myl-debug-probe

Multi-Target Debug Probe & Test Jig

myl-debug-probe builds on the open source Black Magic Probe firmware, running on the RP2040's PIO peripherals to implement SWD/JTAG debug and programming without a separate debug chip. A single probe gives you a self-contained GDB server plus a full flashing tool.

Beyond day-to-day development, myl-debug-probe can store multiple firmware binaries onboard and flash targets headless, without a host PC attached. That makes it equally at home on a bench as it is embedded in a production test jig, where it can also act as a hardware watchdog for the unit under test.

Built on the open source Black Magic Probe firmware
Runs on RP2040 PIO — no separate debug chip required
Stores multiple binaries for headless, PC-free flashing
Doubles as a production test jig
Hardware watchdog mode for the target under test
Pairs with the BMP Debug VS Code extension