Spark Logic

Black Magic Probe Mini connection guide

Black Magic Probe Mini Mini V2.1e debug header wiring guide with power, signal assignments, and bench checks.

Mini V2.1e debug header

10 contacts Current package

1BitSquared · 10 positions · 1.27 mm pitch · Cortex debug connector

Power the probe and target separately

Required

Connect the probe to the host by USB and use the target board’s own supply. Keep the probe’s target power disabled. Use the probe’s reference pin only to sense the already powered target rail in this setup.

Bench checks

  • Identify pin 1 at both ends before attaching the cable.
  • Measure the target’s I/O rail with respect to ground. Check that it is inside the V2.1e debug voltage range.

Black Magic Debug, Getting Started, target wiring and GDB connection

Connection scenarios

Scan a target over SWD

Keep the target’s own power supply. Wire data and clock, and connect reset if the target exposes it. In GDB, open the probe’s debug port with target extended-remote and run monitor swd_scan.

Bench checks

  • Check that the probe reports the expected target voltage.
  • Read the device identity in the scan result before programming or changing target state.

Black Magic Probe Mini V2.1e schematic, JTAG-10 block. Black Magic Debug, Getting Started, target wiring and GDB connection.

Mini V2.1e debug header wiring map

Highlighted contacts are used in the required step or selected circuit. Select a contact to inspect it.

Connector contact view. Match the keyed position and pin 1 to the probe’s marking.
Selected pin details

1 · VTref

Target reference · Power

Connect to the powered target’s I/O rail. It sets the voltage reference for the probe’s level shifters.

Black Magic Probe Mini V2.1e schematic, JTAG-10 block

Electrical limits · Pin in the reference

Models and documents

This map covers the target debug header of BMP Mini V2.1e. Check the official hardware pages for the auxiliary serial connector, older 20-contact probes and the V2.3 unified connector.

BMP Mini V2.1e
Official 1BitSquared V2.1e hardware.