Collaborate Disseminate
When we first saw the Raspberry Pi Pico and its RP2040 microcontroller last month it was obvious that to be more than just yet another ARM chip it needed something special, and that appeared to be present in the form …read more
Continue reading Bitbanged DVI On A Raspberry Pi RP2040 Microcontroller
With some clever hacks and fast IO work, it’s possible to get your average garden-variety microcontroller to output some form of video. Old analog standards like composite and VGA are just slow enough that it’s possible to bitbash one’s way to success. If you’re serious about video work, however, you’ll …read more
Continue reading An Open Source HDMI Implementation for FPGAs
Human beings like pictures which is probably why there’s the old adage “A picture’s worth a thousand words.” We take computer graphic output for granted now, but even in the earliest days for Teletypes and line printers, there was artwork made from characters ranging from Snoopy to Spock. [Wenting Z] continues the tradition by creating an FPGA that converts VGA video to ASCII art and outputs it via DVI.
The device uses a Xilinx Virtex device and uses about 500 LUT (look up tables) which is not much at all. You can see a video (that includes an overlay of …read more