HardLabs

Grx930

kubeworkz·grx930·c930/hw/grx930_test_board/grx930_test_board.kicad_pcb

This repository ships a schematic but no board layout.

About the Grx930 PCB

Grx930 is an open source PCB design by kubeworkz, published on GitHub. It is a 4-layer board, with 17 components from 9 distinct parts.

By type, the board carries 8 resistors, 4 diodes, 4 capacitors and 1 switch.

It belongs with the usb & debug tools, power & battery and test & measurement designs in this gallery.

From the project

New RiscV64 Chip Design

Version: 1.0 Date: September 17, 2026 Target Package: QFN-64 (SKY130 die on PCB interposer) Board Size: 100mm × 100mm (4" × 4")

This KiCad project contains the schematic and PCB design for the GRX930 prototype test board. The board provides:

- QFN-64 socket for the packaged GRX930 die - USB-to-UART bridge (FTDI FT2232H) for serial console - JTAG interface for debug and scan-chain access - Multi-rail power supply with sequencing (1.8V core, 3.3V I/O) - Clock generation (100 MHz MEMS oscillator) - Expansion headers for logic analyzer / oscilloscope probing - Status LEDs for visual feedback

Grx930 bill of materials (BOM)

17 components, 9 distinct parts — part numbers from the project's BOM.

QtyPartRefs
1
PTS645SK50SMTR92
RESET
CKT
SW1
1
GREEN
D1
1
RED
D2
1
BLUE
D3
1
YELLOW
D4
3
100nF
Murata
C1, C2, C3
1
10uF
Murata
C49
4
10k
Yageo
R6, R7, R8, R9
4
1k
Yageo
R10, R11, R12, R13

Grx930 design files

The KiCad project lives in the kubeworkz/grx930 repository on GitHub; these links point at the commit this page was built from.

Grx930: common questions

How big is the Grx930 PCB?

The Grx930 has 4 copper layers and is 1.6 mm thick.

How many components are on the Grx930?

17 components, from 9 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 Grx930 design files?

From the kubeworkz/grx930 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 Grx930 design in my own project?

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

Similar boards