#include?“input.h“
u8?TIM4CH1_CAPTURE_STA;?//輸入捕獲狀態(tài)?
u16?TIM4CH1_CAPTURE_LAST_VAL;//上一次輸入捕獲值
u16?TIM4CH1_CAPTURE_VAL;//輸入捕獲值

u8?TIM4CH2_CAPTURE_STA;?//輸入捕獲狀態(tài)?
u16?TIM4CH2_CAPTURE_LAST_VAL;//上一次輸入捕獲值
u16?TIM4CH2_CAPTURE_VAL;//輸入捕獲值

u8?TIM4CH3_CAPTURE_STA;?//輸入捕獲狀態(tài)?
u16?TIM4CH3_CAPTURE_LAST_VAL;//上一次輸入捕獲值
u16?TIM4CH3_CAPTURE_VAL;//輸入捕獲值

/*******************************************************************************
*?函?數(shù)?名?????????:?input_init
*?函數(shù)功能		???:?輸入捕獲配置初始化	???定時器4通道123輸入捕獲配置?
*?輸????入?????????:?無
*?輸????出?????????:?無
*******************************************************************************/
void?input_init（）
{
	TIM_TimebaseInitTypeDef?TIM_TimebaseInitStructure;//聲明一個結(jié)構(gòu)體變量，用來初始化定時器
	TIM_ICInitTypeDef?TIM4_ICInitStructure;

	NVIC_InitTypeDef?NVIC_InitStructure;

	/*?開啟定時器5時鐘?*/
	RCC_APB1PeriphClockCmd（RCC_APB1Periph_TIM4ENABLE）;	?//使能TIM4時鐘

	TIM_ClearITPendingBit（TIM4TIM_IT_Update|TIM_IT_CC1|TIM_IT_CC2|TIM_IT_CC3）;?//清除中斷和捕獲標(biāo)志位

	TIM_TimebaseInitStructure.TIM_Period?=?0xffff;	?//設(shè)定計數(shù)器自動重裝值?	
	TIM_TimebaseInitStructure.TIM_Prescaler?=?0;???//以1Mhz的頻率計數(shù)?一次即是1us
	TIM_TimebaseInitStructure.TIM_ClockDivision?=?TIM_CKD_DIV1;	??//設(shè)置時鐘分割:TDTS?=?Tck_tim
	TIM_TimebaseInitStructure.TIM_CounterMode?=?TIM_CounterMode_Up;	?//TIM向上計數(shù)模式
	TIM_TimebaseInit（TIM4&TIM_TimebaseInitStructure）;//根據(jù)TIM_TimebaseInitStruct中指定的參數(shù)初始化TIMx的時間基數(shù)單位
	
	TIM4_ICInitStructure.TIM_Channel?=?TIM_Channel_1;?//選擇輸入端?IC1映射到TI1上?
	TIM4_ICInitStructure.TIM_ICPolarity?=?TIM_ICPolarity_Rising;?//上升沿捕獲?
	TIM4_ICInitStructure.TIM_ICSelection?=?TIM_ICSelection_DirectTI;?//映射到TI1上?
	TIM4_ICInitStructure.TIM_ICPrescaler?=?TIM_ICPSC_DIV1;?//配置輸入分頻不分頻?
	TIM4_ICInitStructure.TIM_ICFilter?=?0x00;?//IC1F=0000?配置輸入濾波器?不濾波?
	TIM_ICInit（TIM4?&TIM4_ICInitStructure）;?//初始化TIM4輸入捕獲通道1	
	
	TIM4_ICInitStructure.TIM_Channel?=?TIM_Channel_2;?//選擇輸入端?IC1映射到TI1上?
	TIM_ICInit（TIM4?&TIM4_ICInitStructure）;?//初始化TIM4輸入捕獲通道1	
	
	TIM4_ICInitStructure.TIM_Channel?=?TIM_Channel_3;?//選擇輸入端?IC1映射到TI1上?
	TIM_ICInit（TIM4?&TIM4_ICInitStructure）;?//初始化TIM4輸入捕獲通道1	
	
	//中斷分組初始化
	NVIC_PriorityGroupConfig（NVIC_PriorityGroup_1）;
	NVIC_InitStructure.NVIC_IRQChannel=TIM4_IRQn;	//打開TIM4的全局中斷
	NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0;	//搶占優(yōu)先級為0
	NVIC_InitStructure.NVIC_IRQChannelSubPriority=1;?//響應(yīng)優(yōu)先級為1
	NVIC_InitStructure.NVIC_IRQChannelCmd?=?ENABLE;	??//使能
	NVIC_Init（&NVIC_InitStructure）;
	
