1、普通定時(shí)使用本文引用地址：http://www.biyoush.com/article/201611/321303.htm
#include"stm32f10x.h"
#include"time.h"
static Time_NVIC_Config(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0000);
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
NVIC_InitStructure.NVIC_IRQChannel = TIMx_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
static void Time_Config(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIMx,ENABLE);
//TIM_DeInit(TIM2);
TIM_TimeBaseInitStructure.TIM_Prescaler =(10000-1); //時(shí)鐘分頻系數(shù)
TIM_TimeBaseInitStructure.TIM_Period =(7200-1); //自動(dòng)重裝寄存器
TIM_TimeBaseInitStructure.TIM_CounterMode =TIM_CounterMode_Up; //向上計(jì)數(shù)模式
TIM_TimeBaseInitStructure.TIM_ClockDivision =0; //時(shí)鐘分割,這里不涉及
#if 0
TIM_TimeBaseInitStructure.TIM_RepetitionCounter; //This parameter is valid only for TIM1 and TIM8
#endif
TIM_TimeBaseInit(TIMx,&TIM_TimeBaseInitStructure); //配置參數(shù)
TIM_ClearITPendingBit(TIMx,TIM_IT_Update); //清除中斷標(biāo)示位
TIM_ITConfig(TIMx,TIM_IT_Update,ENABLE); //中斷配置
TIM_Cmd(TIMx,ENABLE); //啟動(dòng)定時(shí)器
}
void Time_Init(void)
{
Time_Config(); //定時(shí)器配置
Time_NVIC_Config(); //嵌套中斷向量初始化
}
2、PWM輸出
#include"stm32f10x.h"
#include"time.h"
#if 0
static Time_NVIC_Config(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0000);
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
NVIC_InitStructure.NVIC_IRQChannel = TIMx_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
#endif
void Time_OUT_PWM_GPIO_Config(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(TIMx_OUT_GPIO_RCC,ENABLE);
GPIO_InitStructure.GPIO_Pin =TIMx_OUT_Pin;
GPIO_InitStructure.GPIO_Mode =GPIO_Mode_AF_PP; //復(fù)用推免式輸出
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(TIMx_OUT_Port, &GPIO_InitStructure);
}
static void Time_OUT_PWM_Config(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIMx,ENABLE); //開啟時(shí)鐘
TIM_DeInit(TIM2);
TIM_TimeBaseInitStructure.TIM_Prescaler =(100-1); //時(shí)鐘分頻系數(shù)
TIM_TimeBaseInitStructure.TIM_Period =(1000-1); //自動(dòng)重裝寄存器 PWM頻率:72M/100/1000=720Hz
TIM_TimeBaseInitStructure.TIM_CounterMode =TIM_CounterMode_Up; //向上計(jì)數(shù)模式
TIM_TimeBaseInitStructure.TIM_ClockDivision =0; //時(shí)鐘分頻,這里不涉及
#ifdef Time1
TIM_TimeBaseInitStructure.TIM_RepetitionCounter; //This parameter is valid only for TIM1 and TIM8
#endif
TIM_TimeBaseInit(TIMx,&TIM_TimeBaseInitStructure); //配置參數(shù)
TIM_ClearITPendingBit(TIMx,TIM_IT_Update); //清除中斷標(biāo)示位
TIM_OCInitStructure.TIM_OCMode =TIM_OCMode_PWM1; //PWM1模式 OCx電平根據(jù)ARR與CCRx比較結(jié)果發(fā)生反轉(zhuǎn)
TIM_OCInitStructure.TIM_OutputState =TIM_OutputState_Enable; //輸出使能通道1
#ifdef Time1
