关于STM32F4内部flash的操作

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于 2014-04-01 09:27:32 发布 · 5.9k 阅读

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本文介绍如何操作STM32F4系列，特别是STM32F407的1M内部Flash。内容包括初始化、写入操作，强调在进行操作时需要注意不要使用第0扇区，因为该扇区包含bootloader和主程序，错误操作可能导致程序运行异常。

stm32f4系列，我用的407有1m的内部flash扇区有12个

初始化以及写入操作如下【这是从官方的库文件中摘出来的】

/****************
  *          ===================================================================
  *                                 How to use this driver
  *          ===================================================================
  *                           
  *          This driver provides functions to configure and program the FLASH 
  *          memory of all STM32F4xx devices.
  *          These functions are split in 4 groups:
  * 
  *           1. FLASH Interface configuration functions: this group includes the
  *              management of the following features:
  *                    - Set the latency
  *                    - Enable/Disable the prefetch buffer
  *                    - Enable/Disable the Instruction cache and the Data cache
  *                    - Reset the Instruction cache and the Data cache
  *  
  *           2.