HardLabs

ElectronULA

adbsolutions·ElectronULA·Kicad/ElectronULA - MAX 10 Board V1.05/ElectronULA.kicad_pcb

ElectronULA PCB layout, top view — open source FPGA board by adbsolutions

About the ElectronULA PCB

ElectronULA is an open source FPGA PCB design by adbsolutions, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 49 × 68.4 mm, with 88 components from 23 distinct parts.

Its main chip is the 10M08SCE144C8G, from the FPGA family. Other key parts include the 74HCT125D, 74LVC4245APW, AP2114H-3.3TRG1 and ELECTRON_ULA_PGA_68. By type, the board carries 39 resistors, 31 capacitors, 10 ICs, 2 connectors, 2 diodes and 1 crystal.

From the project

Project to create replacement ULA board for Acorn Electron

The Core Carrier board is a board which requires the "EEpizza" board to be fitted. This is a board which actually contains the FPGA. The MAX 10 Board is a complete board with everything required to replace the Acorn Electron ULA on a single board.

V1.05 is the latest board design including a Micro SD Card socket and enables the use of MMFS for people without the extra Plus 1 hardware. Ensure the DIP switches are set correctly if connecting a Plus 1

Main components on the ElectronULA

10M08SCE144C8G74HCT125D74LVC4245APWAP2114H-3.3TRG1ELECTRON_ULA_PGA_68

ElectronULA bill of materials (BOM)

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

QtyPartRefs
1
10M08SCE144C8G
U1
1
74HCT125D
SN74HCT125D
U2
6
74LVC4245APW
U3, U4, U5, U6, U7, U8
1
AP2114H-3.3TRG1
AP111733
U9
1
ELECTRON_ULA_PGA_68
U10
1
OSC
X1
1
CONN_01X02
Conn_01x02
J1
1
Micro_SD_Card_Det_Hirose_DM3AT
J2
1
MIC7221YM5
MIC7221YM5-TR
CMP1
1
CONN_02X05_ODD_EVEN
Conn_02x05_Odd_Even
JTAG1
1
SW_DIP_X04
SW_DIP_x04
SW1
2
D_Schottky_Small
D1, D2
26
0.1uf
C1, C2, C3, C4, C5, C6, C7, C8 +18
3
0.1uf
C20, C25, C29
1
10uF
C27
1
0.1uf
C31
19
10K
R1, R2, R3, R4, R5, R6, R7, R8 +11
5
10K
R9, R14, R15, R16, R18
1
4.7K
R19
4
4.7K
R20, R21, R22, R23
Show 3 more
QtyPartRefs
1
100
R25
1
10K
R31
8
300
R32, R33, R34, R35, R36, R37, R38, R39

ElectronULA design files

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

ElectronULA: common questions

What microcontroller does the ElectronULA use?

The ElectronULA is built around the 10M08SCE144C8G, from the FPGA family.

How big is the ElectronULA PCB?

The ElectronULA measures 49 × 68.4 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the ElectronULA?

88 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 ElectronULA design files?

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

Can I use the ElectronULA design in my own project?

Yes, under the terms of its GPL-3.0 license, which adbsolutions chose for the repository.

Can I test firmware for the ElectronULA without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug FPGA firmware against it before you order a PCB.

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