Overview
Raspberry Pi Debug Probe is a plug-and-play debug probe that bridges USB to a dedicated serial-debug interface and to an industrystandard UART interface. Designed for Raspberry Pi Pico, XIAO RP2040, other RP2040-based microcontrollers, and microprocessor-based platforms, it uses a compact, keyed 3pin debug connector with a single unidirectional clock pin and a bidirectional data I/O pin. It provides standard CMSISDAP debug and UART interfaces over USB and can also be used as a costeffective USBtoUART cable.
Key Features
- Allinone debug probe: bridges USB to dedicated serial debug and industrystandard UART.
- Plugandplay 3pin keyed debug connector; single clock (SC) and bidirectional data (SD).
- Multiple debug platforms supported: Raspberry Pi Pico and RP2040, plus other microcontroller and microprocessorbased targets.
- Raspberry Pi production quality: based on the Raspberry Pi Pico hardware design and runs the opensource PicoProbe software.
- Arrangement can support ARMs Serial Wire Debug (SWD) or cJTAG over SC/SD.
Specifications
| Interfaces over USB |
CMSISDAP debug; UART |
| Debug connector |
Keyed 3pin (SC, SD, GND) |
| Signal scheme |
1 unidirectional clock (SC) and 1 bidirectional data (SD) |
| Target compatibility |
Raspberry Pi Pico, XIAO RP2040, other RP2040based MCUs, and microprocessorbased platforms |
Pinout
| Pin Number |
UART Signal |
Serial Debug Signal |
| 1 |
RX |
SC (Serial Clock) |
| 2 |
GND |
GND |
| 3 |
TX |
SD (Bidirectional Serial Data) |
Note: The UART TX and RX labels are from the target perspective.
Whats Included
| Raspberry Pi Debug Probe |
x1 |
| Plastic Case |
x1 |
| USB Cable |
x1 |
| Debug Cable (3pin Debug to 3pin Debug; 3pin Debug to 0.1inch Header (Female); 3pin Debug to 0.1inch Header (Male)) |
x3 |
Applications
- Debugging Raspberry Pi Pico, RP2040, and other targets via CMSISDAP.
- USBtoUART connection for development, logging, and provisioning.
Documents
- Raspberry Pi Debug Probe Datasheet
- Raspberry Pi 3pin Debug Connector Specification
- Opensource PicoProbe software
Details
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