2 layers
Encoder
byrantech/laptop
anyon_e, a highly integrated, high end, open source laptop. Attempt the impossible.
7 parts4.3kMIT
2 layers31 × 31 mm
Comparator
vishvish2/BERT_FPGABit Error Rate Tester Project
- Size
- 31 × 31 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 7
- Nets
- 7
- Pads
- 21
- Tracks, vias
- 32, 2
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 5 Nov 2025
- Updated
- 19 Sep 2026
Overview
Comparator is an open-source printed circuit board by vishvish2, from the vishvish2/BERT_FPGA repository on GitHub, published under the MIT licence. It is a 2-layer board of 31 × 31 mm with 7 parts on 7 nets, routed with 32 tracks and 2 vias.
Its parts include 2 capacitors, 2 resistors and 2 connectors. It belongs with the fPGA and programmable logic boards and the FPGA and CPLD boards of this library.
README
README.mdThe repository can be forked and cloned to any local folder using git clone.
Folders
The folder Tx contains the Quartus Prime files for the FPGA used as a transmitter
The folder Rx contains the Quartus Prime files for the FPGA used as a receiver
To view the Quartus Prime designs for each:
- Open the Quartus Prime GUI
- Go to
File -> Open - Navigate to the directory you cloned the repository to.
- Open
Tx/BERT.qpfto view the design for the transmitter - Open
Rx/BERT_Rx.qpfto view the design for the receiver
The FPGA board used was a DE0-Nano Altera board with the EP4CE22F17C6 FPGA chip.
The folder PCB contains the KiCad design files for the comparator circuit used for transmitting a bitstream between the transmitter and receiver FPGAs.
Parts
7| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | C | Capacitor_SMD:C_0805_2012Metric | C1, C2 |
| 2 | R | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 1 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | Conn_01x03 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J1 |
| 1 | ~ | Comparator:MAX_997_MSOP-8_3x3mm_P0.65mm | MAX997EUA+1 |
Questions
How big is the Comparator PCB?
It measures 31 × 31 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Comparator use?
7 parts. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Comparator KiCad files?
From the vishvish2/BERT_FPGA repository on GitHub, at the commit this page was made from: the board is PCB/Comparator/Comparator.kicad_pcb and its schematic PCB/Comparator/Comparator.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Comparator design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).
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