(HTB//HW) Debugging Interface

Difficulty: Very easy

With this challenge comes an archive that contains a .SAL file, which is a compressed file with binary data coming from a Saleae proprietary logic analyzer. Hopefully, the Logic 2 software that can be used to read those file is free to use.

When opening the file in Logic 2, we can easily spot the bit duration, and identify the Bit rate:

32.04 microseconds is equivalent to a bit rate of around 32230 bits/second. Once the Async Serial analyzer properly configired, we can jump to the Terminal tab to see the ASCII strings that transitted on the line:

As a side note, I first tried to solve this challenge using PulseView, but I did not manage to setup the UART decoder properly, and only got gibberish. Probably a skill issue tho.