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BitBar

Member Since: October 17, 2006

Country: United States

  • Got it a few days ago, and figured out the wiring. Very straightforward to use, but it requires the controller to constantly send bits: 192 bits per line pair (sent 6 at a time during 32 clock cycles), 16 line pairs per screen… so each full screen refresh requires 512 clock ticks. You need to refresh it at minimum 50 times per second, otherwise people will start to see a vertically scrolling line instead of a full picture, so that’s 25600 clock ticks, minimum for a full persistent picture… and that’s assuming you’re okay with only 8 colors: Black, White, Red, Yellow, Green, Cyan, Blue, Magenta. If you want to have more colors, you will need to drive it an order of magnitude faster to incorporate modulation. So that’s why it says 16MHz is about the slowest that can drive these.

  • So, did you ever find the impulse diagram? I am on the same page as you, a library is cute and all, but I don’t really want to spend hours reverse engineering how that code works.

No public wish lists :(