butterstick-hardware
Basic ECP5 based GigE to SYZYGY interface. (by butterstick-fpga)
advent-calendar-of-circuits-2020
1 circuit board design a day for 31 days. (by gregdavill)
| butterstick-hardware | advent-calendar-of-circuits-2020 | |
|---|---|---|
| 6 | 1 | |
| 185 | 164 | |
| 1.1% | - | |
| 2.2 | 1.8 | |
| 8 months ago | almost 3 years ago | |
| HTML | Python | |
| GNU General Public License v3.0 or later | GNU General Public License v3.0 or later |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
butterstick-hardware
Posts with mentions or reviews of butterstick-hardware.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-03-21.
- Good FPGA dev kits for hobby CPU dev?
- Power IC for ECP5
- More questions about FPGA programming hardware
- what is best affordable FPGA board to do that?
- Is it possible to build a RISCV Core on FPGA which runs Linux on top of it?
-
Beginner issues using ButterStick dev board
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
Posts with mentions or reviews of advent-calendar-of-circuits-2020.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-01-09.
-
Beginner issues using ButterStick dev board
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.
What are some alternatives?
When comparing butterstick-hardware and advent-calendar-of-circuits-2020 you can also consider the following projects:
linux-on-litex-vexriscv - Linux on LiteX-VexRiscv
orangecrab-hardware - ECP5 breakout board in a feather physical format
basic-ecp5-pcb - Reference design for Lattice ECP5 FPGA. Featuring Raspberry Pi interface and 6 PMODs