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Gd blackplane proto

baldengineer·Mega-IIe·kicad files/gd backplane proto pcb/gd blackplane proto pcb.kicad_pcb

Gd blackplane proto PCB layout, top view — open source board by baldengineer
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About the Gd blackplane proto PCB

Gd blackplane proto is an open source PCB design by baldengineer, published on GitHub under the MIT license. It is a 2-layer board measuring 155.5 × 93 mm, with 33 components from 11 distinct parts.

By type, the board carries 24 connectors, 3 diodes, 3 capacitors and 3 resistors.

From the project

Using the Mega II from a IIgs to make a Apple IIe compatible computer: The Mega IIe!

The Proto PCBs are boards to prototype an IIe from the IIgs ASICs. Eventually, these will be condensed to a single board.

It connects to both the VGC and 6502 boards. The VGC connects with a 40-pin cable, like an IDE cable. The 6502 connects with a couple of ribbon cables.

The VGC also generates the 14 MHz clock from a 28 MHz oscilliator. (It is not clear yet which clocks the MEGA-II generates and which the VGC does.)

Gd blackplane proto bill of materials (BOM)

33 components, 11 distinct parts.

QtyPartRefs
6
Pwr
J1, J5, J6, J12, J17, J22
6
CTRL2
J2, J7, J9, J13, J18, J23
6
Addr_Main_Data
J3, J8, J14, J16, J19, J24
6
CTRL1
J4, J10, J11, J15, J20, J25
1
+12
D1
1
+5
D2
1
-12
D3
1
10uF
C5
1
100nF
C6
1
100uF
C7
3
1k
R1, R2, R3

Gd blackplane proto design files

The KiCad project lives in the baldengineer/Mega-IIe repository on GitHub; these links point at the commit this page was built from.

Gd blackplane proto: common questions

How big is the Gd blackplane proto PCB?

The Gd blackplane proto measures 155.5 × 93 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the Gd blackplane proto?

33 components, from 11 distinct parts. The full bill of materials is listed on this page.

Where can I download the Gd blackplane proto design files?

From the baldengineer/Mega-IIe repository on GitHub, which has the KiCad layout; the links under Design files point to each one.

Can I use the Gd blackplane proto design in my own project?

Yes, under the terms of its MIT license, which baldengineer chose for the repository.

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