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Viewing posts from February, 2015

Timing Diagrams Made Easy

Posted by: Dave Vandenbout in Blog Post 2 years, 2 months ago

If you do electronics design, especially digital circuits, you'll eventually find yourself drawing timing diagrams showing the clock, control and data waveforms. They help you clarify the sequencing of data and control signals as they pass through your circuit. They also serve as valuable documentation to others who might use your design later. <<more...>>

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Cut the Cord: Using the ZPUino Without an FTDI Cable

Posted by: Dave Vandenbout in Blog Post 2 years, 2 months ago

Cutting the cord. In my previous two posts, I've talked about extending the ZPUino with custom peripherals and creating a terminal-like communication link over USB to an application running in an FPGA. Now it's time to combine those two concepts to create a terminal link to the ZPUino over the USB link of a XuLA board. <<more...>>

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Multi-Year Z80 Build

Posted by: Dave Vandenbout in Blog Post 2 years, 2 months ago

Let's face it: a lot of us buy dev boards but never get around to doing anything with them. We have the attention span of gnats. But not Roger Milne! He's been on a three-year mission to build a Z80 computer in his spare time. And he did it! Take a look at the block diagram for his home build: <<more...>>

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