• Flavia: the Free Logic Array

    Check out this amazing project from John Beetem. Make small Digital Logic designs without the heavyweight vendor tools. Flavia tool chain lets you make bit files for the Papilio One 250K with completely FLOSS software! Only CPLD sized designs are possible, but this is a boon for learning Digital Logic on ARM based boards like…

  • Papilio DUO Pre-Orders Now Available On Backerkit

    Great news! Papilio DUO pre-orders are finally here , we are using Backerkit to take pre-orders and we are offering so many exciting add-ons with some good discounts. Please visit the pre-orders page here to take advantage from these discounts and make sure you get your Papilio DUO board as soon as we get them in stock.…

  • Why Oscilloscope Bandwidth Matters

    This is a great article about why Oscilloscope Bandwidth matters. If you are looking to buy a new Oscope soon then give this a read. Thanks Adafruit! The most obvious factor when choosing an oscilliscope is bandwidth. 50MHz is better than 20MHz, and 100MHz is definitely better than 50MHz, etc., but what does that number…

  • A CPLD Video Card With VGA And NTSC

    Here is a project to generate VGA and NTSC from a CPLD. The brains of the outfit is a $5, 100-pin CPLD from Xilinx. Apart from that, the rest of the components are a crystal, PLL, and an almost hilarious number of resistors for the R2R ladder. The one especially unique component is the 25.056815 MHz…

  • Intelligent LEDs – Using WS2812B LEDs with the Papilio.

      Hamster shows us how to use the latest and greatest WS2812B LEDs! The interface is pretty simple – the state of the bus has to be reset by holding the data signal low for 50us, followed with sending out 24 bits for each LED that is connected in the string. The ‘1’ bits are sent…

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