HardLabs

Eurorack-DIGI

cookiemonsternz·Eurorack-DIGI·hardware/digi/digi.kicad_pcb

Eurorack-DIGI PCB layout, top view — open source FPGA board by cookiemonsternz

About the Eurorack-DIGI PCB

Eurorack-DIGI is an open source FPGA PCB design by cookiemonsternz, published on GitHub. It is a 6-layer board measuring 40 × 100 mm, with 127 components from 52 distinct parts.

Its main chip is the ICE40UP5K-SG48ITR, from the FPGA family. Other key parts include the ES8311, APS6404L-SQN-SN, FT4222HQ, TL072 and AMS1117-3.3. By type, the board carries 57 capacitors, 30 resistors, 13 diodes, 9 ICs, 7 connectors and 4 switches.

It belongs with the audio designs in this gallery.

From the project

DIGI utilises an ice40UP5K fpga chip, featuring 5280 luts and a 48Mhz clock. This is accompanied by a USB-SPI interface for easy programming. The board includes 64Mbits of PSRAM via single channel SPI and 256kbits of flash EEPROM.

DIGI utilises an ice40UP5K fpga chip, featuring 5280 luts and a 48Mhz clock. This is accompanied by a USB-SPI interface for easy programming. The board includes 64Mbits of PSRAM via single channel SPI and 256kbits of flash EEPROM.

This does kind of act as a counterpart to REV, but with an FPGA as to an MCU. This provides a bit more flexibility (and performance) and also provides a lot more memory to play with.

Eurorack-DIGI, from the project README
From the project README

Main components on the Eurorack-DIGI

ES8311APS6404L-SQN-SNICE40UP5K-SG48ITRFT4222HQTL072AMS1117-3.3XL1509-ADJAT24C256C-SSHL-T

Eurorack-DIGI bill of materials (BOM)

127 components, 52 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
ES8311
IC1
1
APS6404L-SQN-SN
IC2
1
ICE40UP5K-SG48ITR
U1
1
FT4222HQ
U2
1
TL072
U3
1
AMS1117-3.3
U4
2
XL1509-ADJ
U5, U6
1
AT24C256C-SSHL-T
U7
1
12MHz - X322512MSB4SI
Y1
1
USB_B_Micro
J1
1
IN
J2
1
OUT
J3
1
Bank 2
J4
1
Bank 0
J5
1
Bank 1
J6
1
Conn_02x08_Odd_Even
J10
1
RESET_J
JP1
1
DONE_J
JP2
1
RESET_SW
SW1
3
SW_SPDT
SW4, SW5, SW6
Show 32 more
QtyPartRefs
1
1N4148
D1
1
LED
D2
4
1N5819
D3, D4, D5, D17
4
NeoPixel_THT
D6, D7, D8, D12
1
LED_R
D9
1
LED_G
D10
1
LED_B
D11
1
600R/1A
L1
1
180r-100M
L2
2
47uH
L3, L4
21
100n
C1, C4, C6, C8, C11, C14, C19, C21 +13
2
10u
C2, C40
12
1u
C3, C7, C10, C13, C26, C27, C28, C29 +4
4
10n
C5, C9, C12, C15
2
20p
C16, C17
6
4.7u
C18, C20, C22, C24, C35, C61
1
22u
C41
5
47u
C44, C46, C51, C52, C53
2
470u
C45, C48
2
10u
C49, C50
4
100
R1, R28, R29, R30
6
0
R2, R3, R4, R5, R6, R23
8
10k
R7, R15, R16, R17, R18, R19, R20, R21
2
2.2k
R8, R22
2
1M
R9, R13
1
12k
R10
1
100k
R11
1
39k
R12
1
DNP
R14
1
470
R24
2
1k
R25, R26
1
10
R27

Eurorack-DIGI design files

The KiCad project lives in the cookiemonsternz/Eurorack-DIGI repository on GitHub; these links point at the commit this page was built from.

Eurorack-DIGI: common questions

What microcontroller does the Eurorack-DIGI use?

The Eurorack-DIGI is built around the ICE40UP5K-SG48ITR, from the FPGA family.

How big is the Eurorack-DIGI PCB?

The Eurorack-DIGI measures 40 × 100 mm, has 6 copper layers and is 1.599978 mm thick.

How many components are on the Eurorack-DIGI?

127 components, from 52 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 Eurorack-DIGI design files?

From the cookiemonsternz/Eurorack-DIGI 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 Eurorack-DIGI design in my own project?

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

Can I test firmware for the Eurorack-DIGI 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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