STM32F4 MCU相关资料：
  STM32F4编程手册
STM32F3xxx and STM32F4xxx Cortex-M4 programming manual
PM0214 Programming Manual.pdf (3.3 MB)
  讲STM32F40x MCU的Datasheet
STM32F40x Reference Manual
RM0090 Reference Manual.pdf.zip (10.4 MB)
  STM32F405xx STM32F407xx Datasheet--Production data
具体讲述405xx和407xx不同型号后缀的产品的具体配置。
DM00037051.pdf (5.3 MB)
  STM32F4 MCU外设模块以及相关应用笔记：
  STM32F40xxx and STM32F41xxx Flash programming manual
PM0081 Programming Manual.pdf (382.7 KB)
  STM32  microcontroller system memory boot mode，介绍STM32系统启动模式，与启动引导相关的还有：
AN3965，AN3155，AN3968
AN2606 Application Note.pdf (1.8 MB)
  Clock configuration tool for STM32F40x/41x microcontrollers，配置F4时钟
AN3988 Application Note.pdf (789.3 KB)
  STM32F1xx, STM32F2xx, STM32F4xx, STM32L1xx timer overview，介绍定时器
AN4013 Application Note.pdf (556.0 KB)
  Using floating-point unit (FPU) with STM32F405/07xx and STM32F415/417xx microcontrollers，介绍F4上面FPU
AN4044 Application Note.pdf (281.8 KB)