Arium Probes | SourcePoint™ Archives | Page 5 of 19

The UP Squared Chronicles Episode 4: Using Intel Processor Trace with POST Codes

Alan Sguigna

January 3, 2021
11:52 am

I became curious this past week on how UEFI handles POST codes. These are “markers” for the boot process, and tells you at what stage the platform initialization is. Can we easily correlate POST codes with the operation of the UEFI firmware?

The UP Squared Chronicles Episode 3: Intel Processor Trace

Alan Sguigna

December 21, 2020
8:31 am

Wow! It has been a while. I wrote Episode 2 of my open-source explorations into the AAEON Intel Apollo Lake-based Up Squared board back on June 7th. In that episode, I gave directions on how to build the UEFI debug image for the board, complete with source/symbols for consumption by JTAG debuggers like SourcePoint. In this episode, I show source-level debug with SourcePoint, and take advantage of Intel Processor Trace on the board.

Coding to the SED API: Part 1

Alan Sguigna

August 30, 2020
4:11 pm

In my UEFI Forum webinar, I demonstrated a utility function for stressing PCI Express ports at-scale using JTAG. Let’s walk through the source code and see how it works under the hood.

Debugging Intel CATERR using Embedded ITP

Alan Sguigna

July 26, 2020
8:44 pm

In my webinar with the UEFI Forum, I demonstrated some of the utility of using JTAG functionality within BMCs to perform out-of-band debug. This is a tutorial on the coding practices to use the SED API.

PCI Express LTSSM stress using BMC-based Embedded JTAG/ITP

Alan Sguigna

July 19, 2020
4:27 pm

This past week, I did a webinar in collaboration with the UEFI Forum on JTAG-based UEFI Debug and Trace. This reviewed some of the often-used tools for low-level triage of difficult-to-diagnose, intermittent bugs. Near the end, I demonstrated the usage of technology running directly down on a BMC to perform low-level functions not achievable with firmware or OS-based applications.

Webinar on JTAG-based UEFI Debug & Trace

Alan Sguigna

June 24, 2020
2:23 pm

ASSET will be presenting JTAG-based UEFI Debug & Trace at the UEFI Forum’s 2020 Virtual Plugfest, on July 14th.

The UP Squared Chronicles Episode 2: Building the UEFI Image

Alan Sguigna

June 7, 2020
5:55 pm

In Episode 1 of the UP Squared Chronicles, I used my DediProg SF100 to flash a debug image equipped with source and symbols onto the UP Squared board. This week, I describe the build process.

More Skylake Server CScripts Explorations

Alan Sguigna

May 31, 2020
1:18 pm

In Running Intel CScripts on Skylake servers, I gave a brief introduction to the Intel Customer Scripts (CScripts), and showed how to run them with SourcePoint. Today, I do a deeper dive.

Open Source Firmware explorations using DCI on the AAEON UP Squared board

Alan Sguigna

May 16, 2020
4:23 pm

As you may have seen from my last blog, my old favorite open-source platform, the MinnowBoard, has been declared End-of-Life. So how am I to satisfy my innate need to explore the low-level interfaces between silicon, hardware and firmware? I may have found a new open source firmware board that meets my needs.

The MinnowBoard Chronicles Episode 46: Using the DediProg SF100

Alan Sguigna

May 3, 2020
3:04 pm

I’ve been working from home for quite some time now, and don’t have access to all the equipment I normally would have at the office. And I’ve wanted to flash the MinnowBoard (and some other boards). So, rather than wait for the coronavirus shelter-in-place to lift, I went out and bought a DediProg SF100 of my own. Here’s my out-of-the-box experience.

Category: Arium Probes | SourcePoint™

The UP Squared Chronicles Episode 4: Using Intel Processor Trace with POST Codes

The UP Squared Chronicles Episode 3: Intel Processor Trace

Coding to the SED API: Part 1

Debugging Intel CATERR using Embedded ITP

PCI Express LTSSM stress using BMC-based Embedded JTAG/ITP

Webinar on JTAG-based UEFI Debug & Trace

The UP Squared Chronicles Episode 2: Building the UEFI Image

More Skylake Server CScripts Explorations

Open Source Firmware explorations using DCI on the AAEON UP Squared board

The MinnowBoard Chronicles Episode 46: Using the DediProg SF100

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