Based on the STM32 development board testing procedures, very useful

GPIO-LED
........\BaseDrive
........\.........\Gpio.c
........\.........\Gpio.h
........\Doc
........\...\ReadMe.txt
........\Libraries
........\.........\CMSIS
........\.........\.....\CMSIS END USER LICENCE AGREEMENT.pdf
........\.........\.....\Device
........\.........\.....\......\ST
........\.........\.....\......\..\STM32F4xx
........\.........\.....\......\..\.........\Include
........\.........\.....\......\..\.........\.......\stm32f4xx.h
........\.........\.....\......\..\.........\.......\system_stm32f4xx.h
........\.........\.....\......\..\.........\Release_Notes.html
........\.........\.....\......\..\.........\Source
........\.........\.....\......\..\.........\......\Templates
........\.........\.....\......\..\.........\......\.........\arm
........\.........\.....\......\..\.........\......\.........\...\startup_stm32f4xx.s
........\.........\.....\......\..\.........\......\.........\gcc_ride7
........\.........\.....\......\..\.........\......\.........\.........\startup_stm32f4xx.s
........\.........\.....\......\..\.........\......\.........\iar
........\.........\.....\......\..\.........\......\.........\...\startup_stm32f4xx.s
........\.........\.....\......\..\.........\......\.........\system_stm32f4xx.c
........\.........\.....\......\..\.........\......\.........\TASKING
........\.........\.....\......\..\.........\......\.........\.......\cstart_thumb2.asm
........\.........\.....\......\..\.........\......\.........\TrueSTUDIO
........\.........\.....\......\..\.........\......\.........\..........\startup_stm32f4xx.s
........\.........\.....\Documentation
........\.........\.....\.............\CMSIS-SVD_Schema_1_0.xsd
........\.........\.....\.............\CMSIS_CM4_SIMD.htm
........\.........\.....\.............\CMSIS_Core.htm
........\.........\.....\.............\CMSIS_DebugSupport.htm
........\.........\.....\.............\CMSIS_History.htm
........\.........\.....\.............\CMSIS_Logo_Final.jpg
........\.........\.....\.............\CMSIS_System_View_Description.htm
........\.........\.....\Include
........\.........\.....\.......\arm_common_tables.h
........\.........\.....\.......\arm_math.h
........\.........\.....\.......\core_cm0.h
........\.........\.....\.......\core_cm3.h
........\.........\.....\.......\core_cm4.h
........\.........\.....\.......\core_cm4_simd.h
........\.........\.....\.......\core_cmFunc.h
........\.........\.....\.......\core_cmInstr.h
........\.........\.....\index.htm
........\.........\.....\README.txt
........\.........\STM32F4x7_ETH_Driver
........\.........\....................\inc
........\.........\....................\...\stm32f4x7_eth.h
........\.........\....................\...\stm32f4x7_eth_conf_template.h
........\.........\....................\Release_Notes.html
........\.........\....................\src
........\.........\....................\...\stm32f4x7_eth.c
........\.........\STM32F4xx_StdPeriph_Driver
........\.........\..........................\inc
........\.........\..........................\...\misc.h
........\.........\..........................\...\stm32f4xx_adc.h
........\.........\..........................\...\stm32f4xx_can.h
........\.........\..........................\...\stm32f4xx_crc.h
........\.........\..........................\...\stm32f4xx_cryp.h
........\.........\..........................\...\stm32f4xx_dac.h
........\.........\..........................\...\stm32f4xx_dbgmcu.h
........\.........\..........................\...\stm32f4xx_dcmi.h
........\.........\..........................\...\stm32f4xx_dma.h
........\.........\..........................\...\stm32f4xx_exti.h
........\.........\..........................\...\stm32f4xx_flash.h
........\.........\..........................\...\stm32f4xx_fsmc.h
........\.........\..........................\...\stm32f4xx_gpio.h
........\.........\..........................\...\stm32f4xx_hash.h
........\.........\..........................\...\stm32f4xx_i2c.h
........\.........\..........................\...\stm32f4xx_iwdg.h
........\.........\.................

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