STM32F4xx系列的DSP和标准外设库是一个完整的软件包，包括所有标准外设的设备驱动程序，用于STM32F4xx设备的32位Flash微控制器

STM32F4xx官方固件库

stm32f4xx固件库

STM32F4xx固件库

STM32F4xx的正点原子的固件库

如果需要固件库文件可以给我留言，我后续再上传。

STM32F4XX固件库(V1.4)

STM32F4系列MCU固件库，最新版本V1.8.0，官网下载，没有任何修改，可放心使用！

电脑需先安装Keil MDK5。此固件库为Keil官方提供，直接双击安装即可，安装成功后在MDK5工程的Device中可以选择STM32该系列的ARM芯片。 Version: 2.14.0 (2019-07-24) Keil.STM32F4xx_DFP.2.14.0.pack Warning: --C99 is no longer enforced via the device description. Enable 'C99 Mode' in 'Options for Target' dialog's 'C/C++' tab. Updated Pack to include subset of STM32Cube_FW_F4 Firmware Package version V1.24.1 using HAL Drivers V1.7.6. Corrected RTE_Device.h UART5 pin configuration. MX_Device_h.ftl: Updated parsing of USART virtual mode. Updated generation of macros: Added handling for '(' and ')' symbols. Corrected launching STM32CubeMX via "play" button for existing projects overwrites with a new STM32CubeMX project file instead of loading existing project. Updated SVD files: Added SPI4RST missing field to STM32F401xE.svd, STM32F411xx.svd and STM32F412xG.svd. Updated Flash Algorithm: Added new target for STM32F4xx_1536.FLM including fix for GetSecNum() in this target. Updated Boards Examples: MCBSTM32F400: Added USB Device RNDIS example. GUI_VNC example GUIThread priority corrected from osPriorityIdle to osPriorityNormal. Updated File System Demo: corrected invalid free space value shown in case of unmounted drives. Graphics examples use Segger emWin version 5.50.0. All examples: Enable Event Recorder in debug targets. Updated LCDConf.c (ready for GUI_USE_ARGD = 1). Terminating app_main thread with osThreadExit() to avoid endless loop.

stm32单片机建工程所用的固件库，单片机工作的前提，选择自己所用的，也可以全用。