A fork of opensource version of debugprobe built on RASPBERRY pico.It is extendedand modified to work with JTAG and SWD. This does not use FIFO and PIO functionality of debugprobe but uses standard ARM CMSIS-DAP.

This supports both JTAG & SWD for debugging using OpenOCD, Hence the name JTAGprobe

This project supports the following boards:

• Raspberry Pi Pico (RP2040)
• Raspberry Pi Pico 2 (RP2350)

The following is GPIO pinout for JTAG/SWD

You can download UF2 file or download entire code and build it as mentioned below.

For the purpose of making changes or studying of the code, you may want to compile the code yourself.

First, clone the repository:

git clone https://github.com/dst202/JTAGprobe
cd JTAGprobe

Initialize and update the submodules:

git submodule update --init --recursive

Before building, ensure you have the following installed:

• Raspberry Pi Pico SDK - Set PICO_SDK_PATH environment variable

  export PICO_SDK_PATH=/path/to/pico-sdk

• CMake (3.12 or higher)
• GCC ARM Embedded Toolchain

mkdir -p build/pico && cd build/pico
cmake ../.. -DPICO_BOARD=pico
make

The output will be build/pico/JTAGprobe.uf2

mkdir -p build/pico2 && cd build/pico2
cmake ../.. -DPICO_BOARD=pico2
make

The output will be build/pico2/JTAGprobe.uf2

1. Hold the BOOTSEL button on your Pico/Pico2
2. Connect to USB while holding BOOTSEL (the device will appear as RPI-RP2 drive)
3. Copy the appropriate .uf2 file to the drive:
   • For Pico (RP2040): build/pico/JTAGprobe.uf2
   • For Pico 2 (RP2350): build/pico2/JTAGprobe.uf2
4. The device will automatically reboot and run the firmware