HardLabs

P8x bustest card

ksr·p8x·hardware/bustest-card/kicad/p8x-bustest-card.kicad_pcb

P8x bustest card PCB layout, top view — open source RP2040/RP2350 board by ksr

About the P8x bustest card PCB

P8x bustest card is an open source RP2040/RP2350 PCB design by ksr, published on GitHub. It is a 4-layer board measuring 280 × 140 mm, with 41 components from 28 distinct parts.

Its main chip is the RP2040, from the RP2040/RP2350 family. Other key parts include the MCP23S17 and 74HCT244. By type, the board carries 16 LEDs, 7 ICs, 7 capacitors, 7 resistors, 2 connectors and 1 module.

From the project

Generated by generators/genkicad.py from the canonical geneagle netlist (CARDS["bustest-card"]), same standard as the memory card: 4-layer (F/B signals, In1=GND, In2=VCC planes), a bypass cap above each IC, a labelled LED/jumper bank, part values on silk. Routed with Freerouting.

Generated by generators/genkicad.py from the canonical geneagle netlist (CARDS["bustest-card"]), same standard as the memory card: 4-layer (F/B signals, In1=GND, In2=VCC planes), a bypass cap above each IC, a labelled LED/jumper bank, part values on silk. Routed with Freerouting. GENERATORS ARE CANON -- edit genkicad.py and re-run generators/buildkicadcard.sh bustest-card`.

Main components on the P8x bustest card

MCP23S1774HCT244RP2040

P8x bustest card bill of materials (BOM)

41 components, 28 distinct parts — part numbers from the project's BOM.

QtyPartRefs
5
MCP23S17
U1, U2, U3, U4, U5
2
74HCT244
U6, U7
1
RP2040
A1
1
MABC96R
J1
1
PROBE
J2
1
PRB0
LED1
1
PRB1
LED2
1
PRB2
LED3
1
PRB3
LED4
1
PRB4
LED5
1
PRB5
LED6
1
PRB6
LED7
1
PRB7
LED8
1
5V
LED9
1
ARM
LED10
1
LIS
LED11
1
CLK
LED12
1
CKB
LED13
1
RES
LED14
1
ERR
LED15
Show 8 more
QtyPartRefs
1
USB
LED16
1
SCHOTTKY
D1
7
100nF
C1, C2, C3, C4, C5, C6, C7
2
10K
R5, R6
1
1K8
R7
1
3K3
R8
2
8x330R
RN1, RN2
1
8x1K
RN3

P8x bustest card design files

The KiCad project lives in the ksr/p8x repository on GitHub; these links point at the commit this page was built from.

P8x bustest card: common questions

What microcontroller does the P8x bustest card use?

The P8x bustest card is built around the RP2040, from the RP2040/RP2350 family.

How big is the P8x bustest card PCB?

The P8x bustest card measures 280 × 140 mm, has 4 copper layers and is 1.6 mm thick.

How many components are on the P8x bustest card?

41 components, from 28 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 P8x bustest card design files?

From the ksr/p8x repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.

Can I use the P8x bustest card design in my own project?

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

Can I test firmware for the P8x bustest card 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 p8x

Similar boards