Storage rules for C variables
Local variables (declared within a function) are stored on the stack, provided they have not been declared with the static attribute. Local, non-static variables are sometimes called “automatic”...
View Articleconverting ppm to frequency
Oscillators and other frequency control devices specify their frequency variation in units of parts per million (ppm). The equation for this relationship is, delta_frequency = (f x ppm)/ 10^6 where...
View ArticleWhat is an Open-Collector/Open-Drain Circuit?
Open-collector/open-drain is a circuit technique which allows multiple devices to communicate bi-directionally on a single wire. Open-collector/open-drain devices sink (flow) current in their low...
View ArticleWindows XP – Tracking System Performance, Useful log counters
After running perfmon from Start->Run Memory:Pages/sec Number of pages read from disk or written to disk when Windows runs out of memory. Swapping information to and from the disk can slow down...
View ArticleFirmware architecture in five easy steps By Michael Barr
Firmware architecture in five easy steps By Michael Barr Embedded.com (09/21/09, 04:03:00 PM EDT) Over the past few years, I’ve spent a large amount of my time consulting with and training software...
View ArticleHow to create a Shutdown Icon on your Windows 7 Desktop
Steps Previous Next Step 1: (10/7/2011 3:48:44 AM) User left click on “Ribbon (property page)” in “Document1 – Microsoft Word” Previous Next Step 2: (10/7/2011 3:49:21 AM) User...
View ArticleA work around for ncelab: *F,CUMSTS: Timescale directive missing on one or...
I was getting this annoying fatal error when trying to simulate my design. ncelab: *F,CUMSTS: Timescale directive missing on one or more modules To get around this, what helped me was to use...
View ArticleThings stolen from my house on 6/15/2012
Our house got burglarized on Friday, 6/15/2012. These were the things we noticed that were stolen. If ever you run into these things with these serial/numbers on them, please let me know. Hopefully,...
View ArticleWhy is Runtime Broker consuming too much memory?
After upgrading from Win7 Ultimate to Win8 Pro, I began downloading Apps from the Store. After several days of using (and enjoying) Win8, I noticed that memory usage was getting pretty high and that...
View Articlencsim: *F,SVMLEX: System virtual memory limit exceeded – consider using 64bit...
I got the message above while trying to simulate a design using ncsim (Cadence’s Verilog simulator). Did a quick search on the internet but couldn’t figure out how to run ncsim in 64-bit mode. So,...
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