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Floopy Drive

partlyhuman·floopydrive·pcb/flash-32mbit/flash-32mbit.kicad_pcb

Floopy Drive PCB layout, top view — open source RP2040/RP2350 board by partlyhuman

About the Floopy Drive PCB

Floopy Drive is an open source RP2040/RP2350 PCB design by partlyhuman, published on GitHub under the MIT license. It is a 2-layer board measuring 96.3 × 76.3 mm, with 31 components from 16 distinct parts.

Its main chip is the RP2040-TINY, from the RP2040/RP2350 family. Other key parts include the LH28F320SKTD-L70, AS6C1008-55SIN, SN74LVC1G04 and MCP23S17T-E/SO. By type, the board carries 13 resistors, 7 ICs, 6 capacitors, 3 diodes, 1 connector and 1 battery holder.

From the project

The Floopy Drive, an open-source flashcart for Casio Loopy

flash-32mbit — the Floopy Drive, with 32Mbit tri-voltage flash, and 256kbit SRAM cart-connector — cart connector, footprint and symbol, for use in dumpers etc. reverse-singlerom — this is the AN1M cart design that we first reverse engineered reverse-wanwan — expanding upon that to try to document wanwan, schematic only so far

Some earlier revisions and experiments are in git history.

Main components on the Floopy Drive

LH28F320SKTD-L70AS6C1008-55SINSN74LVC1G04RP2040-TINYMCP23S17T-E/SO

Floopy Drive bill of materials (BOM)

31 components, 16 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
LH28F320SKTD-L70
U1
1
AS6C1008-55SIN
U2
1
SN74LVC1G04
U3
1
RP2040-TINY
RP2040-Tiny
U4
3
MCP23S17T-E/SO
MCP23S17T-E/SS
U5, U6, U7
1
~
J1
1
CR2032
BT1
1
BAT54C
D1
1
PMEG4005CT,215
D2
1
BSS138
D3
1
1u
C1
5
0.1U
0.1u
C2, C4, C5, C6, C7
5
1K
R1, R2, R6, R9, R13
6
100K
R3, R4, R5, R8, R11, R14
1
2K2
R10
1
10K
R12

Floopy Drive design files

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

Floopy Drive: common questions

What microcontroller does the Floopy Drive use?

The Floopy Drive is built around the RP2040-TINY, from the RP2040/RP2350 family.

How big is the Floopy Drive PCB?

The Floopy Drive measures 96.3 × 76.3 mm, has 2 copper layers and is 1.2 mm thick.

How many components are on the Floopy Drive?

31 components, from 16 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 Floopy Drive design files?

From the partlyhuman/floopydrive 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 Floopy Drive design in my own project?

Yes, under the terms of its MIT license, which partlyhuman chose for the repository.

Can I test firmware for the Floopy Drive without the hardware?

Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug RP2040/RP2350 firmware against it before you order a PCB.

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