HardLabs

P8x backplane

ksr·p8x·hardware/backplane/kicad/p8x-backplane.kicad_pcb

P8x backplane PCB layout, top view — open source board by ksr

About the P8x backplane PCB

P8x backplane is an open source PCB design by ksr, published on GitHub. It is a 4-layer board measuring 262 × 128 mm, with 27 components from 17 distinct parts.

By type, the board carries 12 capacitors, 9 connectors, 5 resistors and 1 LED.

From the project

The P8X backplane (the passive bus motherboard) as a KiCad 4-layer board, generated by generators/genbackplane.py from the bps/bpn structure in geneagle.py: eight DIN41612 female vertical sockets in one row, power entry, bulk + per-slot decoupling caps, the wired-OR pull-ups, GND

The P8X backplane (the passive bus motherboard) as a KiCad 4-layer board, generated by generators/genbackplane.py from the bps/bpn structure in geneagle.py: eight DIN41612 female vertical sockets in one row, power entry, bulk + per-slot decoupling caps, the wired-OR pull-ups, GND (In1) and VCC (In2) planes, and the full parallel-bus netlist.

Status: placed + routed + verified (PASS). 262 × 128 mm, 8 slots on a 28 mm pitch, left-justified; power/pull-up/termination parts on the right. Routed with Freerouting and checked by generators/checkcard.sh` (0 blocking DRC, 0 unconnected, keepout + fab…

P8x backplane bill of materials (BOM)

27 components, 17 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
SLOT1
J1
1
SLOT2
J2
1
SLOT3
J3
1
SLOT4
J4
1
SLOT5
J5
1
SLOT6
J6
1
SLOT7
J7
1
SLOT8
J8
1
PWR-5V
J11
1
PWR
LED1
8
100nF
C1, C2, C3, C4, C5, C6, C7, C8
2
470uF
C11, C12
2
150pF
C13, C14
1
1K
R1
2
100R
R2, R3
1
10K
R4
1
8X10K
RN1

P8x backplane design files

The KiCad project lives in the ksr/p8x repository on GitHub; these links point at the commit this page was built from.

P8x backplane: common questions

How big is the P8x backplane PCB?

The P8x backplane measures 262 × 128 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the P8x backplane?

27 components, from 17 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.

Where can I download the P8x backplane design files?

From the ksr/p8x repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the P8x backplane design in my own project?

The repository has no license, so all rights stay with ksr. Use it as a reference, and ask the author before reusing the design.

More boards in p8x