stm32超声波测距程序

stm32F103ZET6开发板，超声波模块是HC-SR04，有效测距范围在5cm-200cm之间。usart1串口通信。

51单片机超声波测距C程序.doc
CMSIS
core_cm3.c
core_cm3.h
startup
stm32f10x.h
system_stm32f10x.c
system_stm32f10x.h
FWlib
inc
src
Listing
startup_stm32f10x_hd.lst
STM32-DEMO.map
Output
core_cm3.crf
core_cm3.d
core_cm3.o
led.crf
led.d
led.__i
main.crf
main.d
main.o
main.__i
misc.crf
misc.d
misc.o
startup_stm32f10x_hd.d
startup_stm32f10x_hd.o
STM32-DEMO.axf
STM32-DEMO.htm
STM32-DEMO.lnp
STM32-DEMO.plg
STM32-DEMO.sct
STM32-DEMO.tra
STM32-DEMO_sct.Bak
stm32f10x_gpio.crf
stm32f10x_gpio.d
stm32f10x_gpio.o
stm32f10x_it.crf
stm32f10x_it.d
stm32f10x_it.o
stm32f10x_rcc.crf
stm32f10x_rcc.d
stm32f10x_rcc.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
tim2.crf
tim2.d
tim2.o
tim2.__i
ultrasonicwave.crf
ultrasonicwave.d
ultrasonicwave.o
ultrasonicwave.__i
usart1.crf
usart1.d
usart1.o
usart1.__i
USER
JLink Regs CM3.txt
JLinkLog.txt
JLinkSettings.ini
main.c
readme.txt
RTE
STM32-DEMO.plg
STM32-DEMO.uvgui.Administrator
STM32-DEMO.uvgui.flyleaf
STM32-DEMO.uvguix.WnagBaozhu
STM32-DEMO.uvgui_Administrator.bak
STM32-DEMO.uvgui_flyleaf.bak
STM32-DEMO.uvopt
STM32-DEMO.uvoptx
STM32-DEMO.uvproj.saved_uv4
STM32-DEMO.uvprojx
STM32-DEMO_LED-DEMO.dep
STM32-DEMO_Target 1.dep
STM32-DEMO_USART1-DEMO.dep
STM32-DEMO_uvopt.bak
STM32-DEMO_uvproj.bak
stm32f10x_conf.h
stm32f10x_it.c
stm32f10x_it.h
TIM2.c
TIM2.h
UltrasonicWave.c
UltrasonicWave.h
usart1.c
usart1.h