blog dds

2003.10.25

A Unix-based Logic Analyzer

A circuit I was designing was behaving in unexpected ways: the output of a wireless serial receiver based on Infineon's TDA5200 was refusing to drive an LS TTL load. To debug the problem I needed an oscilloscope or a logic analyzer, but I had none. I searched the web and located software to convert the PC's parallel port to a logic analyzer. I downloaded the 900K program, but that was not the end. Unfortunately the design of Windows 2000 does not allow direct access to the I/O ports, so I also downloaded a parallel port device driver and a program to give the appropriate privileges to other programs. Finally, I also downloaded from a third site the Borland runtime libraries required by the logic analyzer. Needless to say that the combination refused to work.

Continue reading "A Unix-based Logic Analyzer"

2003.10.03

Software Complexity: Open Source vs Microsoft

In a readable and interesting paper titled CyberInsecurity: the cost of a monopoly seven notable security experts argue that the Microsoft's near monopoly in the desktop operating system and office productivity markets is creating a dangerous monoculture that exacerbates the effect of security vulnerabilities.

Continue reading "Software Complexity: Open Source vs Microsoft"


Creative Commons License Last update: Wednesday, March 8, 2017 2:07 pm
Unless otherwise expressly stated, all original material on this page created by Diomidis Spinellis is licensed under a Creative Commons Attribution-Share Alike 3.0 Greece License.