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DIY JTAG progammer for CPLD board

Companion project to my DIY CPLD board project here

hackhead79hackhead79
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ongoing project

This project was created on 04/02/2014 and last updated 10 years ago.

Description

This is a prerequisite project to my DIY CPLD project here on hackaday.io.
The CPLD board needs a means of being programmed: hence this project to build the matching programmer for the board.
For this I'll follow the tutorial on startingelectronics.com (http://startingelectronics.com/projects/xilinx-parallel-programmer/ ).

Components

  • 2 × 74LVX 125 D Quad 3-state buffer as a replacement to the 74HC125N needed for the tutorial
  • 1 × set for 14-pin ribbon cable including plugs
  • 1 × a few other components - see tutorial

Project Logs
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  • Only a few updates here

    hackhead79 • 04/02/2014 at 20:50 • 0 comments

    Most of the updates will be found at my other project (DIY CPLD board). I'll post a few updates of the PCB making process here though.

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Peter Burkimsher wrote 06/30/2014 at 19:35 • point
The parallel programmer is great for desktops, but I have a laptop without a parallel port.
I'm using the gz_load program from the GuzuntyPi project on my Raspberry Pi, which works to program 3.3V JTAG.
https://github.com/Guzunty/Pi/wiki

I also have an FPGA, but that uses 2.5V JTAG. Building a voltage level converter for that is an ongoing project for me!

  Are you sure? yes | no

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