6 layers36.8 × 16.4 mm
Integrated Debugger
PicoballoonLabs/Debug-Boards
Hardware designs for the integrated debug probe, debug adapter, flex debug cables and RF VNA calibrator
72 parts1MIT
2 layers20 × 38.1 mm
Debug Adapter
PicoballoonLabs/Debug-Boards1Hardware designs for the integrated debug probe, debug adapter, flex debug cables and RF VNA calibrator
- Size
- 20 × 38.1 mm
- Copper layers
- 2
- Thickness
- 0.92 mm
- Parts
- 34
- Nets
- 38
- Pads
- 192
- Tracks, vias
- 194, 54
- Pours
- 154
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 9 Oct 2026
- Updated
- 9 Oct 2026
Overview
Debug Adapter is an open-source printed circuit board by PicoballoonLabs, from the PicoballoonLabs/Debug-Boards repository on GitHub, published under the MIT licence. It is a 2-layer board of 20 × 38.1 mm with 34 parts on 38 nets, routed with 194 tracks and 54 vias.
It is built around the CP2102N-A02-GQFN24R, TPS22914BYFPR and ERJ1GNF1002C, with the RC0201FR-075K1L, ERJ1GNF1001C and 20021521-00010T1LF among its other parts. Its parts include 11 capacitors, 9 resistors, 5 ICs, 5 connectors and 2 diodes. It belongs with the interfaces and adapters and radio and wireless boards of this library.
Main components
12
CP2102N-A02-GQFN24R
QFN-24-EP(4x4)-40℃~+85℃@(Ta) 1.3uA 3V~3.6V 9.5mA USB 2.0 USB to UART QFN-24-EP(4x4) USB Converters ROHSSilicon LabsUSB Converters
TPS22914BYFPR
DSBGA-4-40℃~+85℃ 1 1.05V~5.5V 2A 37mΩ Active High Load Switch DSBGA-4 Power Distribution Switches ROHSTexas InstrumentsPower Distribution Switches
ERJ1GNF1002C
0201-55℃~+125℃ 10kΩ 50mW Thick Film Resistor ±1% ±200ppm/℃ 0201 Chip Resistor - Surface Mount ROHSPanasonicChip Resistor - Surface MountRC0201FR-075K1L
0201-55℃~+125℃ 25V 5.1kΩ 50mW Thick Film Resistor ±1% ±200ppm/℃ 0201 Chip Resistor - Surface Mount ROHSYAGEOChip Resistor - Surface MountERJ1GNF1001C
0201-55℃~+125℃ 1kΩ 50mW Thick Film Resistor ±1% ±200ppm/℃ 0201 Chip Resistor - Surface Mount ROHSPanasonicChip Resistor - Surface Mount
20021521-00010T1LF
SMD,P=1.27mm1.27mm 10P 2 Copper alloy Surface Mount,Vertical SMD,P=1.27mm Board-to-Board and Backplane Connector ROHSAmphenolBoard-To-Board And Backplane ConnectorERJ1GNF3300C
0201-55℃~+125℃ 330Ω 50mW Thick Film Resistor ±1% ±200ppm/℃ 0201 Chip Resistor - Surface Mount ROHSPanasonicChip Resistor - Surface Mount
EM-02KP
SMD,P=2.54mm-20℃~+70℃ 2 2.54mm 24V 25mA 3,000 Cycles Black SPST Slide, Rocked SMD,P=2.54mm DIP Switches ROHSHRO ElectronicsDIP Switches
FPC-05F-10PH20
SMD,P=0.5mm,卧贴-25℃~+85℃ 0.3mm 0.5mm 10P 2mm 500mA 50V Bottom Contact Hinged Lid Phosphor bronze Surface Mount, Right Angle Tin SMD,P=0.5mm,卧贴 FFC, FPC (Flat Flexible) Connector Assemblies ROHSXUNPUFFC, FPC (Flat Flexible) Connector Assemblies
XL-1608SURC-06
0603-40℃~+85℃ 120° 2.3V 20mA 225mcd 50mW 620nm~630nm 625nm Discrete Diode Red Top-mount Water Clear 0603 LED Indication - Discrete ROHSXINGLIGHTLED Indication - DiscreteGT-TC029B-H025-L1N
SMD,4x3mm-40℃~+85℃ 100,000 Cycles 12V 2.5N 2.5mm 3mm 4mm 50mA Black No Round Button SMD(SMT) Tab SPST Surface Mount,Vertical Without Bracket SMD,4x3mm Tactile Switches ROHSG-SwitchTactile Switches
TYPE-C-31-M-12
SMD-30℃~+80℃ 1 10,000 cycles 16P 20V 5A 7.35mm Female Surface Mount, Right Angle Type-C SMD USB Connectors ROHSHRO ElectronicsUSB Connectors
README
README.mdDebug-Boards
This repository contains the hardware designs for our integrated debug probe, debug adapter, flex debug cables and RF calibration board.
