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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”...

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converting 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...

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What 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...

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Windows 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...

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Firmware 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...

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How 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...

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A 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...

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Things 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,...

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Why 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...

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ncsim: *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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