UM1075 Rev 8

11/19

UM1075

Hardware configuration

18

Figure 8. Target SWIM connector

Table 3 summarizes the signal names, functions, and target connection signals using the

separate-wires cable.

As the SWIM separate-wires cable has independent connectors for all pins on one side, it is

possible to connect the ST-LINK/V2-ISOL to an application board without a standard SWIM

connector. On this flat ribbon, all signals are referenced by a specific color and a label to

ease the connection on target.

TVCC, SWIM, GND and SWIM-RST can be connected to a low-cost 2.54 mm pitch

connector or to pin headers available on the target board.

Table 2. SWIM flat ribbon connections for ST-LINK/V2

Pin no.

Name

Function

Target connection

1

VDD

1. The power supply from the application board is connected to the ST-LINK/V2 debugging and programming

board to ensure signal compatibility between both boards.

MCU VCC

2

DATA

SWIM

MCU SWIM pin

3

GND

GROUND

GND

4

RESET

RESET

MCU RESET pin

Table 3. SWIM low-cost cable connections for ST-LINK/V2-ISOL

Color

Cable pin name

Function

Target connection

Red

TVCC

1. The power supply from the application board is connected to the ST-LINK/V2 debugging and programming

board to ensure signal compatibility between both boards.

MCU VCC

Green

UART-RX

Unused

(not connected on the target board)

2. BOOT0, UART-TX and UART-RX are reserved for future developments.

Blue

UART-TX

Yellow

BOOT0

Orange

SWIM

SWIM

MCU SWIM pin

Black

GND

GROUND

GND

White

SWIM-RST

RESET

MCU RESET pin