📦 Contents
This repository includes designs for:
- Flex debug cable: Flexible flat cable that connects a debugger to the low-profile debug connector on the target board.
- Debug Adapter: SWD debug adapter board that breaks the target debug connector out to a standard debug host, with its own target power supply.
- Integrated Debugger: Integrated debug probe for flashing and debugging target hardware over SWD, with a UART bridge and switchable target power. It is hardware compatible with the Black Magic Debug firmware.
- RF VNA calibrator: Calibration board for vector network analyzer (VNA) RF measurements.
Each subdirectory is a standalone KiCad project with its schematics and PCB layout, and a production folder with the manufacturing files (gerbers, BOM, pick-and-place positions) of the released revisions.
The projects use the symbol, footprint and 3D model libraries from Hardware-Resources.
🔌 Integrated Debugger firmware
No firmware is distributed in this repository. The Integrated Debugger runs the upstream Black Magic Debug firmware (GPLv3), which can be installed and updated with bmputil.
The hardware designs in this repository are original work, released under the MIT Licence (see LICENSE). They are compatible with Black Magic Debug firmware but are not derived from it.
📄 Licence
The hardware designs in this repository are released under the MIT Licence, see LICENSE.
Parts
34| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 100nF | Picoballoon Passives:Capacitor 0201 | C2, C3, C4, C5, C7, C8, C10, C11 |
| 4 | 10kΩ | Picoballoon Passives:Resistor 0201 | R1, R6, R8, R9 |
| 3 | TPS22914 | Picoballoon ICs:DSBGA-4 | U1, U3, U5 |
| 2 | 1μF | Picoballoon Passives:Capacitor 0201 | C6, C9 |
| 2 | 5.1kΩ | Picoballoon Passives:Resistor 0201 | R3, R4 |
| 1 | 10μF | Picoballoon Passives:Capacitor 0402 | C1 |
| 1 | 1kΩ | Picoballoon Passives:Resistor 0201 | R5 |
| 1 | 20021521-00010T1LF | Picoballoon Mechanical & Misc:20021521-00010T1LF | J3 |
| 1 | 20kΩ | Picoballoon Passives:Resistor 0201 | R2 |
| 1 | 330Ω | Picoballoon Passives:Resistor 0201 | R7 |
| 1 | CP2102N-A02-GQFN24R | Picoballoon ICs:QFN-24 4x4mm | U2 |
| 1 | EM-02KP | Picoballoon Mechanical & Misc:EM-02KP | SW2 |
| 1 | FPC socket 10P | Picoballoon Mechanical & Misc:FPC connector FPC-05F-10PH20 | J4 |
| 1 | PMEG3005EL,315 | Picoballoon Passives:Diode SOD-882 | D1 |
| 1 | PWR | Picoballoon Mechanical & Misc:MOLEX 532610271 | J5 |
| 1 | RED | Picoballoon Passives:LED 0603 | D2 |
| 1 | RST | Picoballoon Mechanical & Misc:Button GT-TC029B-H025-L1N | SW1 |
| 1 | SWD | Picoballoon Mechanical & Misc:20021521-00010T1LF | J2 |
| 1 | TPS7A2633DRVR | Picoballoon ICs:WSON-6 2x2mm | U4 |
| 1 | TYPE-C-31-M-12 | Picoballoon Mechanical & Misc:TYPE-C-31-M-12 | J1 |
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Questions
How big is the Debug Adapter PCB?
It measures 20 × 38.1 mm and has 2 copper layers, 0.92 mm thick.
What parts does the Debug Adapter use?
34 parts, built around the CP2102N-A02-GQFN24R, TPS22914BYFPR, ERJ1GNF1002C and RC0201FR-075K1L. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.
Where can I download the Debug Adapter KiCad files?
From the PicoballoonLabs/Debug-Boards repository on GitHub, at the commit this page was made from: the board is Debug Adapter/Debug Adapter.kicad_pcb and its schematic Debug Adapter/Debug Adapter.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Debug Adapter design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).