	TIM_Cmd（TIM4ENABLE）;?//使能或者失能TIMx外設(shè)
	TIM_ITConfig（TIM4?TIM_IT_Update|TIM_IT_CC1|TIM_IT_CC2|TIM_IT_CC3?ENABLE?）;	//使能或者失能指定的TIM中斷
		
}

void?HC_SR04_init（）	???//
{
	GPIO_InitTypeDef?GPIO_InitStructure;	??//聲明一個結(jié)構(gòu)體變量，用來初始化GPIO

	SystemInit（）;
	/*?開啟GPIO時鐘?*/
	RCC_APB2PeriphClockCmd（RCC_APB2Periph_GPIOBENABLE）;

	/*??配置GPIO的模式和IO口?*/
	GPIO_InitStructure.GPIO_Pin=Echo1|Echo2|Echo3;	???//選擇你要設(shè)置的IO口
	GPIO_InitStructure.GPIO_Mode=GPIO_Mode_IPD;//上拉輸入??
	GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;	???//設(shè)置傳輸速率
	GPIO_Init（GPIOB&GPIO_

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????8494??2018-03-12?15:58??工程模板\APP\input\input.c

?????文件????????797??2017-09-06?09:11??工程模板\APP\input\input.h

?????文件???????3169??2018-03-12?15:59??工程模板\APP\printf\printf.c

?????文件????????246??2017-08-06?19:40??工程模板\APP\printf\printf.h

?????文件???????2025??2015-05-29?17:20??工程模板\APP\PWM\pwm.c

?????文件?????????94??2014-12-13?15:09??工程模板\APP\PWM\pwm.h

?????文件???????1314??2015-05-28?11:25??工程模板\APP\SysTick\systick.c

?????文件????????121??2014-12-09?16:09??工程模板\APP\SysTick\systick.h

?????文件???????6956??2015-12-10?17:06??工程模板\DebugConfig\Target_1_STM32F103ZE.dbgconf

?????文件????????497??2015-06-08?10:30??工程模板\Jlink?Regs?CM3.txt

?????文件????????285??2014-12-11?16:01??工程模板\JlinkSettings.ini

?????文件????????399??2011-04-23?10:24??工程模板\keilkilll.bat

?????文件??????17273??2010-06-07?10:25??工程模板\Libraries\CMSIS\CM3\CoreSupport\core_cm3.c

?????文件??????85714??2011-02-09?14:59??工程模板\Libraries\CMSIS\CM3\CoreSupport\core_cm3.h

?????文件??????15766??2011-03-10?10:52??工程模板\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\arm\startup_stm32f10x_cl.s

?????文件??????15503??2011-03-10?10:52??工程模板\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\arm\startup_stm32f10x_hd.s

?????文件??????15692??2011-03-10?10:52??工程模板\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\arm\startup_stm32f10x_hd_vl.s

?????文件??????12376??2011-03-10?10:52??工程模板\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\arm\startup_stm32f10x_ld.s

?????文件??????13656??2011-03-10?10:52??工程模板\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\arm\startup_stm32f10x_ld_vl.s

?????文件??????12765??2011-03-10?10:52??工程模板\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\arm\startup_stm32f10x_md.s

?????文件??????14073??2011-03-10?10:51??工程模板\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\arm\startup_stm32f10x_md_vl.s

?????文件??????15955??2011-03-10?10:51??工程模板\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\arm\startup_stm32f10x_xl.s

?????文件??????13072??2011-03-10?10:52??工程模板\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\gcc_ride7\startup_stm32f10x_cl.s

?????文件??????13160??2011-03-10?10:52??工程模板\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\gcc_ride7\startup_stm32f10x_hd.s

?????文件??????12482??2011-03-10?10:52??工程模板\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\gcc_ride7\startup_stm32f10x_hd_vl.s

?????文件???????9814??2011-03-10?10:52??工程模板\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\gcc_ride7\startup_stm32f10x_ld.s

?????文件??????10562??2011-03-10?10:52??工程模板\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\gcc_ride7\startup_stm32f10x_ld_vl.s

?????文件??????10269??2011-03-10?10:52??工程模板\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\gcc_ride7\startup_stm32f10x_md.s

?????文件??????11058??2011-03-10?10:52??工程模板\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\gcc_ride7\startup_stm32f10x_md_vl.s

?????文件??????13261??2011-03-10?10:52??工程模板\Libraries\CMSIS\CM3\DeviceSupport\ST\STM32F10x\startup\gcc_ride7\startup_stm32f10x_xl.s

............此處省略112個文件信息