UniDebug is an open-source hardware project that serves as a unified debugger and prototyping tool for a wide range of microcontrollers and FPGAs. With versatile features and robust components, it provides a seamless debugging and development experience.
UniDebug integrates 4 independent microcontrollers, each running dedicated debug firmware:
| MCU | Firmware | Debug Protocol | Target |
|---|---|---|---|
| STM32F103 | ST-Link V2.1 | SWD/JTAG | ARM Cortex-M targets |
| STM32F103 | BlackMagic Debug | GDB/SWD/JTAG | ARM targets (no OpenOCD needed) |
| RP2040 | PicoProbe (CMSIS-DAP) | SWD | Raspberry Pi RP2xxx |
| STM32F103 | Custom | I2C/GPIO | Power and USB Hub supervisor, target voltage control, power management |
The FT2232H provides dual-channel USB High-Speed JTAG/SPI/I2C via MPSSE.
Commercial debug probes (Segger J-Link, Lauterbach) are expensive and single-protocol. UniDebug consolidates 4 debug probes + a high-speed FTDI interface into one USB-C board with ESD protection and configurable target voltage (1.2V–5V).
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FT2232H Dual Channel USB High-Speed FIFO Controller:
- Dual-channel support for UART, JTAG, GPIO, I2C, SPI, and more using MPSSE.
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Black Magic Debug Probe:
- Adjustable target voltage for precise debugging.
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ST Link V2.1 Compatible Debug Probe:
- Widely supported and compatible with popular debugging tools.
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Raspberry Pi RP2040 Pico Debug Probe:
- Integration for Raspberry Pi Pico development.
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Display and Power Management Interface:
- Efficient management of display and power resources.
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4-Port USB Hub and USB Type-C:
- Enhanced connectivity options for multiple devices.
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ESD Protection Diodes:
- Ensures the safety of external interfaces.
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Barrel Jack for Extra Power:
- Additional power support for extended usage.
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KiCad Project:
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Gerber Files:
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Bill of Materials (BOM):
We welcome contributions from the community.
UniDebug © 2023 is licensed under CC BY-NC-SA 4.0. To view a copy of this license, click here.