Ice4pi
About the Ice4pi PCB
Ice4pi is an open source FPGA PCB design by lightside-instruments, published on GitHub under the TAPR-OHL-1.0 license. It is a 4-layer board measuring 65 × 30 mm, with 52 components from 17 distinct parts.
Its main chip is the ICE40HX1K-TQ144, from the FPGA family. Other key parts include the W25Q32JVSNIQ, MIC5504-1.2YM5 and DSC1001DI1-012.0000. By type, the board carries 28 capacitors, 12 resistors, 6 diodes, 4 ICs and 2 connectors.
It belongs with the dev boards & breakouts designs in this gallery.
From the project
KiCAD project of a Pi Hat with ice40hx1k FPGA
ice4pi is an open hardware platform for FPGA development published by Lightside Instruments AS.
The initial release ice4pi-1.0 includes schematic and PCB design files for KiCAD.
The project is published by Lightside Instruments AS under TAPR Open Hardware License. Read the LICENSE file for details.
Main components on the Ice4pi
Ice4pi bill of materials (BOM)
52 components, 17 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | ICE40HX1K-TQ144 | TQFP-144_20x20mm_P0.5mm | U1 |
| 1 | W25Q32JVSNIQ W25Q32JVSSIQ | SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | MIC5504-1.2YM5 | SOT-23-5 | U3 |
| 1 | DSC1001DI1-012.0000 | Oscillator_SMD_Abracon_ASDMB-4Pin_2.5x2.0mm | U4 |
| 1 | SSW-106-01-T-D Pmod 2x6 | PinSocket_2x06_P2.54mm_Vertical_1to6_7to12 | J1 |
| 1 | SSQ-120-03-T-D raspberry_pi_2_3_4_ordered | PinSocket_2x20_P2.54mm_Vertical_1_04mm | J2 |
| 4 | SML-LX0603GW-TR LED | LED_0402_1005Metric | D1, D2, D3, D4 |
| 1 | SML-LX0603IW-TR LED | LED_0402_1005Metric | D5 |
| 1 | CDBU0520 | D_0603_1608Metric | D6 |
| 5 | ZRB15XR61A106ME01D 10uF | C_0402_1005Metric | C1, C4, C16, C20, C30 |
| 13 | 885012205037 0.1uF | C_0402_1005Metric | C2, C3, C9, C12, C14, C18, C19, C21 +5 |
| 7 | 885012205012 0.01uF | C_0402_1005Metric | C6, C10, C11, C13, C15, C27, C29 |
| 1 | C1005X5R0J475M050BC 4.7uF | C_0402_1005Metric | C8 |
| 2 | 885012105012 1 uF | C_0402_1005Metric | C17, C22 |
| 6 | ERJ-2GEJ103X 10K | R_0402_1005Metric | R2, R15, R16, R17, R18, R19 |
| 5 | ERJ-2GEJ102X 1K | R_0402_1005Metric | R10, R11, R12, R13, R14 |
| 1 | ERJ-2GEJ101X 100 | R_0402_1005Metric | R20 |
Ice4pi design files
The KiCad project lives in the lightside-instruments/ice4pi repository on GitHub; these links point at the commit this page was built from.
- Layoutice4pi.kicad_pcb
- Schematicice4pi.kicad_sch
- BOMbom.csv
Ice4pi: common questions
What microcontroller does the Ice4pi use?
The Ice4pi is built around the ICE40HX1K-TQ144, from the FPGA family.
How big is the Ice4pi PCB?
The Ice4pi measures 65 × 30 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Ice4pi?
52 components, from 17 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 Ice4pi design files?
From the lightside-instruments/ice4pi 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 Ice4pi design in my own project?
Yes, under the terms of its TAPR-OHL-1.0 license, which lightside-instruments chose for the repository.
Can I test firmware for the Ice4pi 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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