建置STM32F4 Discovery環境工具

MDK523.EXE: Microcontroller Development Kit Version 5.23
https://www.keil.com/demo/eval/arm.htm

Keil.STM32F4xx_DFP.2.11.0.pack: STMicroelectronics STM32F4 Series Device Support, Drivers and Examples
http://www.keil.com/dd2/stmicroelectronics/stm32f407vg/

en.stm32f4_dsp_stdperiph_lib.zip: STM32F4 DSP and standard peripherals library
http://www.st.com/en/embedded-software/stsw-stm32065.html

en.stsw-stm32091.zip: Clock configuration tool for STM32F40x/41x microcontrollers (AN3988)
http://www.st.com/en/development-tools/stsw-stm32091.html

en.stsw-link009.zip: ST-LINK, ST-LINK/V2, ST-LINK/V2-1 USB driver signed for Windows7, Windows8, Windows10
http://www.st.com/content/st_com/en/products/embedded-software/development-tool-software/stsw-link009.html

en.stsw-link004.zip: STM32 ST-LINK utility
http://www.st.com/content/st_com/en/products/embedded-software/development-tool-software/stsw-link004.html