HardLabs

Pro rev1

TheRetroWeb·PicoPOST·pcb/Pro rev1/Pro rev1.kicad_pcb

Pro rev1 PCB layout, top view — open source RP2040/RP2350 board by TheRetroWeb

About the Pro rev1 PCB

Pro rev1 is an open source RP2040/RP2350 PCB design by TheRetroWeb, published on GitHub under the CERN-OHL-P-2.0 license. It is a 4-layer board measuring 102.6 × 107.3 mm, with 130 components from 55 distinct parts.

Its main chip is the RP2350B-QFN80, from the RP2040/RP2350 family. Other key parts include the 74LVC245, MCP6002-T/SN, 74LVC02, W25Q32JVSS and AP63203WU. By type, the board carries 51 capacitors, 41 resistors, 14 ICs, 8 connectors, 7 diodes and 4 switches.

It belongs with the displays & leds designs in this gallery.

From the project

RPi Pico based POST (Power-On Self Test) Diagnostic Card

PicoPOST is a PC diagnostic card for systems with, at least, an 8-bit ISA slot. It's based around the Raspberry Pi Pico, powered by an RP2040.

PicoPOST is designed to provide many additional benefits over the basic POST cards that are commonly available from Chinese vendors on eBay and other sites.

This project is getting ready for public usage, with a few prototypes already in use for development purposes. More information soon as it gets finalized.

Pro rev1, from the project README
From the project README

Main components on the Pro rev1

RP2350B-QFN8074LVC245MCP6002-T/SN74LVC02W25Q32JVSSAP63203WU24LC01RP2040LAN8720A

Pro rev1 bill of materials (BOM)

130 components, 55 distinct parts.

QtyPartRefs
1
RP2350B-QFN80
U1
4
74LVC245
U2, U3, U5, U8
1
MCP6002-T/SN
U4
2
74LVC02
U6, U7
2
W25Q32JVSS
U9, U11
1
AP63203WU
U10
1
24LC01
U12
1
RP2040
U13
1
LAN8720A
U14
2
12MHz
Y1, Y2
1
PCB_Finger_ISA_8bit
J1
1
USB C
J2
1
USB Select
J3
1
Remote SATA Connector
J4
1
MicroSD
J5
1
2350 SWD
J6
1
2040 SWD
J7
1
RJ45_Hanrun_HR911105A_Horizontal
J8
1
P2_BS
SW1
1
P1_BS
SW2
Show 35 more
QtyPartRefs
1
2350 Reset
SW3
1
2040 Reset
SW4
1
2350 Status
D1
4
BAT54S
D2, D3, D4, D5
1
ISA Reset
D8
1
2040 Status
D9
1
FerriteBead
FB1
1
3.3uH
L1
1
3.9uH
L2
3
4.7uF
C1, C2, C4
4
15pF
C3, C5, C31, C32
7
4.7uF
C6, C10, C22, C27, C34, C46, C47
32
100nF
C7, C8, C9, C11, C12, C13, C14, C15 +24
1
10uF
C24
2
22uF
C28, C30
1
1uF
C33
1
470pF
C35
2
33R
R1, R34
5
470
R2, R18, R27, R38, R39
2
1K
R3, R28
2
200R
R4, R35
1
39k
R5
4
47k
R6, R7, R11, R15
1
12k
R8
1
100k
R9
1
330k
R10
1
68k
R12
6
1k
R13, R14, R19, R20, R21, R22
1
10k
R16
2
22R
R23, R24
2
5k1
R25, R26
4
10R
R29, R30, R31, R32
1
1.5K
R33
1
12.1k
R36
4
49.9
R37, R40, R41, R42

Pro rev1 design files

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

Pro rev1: common questions

What microcontroller does the Pro rev1 use?

The Pro rev1 is built around the RP2350B-QFN80, from the RP2040/RP2350 family.

How big is the Pro rev1 PCB?

The Pro rev1 measures 102.6 × 107.3 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the Pro rev1?

130 components, from 55 distinct parts. The full bill of materials is listed on this page.

Where can I download the Pro rev1 design files?

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

Can I use the Pro rev1 design in my own project?

Yes, under the terms of its CERN-OHL-P-2.0 license, which TheRetroWeb chose for the repository.

Can I test firmware for the Pro rev1 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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