2 open source boards using the 125 MHz
Real designs built with the 125 MHz, from public GitHub projects: a quick way to see how others power, decouple and connect it. Each board comes with its KiCad files, full parts list and a render — and you can simulate its firmware on HardLabs.
FPGAGp4-hil
azonenberg
160 × 62 mm450 parts4LLGPL-3.0260
FPGACat5-tdr
140 × 100 mm369 parts4LNo license124
The 125 MHz in open source designs
The gallery holds 2 open source boards using the 125 MHz from 2 GitHub repositories; a typical one measures about 150 × 81 mm and carries around 410 components.
100% use four copper layers or more, and 50% carry an open source license.
The most starred is Gp4-hil by azonenberg.
Parts used alongside the 125 MHz
Microcontrollers on boards using the 125 MHz
125 MHz: common questions
Where can I find a 125 MHz reference design?
Each of the 2 boards on this page is a real design using the 125 MHz. Open one to see how it is wired up, with the full BOM, a render of the layout and links to its KiCad files.
What parts are used alongside the 125 MHz?
The 25 MHz, KSZ9031RN and LTC3374-QFN appear in the most repositories here.
Which microcontrollers do boards using the 125 MHz use?
Most are built on FPGA (2).
How big is a typical board using the 125 MHz?
The median is 150 × 81 mm, and 0% are two-layer designs.
What is the most popular open source board using the 125 MHz?
By GitHub stars, Gp4-hil by azonenberg, with 260 stars.
Can I simulate one of these boards using the 125 MHz before building it?
Yes. HardLabs turns a board's netlist and BOM into a working simulation, so you can boot and test firmware against it with no hardware on your desk.