IIC初始化程序

根据刘洋视频教学，自己学习之后写出来的IIC驱动程序，可以移植，比如使用IIC的外设，如光照强度传感器等等。有什么地方需要赶紧希望大家提出来，我会积极学习改进

外设程序02！
USR
System
Readme
Lib
ASM
core_cm3.crf
core_cm3.d
core_cm3.o
i2c.crf
i2c.d
i2c.o
KHR-STM32.axf
KHR-STM32.hex
KHR-STM32.htm
KHR-STM32.lnp
KHR-STM32.map
KHR-STM32.plg
KHR-STM32.sct
KHR-STM32.uvgui.Administrator
KHR-STM32.uvgui.L
KHR-STM32.uvgui_Administrator.bak
KHR-STM32.uvopt
KHR-STM32.uvproj
KHR-STM32_KHR-STM32.dep
KHR-STM32_Target 1.dep
main.c
main.crf
main.d
main.o
misc.crf
misc.d
misc.o
pbdata.crf
pbdata.d
pbdata.o
shiyan.axf
shiyan.hex
shiyan.htm
shiyan.lnp
shiyan.map
shiyan.plg
shiyan.sct
shiyan.uvgui.Administrator
shiyan.uvgui_Administrator.bak
shiyan.uvopt
shiyan.uvproj
shiyan_LY-STM32.dep
shiyan_Target 1.dep
startup_stm32f10x_hd.d
startup_stm32f10x_hd.lst
startup_stm32f10x_hd.o
stm32f10x_exti.crf
stm32f10x_exti.d
stm32f10x_exti.o
stm32f10x_gpio.crf
stm32f10x_gpio.d
stm32f10x_gpio.o
stm32f10x_i2c.crf
stm32f10x_i2c.d
stm32f10x_i2c.o
stm32f10x_it.crf
stm32f10x_it.d
stm32f10x_it.o
stm32f10x_rcc.crf
stm32f10x_rcc.d
stm32f10x_rcc.o
stm32f10x_rtc.crf
stm32f10x_rtc.d
stm32f10x_rtc.o
stm32f10x_tim.crf
stm32f10x_tim.d
stm32f10x_tim.o
stm32f10x_usart.crf
stm32f10x_usart.d
stm32f10x_usart.o
system_stm32f10x.crf
system_stm32f10x.d
system_stm32f10x.o