dbg_mcu (STM32_MICROCONTROLLER)

V1.1

-USB-C (USB 2.0) STM32F072CBT6-based programmer/debug adapter board.

• USB-C powered + USB 2.0 device interface
• Target programming/debug via SWD
• Dedicated reset control and debug access points
• On-board power section (labeled POWER) with switching and protection components

Hardware overview

• MCU: STM32F072CBT6
• USB: USB-C 2.0 (device/UFP configuration)
• Debug: SWDIO / SWCLK / NRST / GND
• Board: DEBUGGER_V1.0

Connectors & headers

• USB-C: primary power + USB data connection
• J2 (DEBUG header): main target interface header (SWD + reset + power reference)
• J1 / J3 / S1 / S2: board configuration/jumper/select features (see silkscreen)

Test points (silkscreen labels)

• TP2_3V3: 3.3V rail test point
• TP3_GND: ground reference test point
• TP4_NRST: target reset test point
• TP5_SWDIO: SWD data test point
• TP6_SWCLK: SWD clock test point

On-board power (POWER block)

Located on the left side of the board (near SW1 and components marked U3/U4).

• Input comes from USB-C 5V
• Generates and distributes rails used by the MCU/debug interface
• Protection/fusing present (F1)

Buttons / switches

• RESET area (SW2): reset functionality (see silkscreen)
• SW1 (POWER area): power-related switching (see silkscreen)

PROGRAM/DEBUG HEADER

J2 pinout reference:

• Pin 1: +3V3
• Pin 2: SWDIO
• Pin 3: GND
• Pin 4: SWCLK
• Pin 5: GND
• Pin 10: NRST

DESIGNED & ENGINEERED BY BRANDON SHELLY