STM32F407Ddiscovery achieve serial print and light LED function

MDK bill develop\CORE\core_cm4.h
................\....\core_cm4_simd.h
................\....\core_cmFunc.h
................\....\core_cmInstr.h
................\....\startup_stm32f40_41xxx.s
................\FWLIB\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_dma2d.h
................\.....\...\stm32f4xx_exti.h
................\.....\...\stm32f4xx_flash.h
................\.....\...\stm32f4xx_flash_ramfunc.h
................\.....\...\stm32f4xx_fmc.h
................\.....\...\stm32f4xx_fsmc.h
................\.....\...\stm32f4xx_gpio.h
................\.....\...\stm32f4xx_hash.h
................\.....\...\stm32f4xx_i2c.h
................\.....\...\stm32f4xx_iwdg.h
................\.....\...\stm32f4xx_ltdc.h
................\.....\...\stm32f4xx_pwr.h
................\.....\...\stm32f4xx_rcc.h
................\.....\...\stm32f4xx_rng.h
................\.....\...\stm32f4xx_rtc.h
................\.....\...\stm32f4xx_sai.h
................\.....\...\stm32f4xx_sdio.h
................\.....\...\stm32f4xx_spi.h
................\.....\...\stm32f4xx_syscfg.h
................\.....\...\stm32f4xx_tim.h
................\.....\...\stm32f4xx_usart.h
................\.....\...\stm32f4xx_wwdg.h
................\.....\src\misc.c
................\.....\...\stm32f4xx_adc.c
................\.....\...\stm32f4xx_can.c
................\.....\...\stm32f4xx_crc.c
................\.....\...\stm32f4xx_cryp.c
................\.....\...\stm32f4xx_cryp_aes.c
................\.....\...\stm32f4xx_cryp_des.c
................\.....\...\stm32f4xx_cryp_tdes.c
................\.....\...\stm32f4xx_dac.c
................\.....\...\stm32f4xx_dbgmcu.c
................\.....\...\stm32f4xx_dcmi.c
................\.....\...\stm32f4xx_dma.c
................\.....\...\stm32f4xx_dma2d.c
................\.....\...\stm32f4xx_exti.c
................\.....\...\stm32f4xx_flash.c
................\.....\...\stm32f4xx_flash_ramfunc.c
................\.....\...\stm32f4xx_fmc.c
................\.....\...\stm32f4xx_fsmc.c
................\.....\...\stm32f4xx_gpio.c
................\.....\...\stm32f4xx_hash.c
................\.....\...\stm32f4xx_hash_md5.c
................\.....\...\stm32f4xx_hash_sha1.c
................\.....\...\stm32f4xx_i2c.c
................\.....\...\stm32f4xx_iwdg.c
................\.....\...\stm32f4xx_ltdc.c
................\.....\...\stm32f4xx_pwr.c
................\.....\...\stm32f4xx_rcc.c
................\.....\...\stm32f4xx_rng.c
................\.....\...\stm32f4xx_rtc.c
................\.....\...\stm32f4xx_sai.c
................\.....\...\stm32f4xx_sdio.c
................\.....\...\stm32f4xx_spi.c
................\.....\...\stm32f4xx_syscfg.c
................\.....\...\stm32f4xx_tim.c
................\.....\...\stm32f4xx_usart.c
................\.....\...\stm32f4xx_wwdg.c
................\HARDWARE\IIC\myiic.c
................\........\...\myiic.h
................\........\LED\led.c
................\........\...\led.h
................\........\STK8BA50R\stk8ba50r.c
................\........\.........\stk8ba50r.h
................\keilkilll.bat
................\OBJ\delay.crf
................\...\delay.d
................\...\delay.o
................\...\ExtDll.iex
................\...\LED.axf
................\...\led.crf
................\...\led.d
................\...\LED.hex
................\...\LED.htm
................\...\LED.lnp
................\...\LED.map
................\...\led.o
................\...\LED.sct
................\...\LED_LED.dep
................\...\main.crf
................\...\main.d
................\...\main.o
................\...\misc.crf
................\...\misc.d
................\...\misc.o
................\...\myiic.crf

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