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ISA card rev2

TheRetroWeb·PicoPOST·pcb/ISA rev2 with remote/ISA card rev2.kicad_pcb

ISA card rev2 PCB layout, top view — open source RP2040/RP2350 board by TheRetroWeb

About the ISA card rev2 PCB

ISA card rev2 is an open source RP2040/RP2350 PCB design by TheRetroWeb, published on GitHub under the CERN-OHL-P-2.0 license. It is a 2-layer board measuring 81.3 × 87.6 mm, with 28 components from 21 distinct parts.

Its main chip is the Pico, from the RP2040/RP2350 family. Other key parts include the 74LVC02 and 74LVC245. By type, the board carries 13 resistors, 5 ICs, 5 connectors, 3 switches and 2 diodes.

It belongs with the displays & leds designs in this gallery, and the repository also holds 1 earlier revision of it.

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.

ISA card rev2, from the project README
From the project README

Main components on the ISA card rev2

74LVC0274LVC245Pico

ISA card rev2 bill of materials (BOM)

28 components, 21 distinct parts.

QtyPartRefs
1
74LVC02
U1
3
74LVC245
U2, U3, U4
1
Pico
U5
1
PCB_Finger_ISA_8bit
J1
1
OLED Header
J2
1
remote header
J3
1
OLED here
J4
1
Button Header
J5
1
Up
SW1
1
Down
SW2
1
Select/Menu
SW3
1
green
D1
1
red
D4
6
1000
R1, R5, R6, R7, R8, R13
1
33k
R2
1
330
R3
1
68k
R4
1
12k
R9
1
56k
R10
1
47k
R11
Show 1 more
QtyPartRefs
1
18k
R12

ISA card rev2 design files

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

ISA card rev2: common questions

What microcontroller does the ISA card rev2 use?

The ISA card rev2 is built around the Pico, from the RP2040/RP2350 family.

How big is the ISA card rev2 PCB?

The ISA card rev2 measures 81.3 × 87.6 mm, has 2 copper layers and is 1.6 mm thick.

How many components are on the ISA card rev2?

28 components, from 21 distinct parts. The full bill of materials is listed on this page.

Where can I download the ISA card rev2 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 ISA card rev2 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 ISA card rev2 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.

More boards in PicoPOST

Earlier revisions in the repo: ISA card rev1

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