Gadget Factory

VHDL

  • Here is How The Dark Side Got Started With Their Robot Army!

    Nowadays, you may be fed up of Star Wars jokes, baits and so on. I am sorry, I could not resist the temptation. Anyway, this time, at least, was not a joke nor a lie. Today´s article brings the real truth to you. If you want to build your own robot, as simple as you…

  • MatthewH puts together a simple SDRAM controller for use with the Papilio Pro.

    Papilio user Matthew Hagerty put together a very nice implementation of a simple SDRAM controller for the Papilio Pro FPGA. Written in VHDL, it sacrifices some speed for ease of use and simplicity. After all, not every project needs to use the full capacity of the SDRAM chip. You can read about his epic adventure…

  • FPGA Platformer Game Written Entirely In VHDL

    FPGA enthusiast and nostalgic gamer Ben created a 1980s-style side-scrolling platformer game (think Super Mario Bros.) entirely in VHDL. Hence there is no microprocessor present. Ben’s game was originally written to run on an Altera dev board, and some other hardware. The hardware consists of: •A single FPGA •Power and clock circuitry •A controller, which…

  • VHDL 101: Beginner’s Guide To VHDL

    Paul Clark from Design Spark has a great wiki on VHDL 101 – Combinational Logic that we thought we’d repost here to give those of you that are new to VHDL kind of a kick start.  This one is actually the follow-up to his first article titled What Is VHDL that has some great explanations of…

  • I2C Master Writer VHDL code

    Papilio user Wicked wrote some nice VHDL code that performs I2C writes with the goal to initialize a camera and video encoder. Wicked was originally sending the I2C initializations commands using a Picoblaze soft processor but that wasted a lot of memory that would be better used by the camera. So he decided to write…

  • BenL’s first cut at a Real Time 3D Display Core!

    Ben Leperchey is at it again with a 3D display core on the Papilio Plus FPGA board. He just posted the first bit file to the Gadget Factory forum:  

  • Undocumented Dx display running with an FPGA

    He everyone! Today we got another great FPGA based project for you that we found over at hamsterworks.co.nz. Mike Field a.k.a Hamster wanted to use an undocumented display board from Deal Extreme with an FPGA board but as mentioned in the title there was absolutely no documentation available for this display except an Arduino Library written…

  • FPGA DC Motor Control

    Hey everyone! Here is a nice project that we found over at PyroElectro.com over how to interface to an FPGA to allow precise control over a DC motor! Chris from Pyroelectro wrote a very nice documentation to explain how to use a CPLD or an FPGA to take input from one device and then output…