HardLabs

ICEBreaker

frohro·icebreaker·hardware/v1.0d/icebreaker.kicad_pcb

ICEBreaker PCB layout, top view — open source FPGA board by frohro

About the ICEBreaker PCB

ICEBreaker is an open source FPGA PCB design by frohro, published on GitHub. It is a 4-layer board measuring 73 × 37 mm, with 133 components from 49 distinct parts.

Its main chip is the ICE5LP4K-SG48, from the FPGA family. Other key parts include the 93C46B-SOT-23-6, 3.3V, 1V2, FT2232H and W25Q. By type, the board carries 40 connectors, 39 capacitors, 29 resistors, 11 diodes, 7 ICs and 4 switches.

It belongs with the dev boards & breakouts and usb & debug tools designs in this gallery.

From the project

Icebreaker

This repository is to update the Bitsy 1.1c so it has JLCPCB part numbers and can be ordered.

The iCEBreaker FPGA board is a low cost, open-source educational FPGA development board.

The main motivating application of this board is for classes and workshops teaching the use of the open source FPGA design flow using Yosys, nextpnr, icestorm, iverilog, symbiflow and others. This means the board has to be low cost and have a nice set of features to allow for the design of interesting classes and workshop exercises. At the same time we want to allow the user to use the proprietary vendor tools…

ICEBreaker, from the project README
From the project README

Main components on the ICEBreaker

93C46B-SOT-23-63.3V1V2FT2232HW25QICE5LP4K-SG4812MHz

ICEBreaker bill of materials (BOM)

133 components, 49 distinct parts.

QtyPartRefs
1
93C46B-SOT-23-6
U1
1
3.3V
U2
1
1V2
U3
1
FT2232H
U4
1
W25Q
U5
1
ICE5LP4K-SG48
U6
1
12MHz
U7
1
BSS138
Q1
6
Jumper
J1, J2, J15, J16, J18, J29
11
Jumper
J3, J4, J5, J6, J7, J8, J9, J10 +3
2
Jumper
J14, J19
2
Jumper
J17, J30
1
Flash
J20
2
PMOD
J21, J22
1
PMOD
J23
1
PMOD
J24
1
RGB Led
J25
2
5V AUX
J26, J27
1
CRESET
J28
2
RGB Led
J31, J33
Show 29 more
QtyPartRefs
1
WS2812
J32
1
SADD
J34
1
pkl_USB_OTG
P1
4
UP
P2, P3, P4, P5
1
RAM_CS
P6
4
TACT
SW1, SW2, SW3, SW4
6
GRN
D1, D4, D6, D7, D9, D10
1
~800mVf
D2
1
BLU
D3
2
RED
D5, D8
1
LED_RGB
Cree
D11
2
600
L1, L2
20
100n
C1, C4, C10, C12, C13, C14, C16, C17 +12
7
4u7
C2, C5, C6, C7, C8, C9, C15
4
10n
C3, C11, C28, C38
3
1u
C23, C36, C39
1
10u
C24
3
DNP
C32, C33, C34
1
DNP
C35
1
1M
R1
3
10k
R2, R11, R16
5
10k
R3, R9, R13, R19, R25
6
33E
R4, R20, R21, R22, R23, R24
4
330E
R5, R14, R15, R18
3
2k2
R6, R12, R26
4
10k
R7, R27, R28, R29
1
12k
R8
1
100E
R10
1
330E
R17

ICEBreaker design files

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

ICEBreaker: common questions

What microcontroller does the ICEBreaker use?

The ICEBreaker is built around the ICE5LP4K-SG48, from the FPGA family.

How big is the ICEBreaker PCB?

The ICEBreaker measures 73 × 37 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the ICEBreaker?

133 components, from 49 distinct parts. The full bill of materials is listed on this page.

Where can I download the ICEBreaker design files?

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

Can I use the ICEBreaker design in my own project?

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

Can I test firmware for the ICEBreaker 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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