基于单片机的固件搬运功能的设计与实现

Posted 2021-07-22 weixin_40228600

本设计要实现的单片机固件搬运功能，其实是实现单片机自己更新自己程序的过程，也就是固件更新。本设计利用STM32单片机运行速度快、片内资源丰富成本低和功耗低的特点,设计了一段固件更新的程序。首先论述了固件的概念和Boot Loader的应用以及原件的使用，其次论述了XModem协议，之后对STM32单片机内部的Flash进行预先规划。系统软件部分主要由Boot Loader程序、App程序组成，这些程序通过超级终端可以与嵌入式系统进行交互交互。Boot Loader程序和App程序使用C语言编写，具有非常好的可移植性和可读性。

关键词：固件；固件更新；STM32单片机；XModem协议；Boot Loader

Design and implementation of firmware based on MCU
Abstract
This design to achieve the MCU firmware handling function, in fact, is to achieve their own MCU update process, that is, firmware update. This design uses STM32 MCU running fast, rich resources, low cost and low power consumption, designs a firmware update program. Firstly, the concept of firmware, the application of boot loader and the use of the original are discussed. Secondly, the XMODEM protocol is discussed. Then, the flash in STM32 MCU is planned in advance. The software part of the system is mainly composed of