October 4, 2017
8:05 am

This past week, I sat in on some workshops of the Open Compute Project (OCP) in Dallas, TX. There are a lot of exciting things happening in the world of open source hardware and software.

ASSET exhibits at the AUTOTESTCON Conference

Alan Sguigna

September 19, 2017
7:38 am

I was up in Chicago last week, attending the IEEE-sponsored AUTOTESTCON conference. ASSET demonstrated our ScanWorks boundary-scan test support of the Teradyne High-Speed Subsystem (HSSub).

Book Review: Rootkits and Bootkits: Reversing Modern Malware and Next Generation Threats

Alan Sguigna

August 13, 2017
2:26 pm

The new book from Matrosov, Rodionov and Bratus gave me some amazing insights into reverse engineering and malware mitigation. What a great read!

Embedded JTAG for Boundary-Scan Test eBook

Alan Sguigna

July 19, 2017
2:16 pm

Category: Embedded Diagnostics

JTAG and run-control API in BMCs for at-scale debug

JTAG Master function for embedded debug and test

Microsoft Project Olympus Schematics and Embedded JTAG Run-Control

The MinnowBoard Chronicles Episode 28: Returning my AMD Ryzen 7 1700X CPU

The MinnowBoard Chronicles Episode 26: Linux image build segmentation faults on AMD?

The MinnowBoard Chronicles Episode 25: Yocto builds for the MinnowBoard and the Portwell Neptune Alpha

ASSET attends the Open Compute Project Engineering Workshop

ASSET exhibits at the AUTOTESTCON Conference

Book Review: Rootkits and Bootkits: Reversing Modern Malware and Next Generation Threats

Embedded JTAG for Boundary-Scan Test eBook

Archives

Categories