Video Digitizer Project

Posted on Feb 4, 2014

This is the original Circuit Cellar ImageWise Transmitter that I started with. I disassembled the code and made it grab two half size images. This allowed me to get an image from the odd field and even field. I then wrote code to subtract the two fields which left me with the image of the laser beam. Then it scanned the video line to return the lo

Video Digitizer Project
Click here to download the full size of the above Circuit.

cation of the max pixel intensity. So I ended up with 128 values. Each value represents a range. I wanted a version which was not copyrighted and was not processor dependent. So I breadboarded this version using TTL logic. (Note: there is an 8751 CPU on the board. ) I thought I had way to many parts. I also wanted to try out my Xilinx starter package. So I created a CPLD which replaces all the logic chips. The XC9536 CPLD replaced 10 TTL logic chips. (Note: This version had a 68HC11 daughter board. Which isn`t present in the photo. )

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