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STM32内部Flash模拟成U盘，实现拖拽Hex/Bin文件进行固件升级

C 98.19% Assembly 0.62% CSS 0.13% C++ 0.31% Objective-C 0.58% Batchfile 0.17%

stm32-iap-msd's Introduction

###STM32 Flash-Udisk-IAP

:项目说明

STM32内部Flash模拟成U盘进行固件升级。系统上电之后在3S内检测到PC连接到STM32成功则进入Boot模式，此时将固件拖入U盘则完成升级，之后跳转到App区域执行用户代码。

注意事项：

  • BOOT区域划分20K
  • App区域从0x8004000开始
  • App程序进入Main后首先需要设置中断向量表地址并且在工程配置里设置flash起始地址是0x8004000
  • 支持HEX文件拖拽升级
  • 支持BIN文件拖拽升级

项目开发过程：

  1. 在Win10上bin文件烧录过程会失败，Win7待测 2019050

    • Win7同样会失败，初步原因分析是数据丢包 20190507
    • bin文件写入地址不正确，重新实现写入flash数据的算法，解决了bug 20190511

  2. 在Win10上hex文件只能烧录一次，Win7待测 20190506

    • Win7上也是只能烧录一次，已经找到BUG，再第二次烧录前flash没有擦除，问题已经解决 ----20190507
    • hex文件与LAB值解耦合，重新实现写入算法，解决了bug 20190511

  3. 文件16.xK 希望可以裁剪到10K左右 ----20190511

    • 已经将BOOT从16K压缩到10.7K,希望可以压缩到10K以内。----20190512

stm32-iap-msd's People

Contributors

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