TIM_OCInitStructure.TIM_OutputNState =;
#endif
TIM_OCInitStructure.TIM_Pulse =CCR1_VAL; //占空比800/1000
TIM_OCInitStructure.TIM_OCPolarity =TIM_OCPolarity_Low; //計(jì)數(shù)器值小于CCR值時(shí)輸出高電平
#ifdef Time1
TIM_OCInitStructure.TIM_OCNPolarity =;
TIM_OCInitStructure.TIM_OCIdleState =;
TIM_OCInitStructure.TIM_OCNIdleState =;
#endif
TIM_OC1Init(TIMx,&TIM_OCInitStructure);
TIM_OC1PreloadConfig(TIMx,TIM_OCPreload_Enable); //使能CCR1預(yù)裝載
TIM_OCInitStructure.TIM_OutputState =TIM_OutputState_Enable; //輸出使能通道2
TIM_OCInitStructure.TIM_Pulse =CCR2_VAL;
TIM_OC2Init(TIMx,&TIM_OCInitStructure);
TIM_OC2PreloadConfig(TIMx,TIM_OCPreload_Enable);
TIM_OCInitStructure.TIM_OutputState =TIM_OutputState_Enable; //輸出使能通道3
TIM_OCInitStructure.TIM_Pulse =CCR3_VAL;
TIM_OCInitStructure.TIM_OCPolarity =TIM_OCPolarity_High;
TIM_OC3Init(TIMx,&TIM_OCInitStructure);
TIM_OC3PreloadConfig(TIMx,TIM_OCPreload_Enable);
TIM_OCInitStructure.TIM_OutputState =TIM_OutputState_Enable; //輸出使能通道4
TIM_OCInitStructure.TIM_Pulse =CCR4_VAL;
TIM_OC4Init(TIMx,&TIM_OCInitStructure);
TIM_OC4PreloadConfig(TIMx,TIM_OCPreload_Enable);
TIM_ARRPreloadConfig(TIMx,ENABLE); //開啟ARR預(yù)裝載
TIM_Cmd(TIMx,ENABLE); //啟動(dòng)定時(shí)器
}
void Time_OUT_PWM_Init(void)
{
Time_OUT_PWM_GPIO_Config();
Time_OUT_PWM_Config(); //定時(shí)器配置
}
3、輸出比較模式
#include"stm32f10x.h"
#include"time.h"
static Time_NVIC_Config(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0000);
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
NVIC_InitStructure.NVIC_IRQChannel = TIMx_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
static void Time_OUT_PWM_GPIO_Config(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(TIMx_OUT_GPIO_RCC,ENABLE);
GPIO_InitStructure.GPIO_Pin =TIMx_OUT_Pin;
GPIO_InitStructure.GPIO_Mode =GPIO_Mode_AF_PP; //復(fù)用推免式輸出
GPIO_InitStructure.GPIO_Speed =GPIO_Speed_50MHz;
GPIO_Init(TIMx_OUT_Port, &GPIO_InitStructure);
}
static void Time_GPIO_Config(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD,ENABLE);
GPIO_InitStructure.GPIO_Pin =GPIO_Pin_1;
GPIO_InitStructure.GPIO_Mode =GPIO_Mode_Out_PP; //通用推免式輸出
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOD, &GPIO_InitStructure);
}
static void Time_OUT_PWM_Config(void)
{
TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
TIM_OCInitTypeDef TIM_OCInitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIMx,ENABLE); //開啟時(shí)鐘
TIM_DeInit(TIM2);
TIM_TimeBaseInitStructure.TIM_Prescaler =(100-1); //時(shí)鐘分頻系數(shù)
TIM_TimeBaseInitStructure.TIM_Period =(1000-1); //自動(dòng)重裝寄存器 PWM頻率:72M/100/1000=720Hz
TIM_TimeBaseInitStructure.TIM_CounterMode =TIM_CounterMode_Up; //向上計(jì)數(shù)模式
