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STM32F413H-DISCO 其他数据使用手册 - ST Microelectronics（意法半导体）
制造商:
ST Microelectronics（意法半导体）
封装:
TRAY
描述:
开发套件, STM32F4系列ARM® Cortex®-M4 MCU, 1.5Mb闪存, 板载ST-LINK/V2-1
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STM32F413H-DISCO数据手册
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Overview of the ST-LINK versions TN1235
2/9 DocID029276 Rev 1
1 Overview of the ST-LINK versions
1.1 Brief history of the embedded ST-LINK versions
There is several versions of the embedded ST-LINK because new functionalities have been
incrementally added from the first version named ST-LINK. Here is a brief history of the
incremental changes on the naming of the versions.
The first two versions of the ST-LINK, embedded in ST discovery boards and in ST
evaluation boards, are:
• the ST-LINK version
• the ST-LINK/V2 version
A third version of the ST-LINK, the ST-LINK/V2-1 version, is an evolution of the ST-LINK/V2
version, adding the USB interface (mass storage interface and Virtual-COM-port) and
enabling better control of the power management for the STM32 embedded in the
application board. The ST-LINK/V2-1 is deployed on the most recent ST discovery boards,
ST evaluation boards and ST Nucleo boards.
Two others versions, derivatives of the ST-LINK/V2 version, have been implemented
afterwards, in order to support some of the functionalities newly added with the
ST-LINK/V2-1:
• the ST-LINK/V2-A version, for mass storage functionality.
• the ST-LINK/V2-B version, for mass storage and Virtual-COM-port.
1.2 ST-LINK USB interfaces
The ST-LINK and the ST-LINK/V2 embed a unique interface (ST debug) with the USB. At
power-on, the boards are in firmware-upgrade mode (also called DFU for "Device Firmware
Upgrade”), allowing the firmware to be updated through the USB. Some commands allow to
switch the ST-LINK from firmware-upgrade mode to STM8 debug mode or to STM32 debug
mode (depending on firmware capacity), but there is no command to switch back to
firmware-upgrade mode (a power cycle is required).
ST-LINK/V2-1, ST-LINK/V2-A and ST-LINK/V2-B are composite USB devices presenting a
mass storage interface and a virtual-COM-port interface to the USB, in addition to the ST
debug interface. They directly run their firmware at power-on. Firmware-upgrade mode is
entered through a dedicated command managed by the ST-LINK upgrade applications.
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