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PSoC has a single GPIO interrupt vector which is common for all the GPIO pins.  This poses some problems when interrupts are enabled on multiple GPIO pins.  Let us discuss the problems introduced by this architecture and techniques to address these problems.   The interrupt logic of a GPIO cell is shown in figure below.       The...
Posted to The PSoC Hacker Blog on 23 Mar 2014 by graa
Here is a video that I created for Getting started with PSoC Designer 5.3. View it in 720p or 1080p for higher quality.
Posted to The PSoC Hacker Blog on 11 Oct 2012 by graa
Here is a video I made on introduction to PSoC 1 architecture and design flow.
Posted to The PSoC Hacker Blog on 01 Oct 2012 by graa
Back to the blog world after a long period of inactivity. In the past few months, I have had a chance to work on a very interesting project for our CEO T.J. Rodgers.  He is donating 152 wine fermenters to the U.C Davis School of Enology and Viticulture.   A couple of articles that talk about the project:...
Posted to The PSoC Hacker Blog on 19 Mar 2011 by graa
The paper I wrote for FPT was regarding Partial Dynamic Reconfiguration in a PSoC device. I used a temperature compensated fan controller design originally designed by Dave Van Ess as the example. This design dynamically reconfigures the UART and TachTimer.   This is the demo table set-up. All of the other demos were Xilinx Virtex or Spartan.  If...
Posted to C.U. Around: Cypress University Program Blog on 12 Dec 2009 by pkx
The E2PROM user module is a very handy user module for emulating an E2PROM in the Flash program memory.  Here are some key points to remember while using the E2PROM user module.  My apologies for the very long article.  Wanted to keep it short, but as I kept adding information this grew into a 1000+ word blo(n)g.    User Module Parameters...
Posted to The PSoC Hacker Blog on 22 Sep 2009 by graa
A few weeks back I got to go visit Fender in Phoenix AZ. I have been there many times and enjoy each visit. I truly believe they should call the company “My day job” because everyone seems to be a musician. (The receptionist isn’t a musician but she like musicians and it is nice to work at a place where the musicians have paying gigs.) Their lobby...
Posted to Dave's Corner: The Dave Van Ess Blog on 03 Sep 2009 by Stub for 6132621
At the end of July Dr. Rabi Mahapatra of Texas A&M, a professor I have known and worked with for many years was in San Jose. He has been telling me about a new university he has founded in India in Bhubaneswar where he grew up:   CUA signed an MOU with the university to provide PSoC kits and training. The students will start using...
Posted to C.U. Around: Cypress University Program Blog on 02 Sep 2009 by pkx
Dave Van Ess and I spent some time in Austin at the American Society of Engineering Educators conference this summer. It was 0ver 100 Deg. F every day we were there. We spoke with over 100 educators and introduced them to the next generation of PSoC . Here is a picture of Dave showing one of the professors a PSoC Creator design. To get your own...
Posted to C.U. Around: Cypress University Program Blog on 26 Aug 2009 by pkx

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