TIM_TimeBaseInitStructure.TIM_ClockDivision =0; //時(shí)鐘分頻,這里不涉及
#ifdef Time1
TIM_TimeBaseInitStructure.TIM_RepetitionCounter; //This parameter is valid only for TIM1 and TIM8
#endif
TIM_TimeBaseInit(TIMx,&TIM_TimeBaseInitStructure); //配置參數(shù)
TIM_ClearITPendingBit(TIMx,TIM_IT_Update); //清除中斷標(biāo)示位
TIM_OCInitStructure.TIM_OCMode =TIM_OCMode_Inactive; //ARR與CCRx相同時(shí)強(qiáng)制OCxREF為低
TIM_OCInitStructure.TIM_OutputState =TIM_OutputState_Enable; //輸出使能通道1
#ifdef Time1
TIM_OCInitStructure.TIM_OutputNState =;
#endif
TIM_OCInitStructure.TIM_Pulse =CCR1_VAL;
TIM_OCInitStructure.TIM_OCPolarity =TIM_OCPolarity_High; //OCx=!OCxREF _High OCx=OCxREF
#ifdef Time1
TIM_OCInitStructure.TIM_OCNPolarity =;
TIM_OCInitStructure.TIM_OCIdleState =;
TIM_OCInitStructure.TIM_OCNIdleState =;
#endif
TIM_OC1Init(TIMx,&TIM_OCInitStructure);
TIM_OC1PreloadConfig(TIMx,TIM_OCPreload_Enable); //使能CCR1預(yù)裝載
TIM_ITConfig(TIMx,TIM_IT_CC1,ENABLE); //使能OC1比較中斷
TIM_OCInitStructure.TIM_OCMode =TIM_OCMode_Active; //ARR與CCRx相同時(shí)強(qiáng)制OCxREF為高
TIM_OCInitStructure.TIM_OutputState =TIM_OutputState_Enable; //輸出使能通道2
TIM_OCInitStructure.TIM_Pulse =CCR2_VAL;
TIM_OCInitStructure.TIM_OCPolarity =TIM_OCPolarity_Low; //OCx=!OCxREF _High OCx=OCxREF
TIM_OC2Init(TIMx,&TIM_OCInitStructure);
TIM_OC2PreloadConfig(TIMx,TIM_OCPreload_Enable);
TIM_ITConfig(TIMx,TIM_IT_CC2,ENABLE);
TIM_OCInitStructure.TIM_OCMode =TIM_OCMode_Timing; //ARR與CCRx比較結(jié)果對(duì)OCxREF無效
TIM_OCInitStructure.TIM_OutputState =TIM_OutputState_Enable; //輸出使能通道3
TIM_OCInitStructure.TIM_Pulse =CCR3_VAL;
TIM_ITConfig(TIMx,TIM_IT_CC3,ENABLE);
TIM_OC3Init(TIMx,&TIM_OCInitStructure);
TIM_OC3PreloadConfig(TIMx,TIM_OCPreload_Enable);
TIM_OCInitStructure.TIM_OCMode =TIM_OCMode_PWM1; //ARR與CCRx比較結(jié)果對(duì)OCxREF采用PWM1模式
TIM_OCInitStructure.TIM_OutputState =TIM_OutputState_Enable; //輸出使能通道4
TIM_OCInitStructure.TIM_Pulse =CCR4_VAL;
//TIM_ITConfig(TIMx,TIM_IT_CC4,ENABLE); //PWM就沒有必要設(shè)置中斷 當(dāng)然也可以在中斷里面改變占空比
TIM_OC4Init(TIMx,&TIM_OCInitStructure);
TIM_OC4PreloadConfig(TIMx,TIM_OCPreload_Enable);
TIM_ARRPreloadConfig(TIMx,ENABLE); //開啟ARR預(yù)裝載
TIM_Cmd(TIMx,ENABLE); //啟動(dòng)定時(shí)器
}
void Time_OUT_PWM_Init(void)
{
Time_OUT_PWM_GPIO_Config();
Time_GPIO_Config();
Time_NVIC_Config();
Time_OUT_PWM_Config(); //定時(shí)器配置
}
4、PWMI模式
#include"stm32f10x.h"
#include"time.h"
static Time_NVIC_Config(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0000);
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_1);
NVIC_InitStructure.NVIC_IRQChannel = TIMx_IRQn;
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
加入技術(shù)交流群
評(píng)論