WDFJKEY/source/user/mapp_time.c

//==================================================================
//
//	Filename: mapp_time.c
//	Description: External Input driver.
//
//------------------------------------------------------------------
//
// version:
// date: 23:54pm, 08.Apr.2012, by Sirius
//	Description:
//
//------------------------------------------------------------------
//==================================================================

/*------------------------------------------------------------------------------
 *						I N C L U D E
 *------------------------------------------------------------------------------*/
#include "stm32f0xx.h"
#include "general.h"
#include "main.h"
#include "mapp_gpio.h"
#include "mapp_time.h"
#include "mapp_arm.h"
#include "mapp_msg.h"


/*------------------------------------------------------------------------------
 *						D E F I N E
 *------------------------------------------------------------------------------*/


/*------------------------------------------------------------------------------
 *						S T R U C T
 *------------------------------------------------------------------------------*/

/*------------------------------------------------------------------------------
 *						S T A T I C - V A R I A B L E S
 *------------------------------------------------------------------------------*/


/*------------------------------------------------------------------------------
 *						G L O B A L
 *------------------------------------------------------------------------------*/

/*------------------------------------------------------------------------------
 *						P R O T O T Y P E
 *------------------------------------------------------------------------------*/


//----------------------------------------------------------------------
void TIM3_PWM_Init(void)
{
	TIM_TimeBaseInitTypeDef  TIM_TimeBaseInitStructure;

	TIM_OCInitTypeDef        TIM_OCInitStructure;

	RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3,ENABLE);

	
	TIM_DeInit(TIM3);

	//TIM_Prescaler:48,TIM_Period:20000 周期20ms

	TIM_TimeBaseInitStructure.TIM_Prescaler = 20000;           //定时器周期

	TIM_TimeBaseInitStructure.TIM_Period = 1000;                //0~65535 装载值

	TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;

	TIM_TimeBaseInitStructure.TIM_ClockDivision = TIM_CKD_DIV1;

	TIM_TimeBaseInit(TIM3,&TIM_TimeBaseInitStructure);           

	TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;

	TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable;

	TIM_OCInitStructure.TIM_Pulse = 0 ;                                //预设值

	TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;

	TIM_OC1Init(TIM3,&TIM_OCInitStructure);

	TIM_OC1PreloadConfig(TIM3,TIM_OCPreload_Enable);

	TIM_CtrlPWMOutputs(TIM3, ENABLE);

   TIM_ITConfig(TIM3,TIM_IT_CC1,ENABLE);

	//使能标志位CC1.CC2.CC3.CC4

	TIM_Cmd(TIM3,ENABLE);


}





/*------------------------------- E O F ----------------------------------------*/