5822 – ST-LINK – V2 (CN)/en

Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

Summary

The ST-LINK/V2 (CN) is a USB-based in-circuit debugger and programmer that communicates with STM8 and STM32 microcontrollers via the SWIM and JTAG/SWD interfaces. It is supplied as an original ST product; no CD-ROM is included, as drivers and software must be downloaded online.

Related products at JW Tech

Technical overview

Supported interfaces: SWIM and JTAG/SWD
Brand: ST; Product type: Programmers & Debuggers
No CD-ROM included; drivers and STVP software are downloaded online
When designing a download circuit, at least one of the two pins must be powered from an external 3.3 V input
For STM8 without external target-board power, the downloader can supply power by shorting two points (caution: risk of damage and warranty loss)
Missing target-board detection is often caused by missing power or poor USB contact
Keil version must be at least 5.25 to avoid download errors
Firmware issues can cause USB communication errors; upgrade via the ST-Link upgrade utility

Notes and version constraints

Shorting method for target power may damage the downloader and target board and void the ST warranty – use with caution.
No official firmware upgrade tool name or exact commands present in source text; precise steps require human confirmation.
Version sensitivity: Keil must be at least version 5.25; older versions cause errors.
USB recognition issues often depend on cable, port, or firmware; multiple possible causes.

Source and revision record

ST-LINK/V2 (CN) - Waveshare Wiki
Source revision: 67963
Captured: 2026-08-29T08:47:12+00:00
SHA-256: db88deefa2f466bf52bf94ba4f2a6b5fd44128ae972ab5c489a409c44a7895a7