HardLabs

Backplane

ddanila·8080-cosim·fab/minimal-vga/revb/backplane.kicad_pcb

Backplane PCB layout, top view — open source board by ddanila

About the Backplane PCB

Backplane is an open source PCB design by ddanila, published on GitHub. It is a 2-layer board measuring 100 × 100 mm, with 13 components from 4 distinct parts.

From the project

Reconstruction of the Soviet/Estonian Juku E5104 processor board as both a physical PCB and a runnable, headless digital model. The project’s distinctive piece is an LVS-style check that compares the structural Verilog connectivity with the machine-readable board model.

Reconstruction of the Soviet/Estonian Juku E5104 processor board as both a physical PCB and a runnable, headless digital model. The project’s distinctive piece is an LVS-style check that compares the structural Verilog connectivity with the machine-readable board model.

- The C emulator and the structural jukutop model boot the real Juku ROM, render the same framebuffer, accept keyboard input, boot EKDOS from the vendored disk images, and reach disk BASIC READY. The deep value-level guard sync/cosimcheck.sh compares jukutop's typed CPU-bus events against the C emulator (cosim). The default…

Backplane, from the project README
From the project README

Backplane bill of materials (BOM)

13 components, 4 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
SLOT5 CONSOLE
JP_S5
5
39P BUS
J_S1_BUS, J_S2_BUS, J_S3_BUS, J_S4_BUS, J_S5_BUS
5
10P EXT
J_S1_EXT, J_S2_EXT, J_S3_EXT, J_S4_EXT, J_S5_EXT
2
10K
R_M0, R_M1

Backplane design files

The KiCad project lives in the ddanila/8080-cosim repository on GitHub; these links point at the commit this page was built from.

Backplane: common questions

How big is the Backplane PCB?

The Backplane measures 100 × 100 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Backplane?

13 components, from 4 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 Backplane design files?

From the ddanila/8080-cosim repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the Backplane design in my own project?

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

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