STM32F4 Discovery的例程 GitHub上有几十个  https://github.com/MaJerle/stm32f429
  STM32F4-Discovery开发套件相关资料：
  索引：UM1472 User Manual
标题：STM32F4DISCOVERY STM32F4 high-performance discovery board
文档说明：STM32F4-DISCOVERY开发板资源介绍与使用说明
DM00039084.pdf (2.2 MB)
  索引：UM1467 User Manual
标题：Getting started with software and firmware environments for the STM32F4DISCOVERY Kit
文档说明：文档第一句话就很好地说明了一切  This document describes the software, firmware environment and development recommendations required to build an application around the STM32F4DISCOVERY board.
DM00037368.pdf (1.7 MB)
  索引：AN3983 Application Note
标题：STM32F4DISCOVERY peripheral firmware examples
文档说明：STM32F4-DISCOVERY开发板外设例程Demo
DM00038796.pdf (146.8 KB)
  索引：AN3990 Application Note
标题：Upgrading STM32F4DISCOVERY board firmware using a USB key
文档说明：使用USB KEY对STM32F4-DISCOVERY进行固件升级，即通过IAP编程方式，从U盘中读取程序下载到STM32F4中。
DM00039672.pdf (204.2 KB)