Beginner issues using ButterStick dev board

• butterstick-hardware

  6 184 2.2 HTML

  Basic ECP5 based GigE to SYZYGY interface.

  

The overview says the onboard oscillator is 60 MHz. But, the schematic says it's 30 MHz (visible on page 6), which I confirmed with a blinking LED timing test. Can I configure its speed somehow? I read that a PLL can multiply the frequency, but I don't know how those work or how to configure or implement one, and I wasn't expecting to need to when I read that the clock is 60 MHz. I thought that maybe I can trigger on both clock edges, but I read that that doesn't work without special support from the FPGA, and mine doesn't have it (or the compiler doesn't).

• advent-calendar-of-circuits-2020

  1 164 1.8 Python

  1 circuit board design a day for 31 days.

Hey, while I have you attention, do you know of anywhere I can just buy a SYZYGY-to-video adapter? Composite, S-Video, VGA, HDMI, doesn't matter. I found Greg Davill made a couple HDMI designs in his Advent Calendar of Circuits 2020 (#1 and #14), but making them myself is a good bit of money, time, and effort for something that feels like a distraction from what I actually want to do.

• InfluxDB

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