1、普通定时使用本文引用地址：//m.amcfsurvey.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_TimeBaseInitTypeDefTIM_TimeBaseInitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIMx,ENABLE);
//TIM_DeInit(TIM2);
TIM_TimeBaseInitStructure.TIM_Prescaler=(10000-1);//时钟分频系数
TIM_TimeBaseInitStructure.TIM_Period=(7200-1);//自动重装寄存器
TIM_TimeBaseInitStructure.TIM_CounterMode=TIM_CounterMode_Up;//向上计数模式
TIM_TimeBaseInitStructure.TIM_ClockDivision=0;//时钟分割,这里不涉及
#if 0
TIM_TimeBaseInitStructure.TIM_RepetitionCounter;//This parameter is valid only for TIM1 and TIM8
#endif
TIM_TimeBaseInit(TIMx,&TIM_TimeBaseInitStructure);//配置参数
TIM_ClearITPendingBit(TIMx,TIM_IT_Update);//清除中断标示位
TIM_ITConfig(TIMx,TIM_IT_Update,ENABLE);//中断配置
TIM_Cmd(TIMx,ENABLE);//启动定时器
}
void Time_Init(void)
{
Time_Config();//定时器配置
Time_NVIC_Config();//嵌套中断向量初始化
}
2、PWM输出
#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_InitTypeDefGPIO_InitStructure;
RCC_APB2PeriphClockCmd(TIMx_OUT_GPIO_RCC,ENABLE);
GPIO_InitStructure.GPIO_Pin=TIMx_OUT_Pin;
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP;//复用推免式输出
GPIO_InitStructure.GPIO_Speed= GPIO_Speed_50MHz;
GPIO_Init(TIMx_OUT_Port, &GPIO_InitStructure);
}
static void Time_OUT_PWM_Config(void)
{
TIM_TimeBaseInitTypeDefTIM_TimeBaseInitStructure;
TIM_OCInitTypeDefTIM_OCInitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIMx,ENABLE);//开启时钟
TIM_DeInit(TIM2);
TIM_TimeBaseInitStructure.TIM_Prescaler=(100-1);//时钟分频系数
TIM_TimeBaseInitStructure.TIM_Period=(1000-1);//自动重装寄存器PWM频率:72M/100/1000=720Hz
TIM_TimeBaseInitStructure.TIM_CounterMode=TIM_CounterMode_Up;//向上计数模式
TIM_TimeBaseInitStructure.TIM_ClockDivision=0;//时钟分频,这里不涉及
#ifdef Time1
TIM_TimeBaseInitStructure.TIM_RepetitionCounter;//This parameter is valid only for TIM1 and TIM8
#endif
TIM_TimeBaseInit(TIMx,&TIM_TimeBaseInitStructure);//配置参数
TIM_ClearITPendingBit(TIMx,TIM_IT_Update);//清除中断标示位
TIM_OCInitStructure.TIM_OCMode=TIM_OCMode_PWM1;//PWM1模式OCx电平根据ARR与CCRx比较结果发生反转
TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;//输出使能通道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;//计数器值小于CCR值时输出高电平
#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预装载
TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;//输出使能通道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;//输出使能通道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;//输出使能通道4
TIM_OCInitStructure.TIM_Pulse=CCR4_VAL;
TIM_OC4Init(TIMx,&TIM_OCInitStructure);
TIM_OC4PreloadConfig(TIMx,TIM_OCPreload_Enable);
TIM_ARRPreloadConfig(TIMx,ENABLE);//开启ARR预装载
TIM_Cmd(TIMx,ENABLE);//启动定时器
}
void Time_OUT_PWM_Init(void)
{
Time_OUT_PWM_GPIO_Config();
Time_OUT_PWM_Config();//定时器配置
}
3、输出比较模式
#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_InitTypeDefGPIO_InitStructure;
RCC_APB2PeriphClockCmd(TIMx_OUT_GPIO_RCC,ENABLE);
GPIO_InitStructure.GPIO_Pin=TIMx_OUT_Pin;
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP;//复用推免式输出
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(TIMx_OUT_Port, &GPIO_InitStructure);
}
static void Time_GPIO_Config(void)
{
GPIO_InitTypeDefGPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD,ENABLE);
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_1;
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_Out_PP;//通用推免式输出
GPIO_InitStructure.GPIO_Speed= GPIO_Speed_50MHz;
GPIO_Init(GPIOD, &GPIO_InitStructure);
}
static void Time_OUT_PWM_Config(void)
{
TIM_TimeBaseInitTypeDefTIM_TimeBaseInitStructure;
TIM_OCInitTypeDefTIM_OCInitStructure;
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIMx,ENABLE);//开启时钟
TIM_DeInit(TIM2);
TIM_TimeBaseInitStructure.TIM_Prescaler=(100-1);//时钟分频系数
TIM_TimeBaseInitStructure.TIM_Period=(1000-1);//自动重装寄存器PWM频率:72M/100/1000=720Hz
TIM_TimeBaseInitStructure.TIM_CounterMode=TIM_CounterMode_Up;//向上计数模式
TIM_TimeBaseInitStructure.TIM_ClockDivision=0;//时钟分频,这里不涉及
#ifdef Time1
TIM_TimeBaseInitStructure.TIM_RepetitionCounter;//This parameter is valid only for TIM1 and TIM8
#endif
TIM_TimeBaseInit(TIMx,&TIM_TimeBaseInitStructure);//配置参数
TIM_ClearITPendingBit(TIMx,TIM_IT_Update);//清除中断标示位
TIM_OCInitStructure.TIM_OCMode=TIM_OCMode_Inactive;//ARR与CCRx相同时强制OCxREF为低
TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;//输出使能通道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预装载
TIM_ITConfig(TIMx,TIM_IT_CC1,ENABLE);//使能OC1比较中断
TIM_OCInitStructure.TIM_OCMode=TIM_OCMode_Active;//ARR与CCRx相同时强制OCxREF为高
TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;//输出使能通道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与CCRx比较结果对OCxREF无效
TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;//输出使能通道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与CCRx比较结果对OCxREF采用PWM1模式
TIM_OCInitStructure.TIM_OutputState=TIM_OutputState_Enable;//输出使能通道4
TIM_OCInitStructure.TIM_Pulse=CCR4_VAL;
//TIM_ITConfig(TIMx,TIM_IT_CC4,ENABLE);//PWM就没有必要设置中断 当然也可以在中断里面改变占空比
TIM_OC4Init(TIMx,&TIM_OCInitStructure);
TIM_OC4PreloadConfig(TIMx,TIM_OCPreload_Enable);
TIM_ARRPreloadConfig(TIMx,ENABLE);//开启ARR预装载
TIM_Cmd(TIMx,ENABLE);//启动定时器
}
void Time_OUT_PWM_Init(void)
{
Time_OUT_PWM_GPIO_Config();
Time_GPIO_Config();
Time_NVIC_Config();
Time_OUT_PWM_Config();//定时器配置
}
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);
}
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