HardLabs

A3000 rom emulator

ep-infosec·50_google_myelin-acorn-electron-hardware·a3000_rom_emulator/pcb/a3000_rom_emulator.kicad_pcb

A3000 rom emulator PCB layout, top view — open source board by ep-infosec

About the A3000 rom emulator PCB

A3000 rom emulator is an open source PCB design by ep-infosec, published on GitHub under the Apache-2.0 license. It is a 4-layer board measuring 43.2 × 78.7 mm, with 98 components from 23 distinct parts.

Other key parts include the rom_A19. By type, the board carries 7 capacitors, 6 resistors, 2 diodes, 1 module and 1 transformer.

From the project

A board that plugs into all Acorn Archimedes, A3000, A5000 (with adapter), and Risc PC (with adapter) machines, allowing OS updates without opening the machine -- or even powering it down!

A board that plugs into all Acorn Archimedes, A3000, A5000 (with adapter), and Risc PC (with adapter) machines, allowing OS updates without opening the machine -- or even powering it down!

For IC sockets, cut two 40-pin headers to make:

- one 2x16-pin header and one 2x4-pin headers - four 5+4-pin headers and two 2-pin headers

A3000 rom emulator, from the project README
From the project README

Main components on the A3000 rom emulator

rom_A19

A3000 rom emulator bill of materials (BOM)

98 components, 23 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
rom_A19
A21
1
Addresses
AEXT2
8
100n
CC0, CC1, FC0, FC1, FC2, FC3, FC4, FC5
8
100n
CC2, CC3, CC4, CC5, CC6, CC7, CC8, CC9
2
S29GL064S70DHI010
FLASH0, FLASH1
1
ROM header
ROM1
3
ROM header
ROM2, ROM3, ROM4
4
Pack of 8 x isolated 68R resistors
RP1, RP2, RP3, RP4
1
swd
SWD2
1
rom_5V
T1
8
—
mech_pin1, mech_pin2, mech_pin3, mech_pin4, mech_pin5, mech_pin6, mech_pin7, mech_pin8
45
—
staple_single1, staple_single2, staple_single3, staple_single4, staple_single5, staple_single6, staple_single7, staple_single8 +37
1
S1ATR
D1
1
C152458
S1ATR NF
D2
1
C28323
10u
C1
2
1u
C6, C7
3
C49678
100n
C10, C11, C13
1
C49678
1u
C12
1
C17414
10k
R1
1
C17513
1k
R2
Show 3 more
QtyPartRefs
1
C17630
100R
R3
1
C17520
10k
R6
2
C17513
10k
R7, R8

A3000 rom emulator design files

The KiCad project lives in the ep-infosec/50_google_myelin-acorn-electron-hardware repository on GitHub; these links point at the commit this page was built from.

A3000 rom emulator: common questions

How big is the A3000 rom emulator PCB?

The A3000 rom emulator measures 43.2 × 78.7 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the A3000 rom emulator?

98 components, from 23 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 A3000 rom emulator design files?

From the ep-infosec/50_google_myelin-acorn-electron-hardware repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the A3000 rom emulator design in my own project?

Yes, under the terms of its Apache-2.0 license, which ep-infosec chose for the repository.

More boards in 50_google_myelin-acorn-electron-hardware