Debug UEFI code by single-stepping your Coffee Lake-S hardware CPU

Teddy Reed of Facebook has a new blog post on using Intel DCI, UEFI Tool, Intel System Studio, and other tools:

TL;DR, if you have a newer CPU & chipset you can purchase a $15 off-the-shelf cable and single-step your hardware threads. The cable is a USB 3.0 debugging cable; and is similar to an ethernet crossover cable in the sense that the internal wiring is crossed. Be careful with this cable as unsupported machines will have undefined behavior due to the electronics of USB.

https://casualhacking.io/blog/2019/6/2/debug-uefi-code-by-single-stepping-your-coffee-lake-s-hardware-cpu

Leave a Reply

Please log in using one of these methods to post your comment:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s