2 layers28.3 × 39.8 mm
LevelShifter
gusmanb/logicanalyzer
24 channel, 100Msps logic analyzer hardware and software
21 parts5.1kGPL-3.0
2 layers72.4 × 68.3 mm
Cartridge
TomKeddie/prj-supercon20193Credit to Thomas Flummer for the cartridge template. Credit to esden and thus bml for the Hyperram idea and schematic.
- Size
- 72.4 × 68.3 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 21
- Nets
- 39
- Pads
- 149
- Tracks, vias
- 576, 78
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 9 Oct 2019
- Updated
- 1 Jun 2026
Overview
Cartridge is an open-source printed circuit board by TomKeddie, from the TomKeddie/prj-supercon2019 repository on GitHub. It is a 2-layer board of 72.4 × 68.3 mm with 21 parts on 39 nets, routed with 576 tracks and 78 vias.
Its parts include 12 capacitors, 4 connectors and 2 ICs. It belongs with the retro computing and games boards of this library.
README
supercon2019/cartridge-pmod3/README.mdPMOD3 cartridge for 2019 supercon badge
Credit to Thomas Flummer for the cartridge template. Credit to esden and thus bml for the Hyperram idea and schematic.
Rev 1.2 is back from JLC PCB and works well.
Pin Mapping
The pin mapping was designed to keep differential pairs together. I ran out of time to do the more complex pcb routing needed needed for differential pairs but this could be done in the future.
Here are some pin definitions that might work for litex/migen. Note the clumsy but obvious switch from 1 base (silk) numbering to 0 base (fpga).
pmod_cubed = [
("pmod2", 0,
Subsignal("p1", Pins("genio:{}".format(6-1))),
Subsignal("p2", Pins("genio:{}".format(5-1))),
Subsignal("p3", Pins("genio:{}".format(2-1))),
Subsignal("p4", Pins("genio:{}".format(1-1))),
Subsignal("p5", Pins("genio:{}".format(23-1))),
Subsignal("p6", Pins("genio:{}".format(22-1))),
Subsignal("p7", Pins("genio:{}".format(10-1))),
Subsignal("p8", Pins("genio:{}".format(11-1))),
),
("pmod3", 1,
Subsignal("p1", Pins("genio:{}".format(4-1))),
Subsignal("p2", Pins("genio:{}".format(8-1))),
Subsignal("p3", Pins("genio:{}".format(9-1))),
Subsignal("p4", Pins("genio:{}".format(12-1))),
Subsignal("p5", Pins("genio:{}".format(15-1))),
Subsignal("p6", Pins("genio:{}".format(18-1))),
Subsignal("p7", Pins("genio:{}".format(20-1))),
Subsignal("p8", Pins("genio:{}".format(24-1))),
),
("pmod4", 2,
Subsignal("p1", Pins("genio:{}".format(3-1))),
Subsignal("p2", Pins("genio:{}".format(13-1))),Load options
Minimal
This one is for most people, just load the connectors and C13-C15 and you're done.
PMOD2 with HYPERRAM
If you want to you can not load PMOD4 and add Hyperram. It uses the same schematic as the icebreaker pmod. This option is untested YMMY.
Errata
v1.2
- Take care to make sure the pmod pins don't make contact with the sao pins on the badge. Installing the 5V JST connectors is a great way to do this.
v1.0
- DO NOT USE, 3.3V and GND are swapped on the badge connector
- As above the local 3.3V supplies are useless since the 5V is not VUSB as expected
- The pmod pin numbering on the silk is flipped by row, top is bottom and bottom is top
- There are 5 io that are either NC or only connected to the Hyperram, need to add a header
Schematic
v1.2
v1.0
Images
v1.2
Parts
21| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 10uF | tom-passives:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C4, C6, C7, C8, C9 |
| 4 | 100nF | tom-passives:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1, C2, C3, C5 |
| 3 | 10uF/10V | tom-passives:C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C10, C11, C12 |
| 3 | PMOD-2x6-FEMALE | tom-connectors:PMOD_2X6_PTH_RA_SOCKET | PMOD2, PMOD3, PMOD4 |
| 2 | Conn_01x02 | tom-connectors:JST-2-SMD | J2, J3 |
| 1 | Conn_01x09_Male | tom-connectors:PinHeader_1x09_P2.54mm_Horizontal | J1 |
| 1 | Conn_02x20_Odd_Even | tom-connectors:PinHeader_2x20_P2.54mm_Horizontal_Mirrored | CON1 |
| 1 | S70KL1281-pkl_memory | tom-semiconductors:BGA-24_5x5_6.0x8.0mm | U1 |
| 1 | W25Q128 | tom-semiconductors:SOIC-8_5.23x5.23mm_P1.27mm | U2 |
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Questions
How big is the Cartridge PCB?
It measures 72.4 × 68.3 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Cartridge use?
21 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 Cartridge KiCad files?
From the TomKeddie/prj-supercon2019 repository on GitHub, at the commit this page was made from: the board is supercon2019/cartridge-pmod3/cartridge.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Cartridge design in my own project?
Its repository states no licence, so its author keeps all rights: ask TomKeddie before reusing the design.