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STM32L071V8 开发手册 - ST Microelectronics（意法半导体）
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July 2017 DocID13801 Rev 31 1/283
1
AN2606
Application note
STM32 microcontroller system memory boot mode
Introduction
The bootloader is stored in the internal boot ROM memory (system memory) of STM32
devices. It is programmed by ST during production. Its main task is to download the
application program to the internal Flash memory through one of the available serial
peripherals (USART, CAN, USB, I
2
C, SPI, etc.). A communication protocol is defined for
each serial interface, with a compatible command set and sequences. This document
applies to the products listed in
Table 1. They are referred as STM32 throughout the
document.
This application note presents the general concept of the bootloader. It describes the
supported peripherals and hardware requirements to be considered when using the
bootloader of STM32 devices. However the specifications of the low-level communication
protocol for each supported serial peripheral are documented in separate documents as
referred in
Section 1: Related documents.
Table 1. Applicable products
Type Part number or product series
Microcontrollers
STM32F0 Series: STM32F03xxx, STM32F04xxx, STM32F05xxx, STM32F07xxx,
STM32F09xxx
STM32F1 Series.
STM32F2 Series.
STM32F3 Series: STM32F301xx, STM32F302xx, STM32F303xx, STM32F318xx,
STM32F328xx, STM32F334xx, STM32F358xx, STM32F373xx,
STM32F378xx, STM32F398xx
STM32F4 Series: STM32F401xx, STM32F405xx, STM32F407xx, STM32F410xx,
STM32F411xx, STM32F412xx, STM32F413xx, STM32F415xx,
STM32F417xx, STM32F423xx, STM32F427xx, STM32F429xx,
STM32F437xx, STM32F439xx, STM32F446xx, STM32F469xx,
STM32F479xx
STM32F7 Series: STM32F722xx, STM32F723xx, STM32F732xx, STM32F733xx,
STM32F745xx, STM32F746xx, STM32F756xx, STM32F765xx,
STM32F767xx, STM32F769xx, STM32F777xx, STM32F779xx
STM32H7 Series: STM32H743xx, STM32H753xx
STM32L0 Series.
STM32L1 Series: STM32L100xx, STM32L151xx, STM32L152xx, STM32L162xx
STM32L4 series: STM32L431xx, STM32L432xx, STM32L433xx, STM32L442xx,
STM32L443xx, STM32L451xx, STM32L452xx, STM32L462xx,
STM32L471xx, STM32L475xx, STM32L476xx, STM32L486xx,
STM32L496xx, STM32L4A6xx
www.st.com
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