Raspberry Pi Debug Probe Official Kit

 Specifications

• Processor: RP2040 (The probe itself runs on Raspberry Pi's own silicon)

      Interfaces:

• CMSIS-DAP: Standard Serial Wire Debug (SWD) support.
• UART Bridge: Secondary channel for Serial Console output.

• Connector Type: Industry-standard 3-pin JST-SH (1.0mm pitch).
• Logic Voltage: 3.3V (Fixed).
• USB Interface: Micro-USB (for connection to PC/Host).
• Form Factor: Encased in a protective, transparent plastic shell.
• Compatibility: Optimized for Raspberry Pi Pico, Pico W, and any Arm Cortex-M
• based microcontroller supporting CMSIS-DAP.

Applications

• Professional Firmware Development: Essential for writing complex C/C++ applications where timing analysis is critical.
• IoT Device Troubleshooting: Debugging Wi-Fi stacks on the Pico W without interrupting the network flow.
• Arm Cortex Learning: Use it to debug other Arm-based microcontrollers that support SWD (Serial Wire Debug).
• Industrial Automation: Reliable field reprogramming tool for RP2040-based industrial controllers.

Unlock New Capabilities: The Developer's Journey

      From "Code & Pray" to Professional Engineering

• Prerequisites (The Past): You have likely mastered blinking LEDs and reading sensors using the basic USB drag-and-drop method. You are frustrated by crashes that give no error messages.
• The Upgrade (This Product): The Debug Probe unlocks Hardware-Level Visibility. You can now freeze the processor instantly when a bug occurs, look at the exact value of every register, and see the call stack to know how you got there. It also unifies your console output (UART) and upload method into a single USB connection.
• Effort Level: Intermediate. Requires setting up OpenOCD and configuring your IDE (like VS Code or Eclipse).

Virtual Technician: Setup & Wiring Guide

• ⚠️ Logic Warning: This probe operates at 3.3V logic. Do not connect it directly to 5V systems without a level shifter, or you will damage the probe.

Pin Mapping (Standard Pico H / W) The probe uses JST-SH connectors which plug directly into the debug header on newer Pico boards.

• SC (Serial Clock): Connects to the SWCLK pin on the target.
• SD (Serial Data): Connects to the SWDIO pin on the target.
• GND: Common Ground.

      UART Connection (Optional):

• RX (Probe): Connect to TX on your target.
• TX (Probe): Connect to RX on your target.
• GND: Must be connected for the signal to be clean.

Package Includes:

• 1 x Raspberry Pi Debug Probe Official Kit

Frequently Asked Questions (FAQ)

• Does the Raspberry Pi Debug Probe work with Arduino IDE?
  Yes, if you select the correct debugger option (OpenOCD/CMSIS-DAP) in the Arduino IDE 2.0 settings for RP2040 boards.
• Does it require soldering on the Raspberry Pi Pico?
  If you have a Pico H or Pico W (with headers), you can plug it directly. For a standard Pico, you must solder the SWD pins or use the included male header cables.
• Is the firmware on the probe updatable?
  Yes, the probe is built on an RP2040. You can update the firmware by holding the boot button on the probe and dragging the new .uf2 file onto it.
• What is the difference between this and a generic FTDI adapter?
  An FTDI adapter only provides UART (Serial) communication. This Debug Probe provides BOTH UART and SWD (Serial Wire Debug), allowing you to upload code and step through it.
• Does it support 5V logic targets?
  No. The IO pins are 3.3V only. Using it with 5V targets requires an external logic level converter.
• Can I use this with MicroPython?
  MicroPython debugging is generally done via the REPL. This probe is primarily designed for C/C++ development, though the UART bridge remains useful for MicroPython serial output.
• Why is my computer not recognizing the probe?
  Ensure you are using the included high-quality USB cable. Check Device Manager (Windows) or lsusb (Linux) to see if "CMSIS-DAP" is listed.
• Does it work with Rust on Raspberry Pi Pico?
  Yes, the Rust Embedded community (probe-rs) supports CMSIS-DAP adapters like this one for flashing and debugging RP2040 projects.
• What connector does the probe use? It uses 3-pin JST-SH (1.0mm pitch) connectors. The kit includes adapter cables to convert this to standard jumper wires.
• Can I use two probes on one computer?
  Yes, each probe has a unique serial number, allowing OpenOCD to distinguish between multiple connected probes.
• Is this compatible with the Raspberry Pi 4 or 5?
  You plug the USB end into a Pi 4/5 (or PC) to act as the host. The probe then connects to the target microcontroller (like a Pico). It does not debug the Pi 4 CPU itself.
• What is the maximum SWD clock speed?
  The default is usually robust (around 5MHz), but it can be adjusted in the OpenOCD configuration if you have signal integrity issues with long cables.
• Does it provide power to the target board?
  No, the debug probe does not supply power to the target Pico. You must power your Pico via its own USB port or VSYS pin.
• Can I use the UART port for other serial devices?
  Yes, the UART side acts as a standard USB-to-TTL serial adapter and can be used to talk to GPS modules, sensors, or other microcontrollers.
• Why do I see two USB interfaces when I plug it in?
  One interface is for the Debugger (CMSIS-DAP), and the other is for the UART Bridge (CDC ACM). This is normal behavior.
• Is the plastic case removable?
  Yes, the plastic case snaps together. You can remove the board if you need to mount it inside a custom enclosure.
• Does it support JTAG debugging?
  The RP2040 uses SWD (Serial Wire Debug), not full JTAG. This probe is designed for SWD specifically.
• Can I use this with Visual Studio Code?
  Yes, the "Cortex-Debug" extension in VS Code works perfectly with this probe using the standard Raspberry Pi OpenOCD configuration files.
• What happens if I wire the SWD pins backwards?
  It generally won't damage the board immediately due to low current, but the debugger will fail to initialize.
• Always check the pinout: Ground to Ground, SWDIO to Data, SWCLK to Clock.