April 2024 UM1075 Rev 10 1/20

UM1075

User manual

ST-LINK/V2 in-circuit debugger/programmer

for STM8 and STM32

Introduction

The ST-LINK/V2 is an in-circuit debugger/programmer for the STM8 and STM32

microcontrollers. The single wire interface module (SWIM) and the JTAG/serial wire

debugging (SWD) interfaces facilitate communication with any STM8 or STM32

microcontroller operating on an application board.

In addition to providing the same functionalities of the ST-LINK/V2, the ST-LINK/V2-ISOL

features digital isolation between the PC and the target application board. It also withstands

voltages of up to 1000 V

RMS

The USB full-speed interface enables communication with a PC and:

• STM8 devices via ST Visual Develop (STVD) or ST Visual Program (STVP) software

(available from STMicroelectronics)

• STM32 devices via IAR

™

, Keil

, STM32CubeIDE, STM32CubeProgrammer, and

STM32CubeMonitor integrated development environments.

Figure 1. ST-LINK/V2 and ST-LINK/V2-ISOL

ST-LINK/V2 ST-LINK/V2-ISOL

www.st.com

Contents UM1075

2/20 UM1075 Rev 10

Contents

1 Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

3 Product contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

4 Hardware configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

4.1 Connection with STM8 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4.1.1 Standard ERNI connection with SWIM flat ribbon . . . . . . . . . . . . . . . . . . 9

4.1.2 Low-cost SWIM connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.1.3 SWIM signals and connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

4.2 Connection with STM32 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

4.3 ST-LINK/V2 status LED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

5 Software configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.1 ST-LINK/V2 firmware upgrade . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.2 STM8 application development . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

5.3 STM32 application development and flash programming . . . . . . . . . . . . 16

6 Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

7 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19