A3000 rom emulator
About the A3000 rom emulator PCB
A3000 rom emulator is an open source PCB design by myelin, 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 20 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
Note from my employer ---------------------
Main components on the A3000 rom emulator
A3000 rom emulator bill of materials (BOM)
98 components, 20 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | rom_A19 | PinHeader_1x01_P2.54mm_Vertical | A21 |
| 1 | Addresses | PinHeader_1x04_P2.54mm_Vertical | AEXT2 |
| 8 | 100n | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | CC0, CC1, FC0, FC1, FC2, FC3, FC4, FC5 |
| 8 | 100n | C_0402_1005Metric | CC2, CC3, CC4, CC5, CC6, CC7, CC8, CC9 |
| 2 | S29GL064S70DHI010 | cypress_lae064_fbga | FLASH0, FLASH1 |
| 1 | ROM header | dip32_rom | ROM1 |
| 3 | ROM header | dip32_rom_data_only | ROM2, ROM3, ROM4 |
| 4 | Pack of 8 x isolated 68R resistors | R_Array_Convex_8x0602 | RP1, RP2, RP3, RP4 |
| 1 | swd | PinHeader_2x04_P2.54mm_Vertical | SWD2 |
| 1 | rom_5V | PinHeader_1x01_P2.54mm_Vertical | T1 |
| 8 | — | dip_rom_single_pin | mech_pin1, mech_pin2, mech_pin3, mech_pin4, mech_pin5, mech_pin6, mech_pin7, mech_pin8 |
| 45 | — | via_single | staple_single1, staple_single2, staple_single3, staple_single4, staple_single5, staple_single6, staple_single7, staple_single8 +37 |
| 1 | S1ATR | D_SMA | D1 |
| 1 | S1ATR NF | D_SMA | D2 |
| 1 | 10u | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C1 |
| 3 | 1u | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C6, C7, C12 |
| 3 | 100n | C_0805_2012Metric_Pad1.15x1.40mm_HandSolder | C10, C11, C13 |
| 4 | 10k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R1, R6, R7, R8 |
| 1 | 1k | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R2 |
| 1 | 100R | R_0805_2012Metric_Pad1.15x1.40mm_HandSolder | R3 |
A3000 rom emulator design files
The KiCad project lives in the myelin/arcflash 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 20 distinct parts. The full bill of materials is listed on this page.
Where can I download the A3000 rom emulator design files?
From the myelin/arcflash repository on GitHub, which has the KiCad layout; 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 myelin chose for the repository.
