HardLabs

TinyFPGA-BX

hbrc-fpga-class·hardware·research/tinyfpga-design-files/TinyFPGA-BX.kicad_pcb

TinyFPGA-BX PCB layout, top view — open source FPGA board by hbrc-fpga-class

About the TinyFPGA-BX PCB

TinyFPGA-BX is an open source FPGA PCB design by hbrc-fpga-class, published on GitHub. It is a 4-layer board measuring 17.8 × 35.6 mm, with 41 components from 22 distinct parts.

Its main chip is the iCE40-LP8K-CM81, from the FPGA family. Other key parts include the MIC5504-3.3YM5-TR, DSC6001CI2A-016.0000T, MIC5365-1.2YC5-TR and AT25SF081-SSHD-B. By type, the board carries 17 capacitors, 10 resistors, 5 ICs, 5 connectors, 2 diodes and 1 switch.

From the project

This repository contains the designs for any physical hardware for the Homebrew Automation PCB.

This repository contains the designs for any physical hardware for the Homebrew Automation PCB.

The Romi chassis needs to have the combined power distribution board and motor controller The Romi PDB/MC's onboard regulator NEEDS TO BE CONFIGURED TO 3.3V OUTPUT OR EVERYTHING WILL BREAK AND YOU WILL BE SAD This is accomplished by cutting the "VREG Select" trace with an exacto knife. Male headers need to be installed into the following locations (add a picture here....) PWMR / DIRR / nSLPR / GND PWML / DIRL / nSLPL / GND ERA / ERB / GND ELA / ELB / GND 3x VSW / 3x GND The custom board should…

Main components on the TinyFPGA-BX

iCE40-LP8K-CM81MIC5504-3.3YM5-TRDSC6001CI2A-016.0000TMIC5365-1.2YC5-TRAT25SF081-SSHD-B

TinyFPGA-BX bill of materials (BOM)

41 components, 22 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
iCE40-LP8K-CM81
U1
1
MIC5504-3.3YM5-TR
U2
1
DSC6001CI2A-016.0000T
U3
1
MIC5365-1.2YC5-TR
U4
1
AT25SF081-SSHD-B
U5
2
CONN_01X14
J1, J2
1
USB_OTG
J3
1
Conn_02x08_Odd_Even
J4
1
Conn_02x03_Odd_Even
J5
1
SW_Push
SW1
2
LED_Small
D1, D2
1
Bead
L1
4
1uF
C1, C2, C3, C4
7
100nF
C5, C7, C8, C9, C10, C11, C16
2
10uF
C6, C17
4
10nF
C12, C13, C14, C15
1
1.5k
R1
2
68
R2, R3
1
100
R4
3
10k
R5, R7, R10
Show 2 more
QtyPartRefs
1
R
R6
2
270
R8, R9

TinyFPGA-BX design files

The KiCad project lives in the hbrc-fpga-class/hardware repository on GitHub; these links point at the commit this page was built from.

TinyFPGA-BX: common questions

What microcontroller does the TinyFPGA-BX use?

The TinyFPGA-BX is built around the iCE40-LP8K-CM81, from the FPGA family.

How big is the TinyFPGA-BX PCB?

The TinyFPGA-BX measures 17.8 × 35.6 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the TinyFPGA-BX?

41 components, from 22 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 TinyFPGA-BX design files?

From the hbrc-fpga-class/hardware repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the TinyFPGA-BX design in my own project?

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

Can I test firmware for the TinyFPGA-BX 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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