【经验分享】STM32 通用定时器的几种配置方式

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STMCU小助手发布时间：2022-1-27 00:18

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文章简介:	STM32 通用定时器的几种配置方式

//------------------------------------------------------------------------------: j1 n6 P* v7 G, o0 i
// 1、普通定时使用
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#include"stm32f10x.h"! ?3 W, |0 ]1 |5 t
#include"time.h"
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static Time_NVIC_Config( void ): `8 r |8 h7 a" J2 J& J
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NVIC_InitTypeDef NVIC_InitStructure;) a/ j1 r4 y/ J; U
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NVIC_SetVectorTable( NVIC_VectTab_FLASH, 0x0000 );, p! ?: b+ {" ?+ \0 y i; w/ B
NVIC_PriorityGroupConfig( NVIC_PriorityGroup_1 );
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NVIC_InitStructure.NVIC_IRQChannel = TIMx_IRQn;: u6 ? S1 S# [2 N& o9 `, T3 B' @
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 0;8 u5 W$ q. O- h4 B* I1 F6 `
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
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NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
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NVIC_Init( &NVIC_InitStructure );' L0 O+ f; s3 J1 A# ]+ f4 w
}
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static void Time_Config( void )
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TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
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RCC_APB1PeriphClockCmd( RCC_APB1Periph_TIMx, ENABLE );5 U+ k6 \3 Y9 X9 L! U
//TIM_DeInit(TIM2);, O7 I* d2 K! C8 Y9 v
TIM_TimeBaseInitStructure.TIM_Prescaler = ( 10000 - 1 ); //时钟分频系数, T3 l3 b! P0 d
TIM_TimeBaseInitStructure.TIM_Period = ( 7200 - 1 ); //自动重装寄存器
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TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up; //向上计数模式# M; m" O$ W6 T6 I- s1 M% T7 l* x
TIM_TimeBaseInitStructure.TIM_ClockDivision = 0; //时钟分割,这里不涉及
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#if 0
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TIM_TimeBaseInitStructure.TIM_RepetitionCounter; 7 ^1 R$ I1 F. \. T7 l2 k- H6 x
//This parameter is valid only for TIM1 and TIM8& Q7 F4 E9 J5 }8 r% ~
#endif
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TIM_TimeBaseInit( TIMx, &TIM_TimeBaseInitStructure ); //配置参数
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TIM_ClearITPendingBit( TIMx, TIM_IT_Update ); //清除中断标示位
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TIM_ITConfig( TIMx, TIM_IT_Update, ENABLE ); //中断配置6 |7 p1 u$ n, J0 \, K
TIM_Cmd( TIMx, ENABLE ); //启动定时器
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}; D; J6 q$ p1 `% Y! {! p( w
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void Time_Init( void )3 k8 z; ]/ }$ U0 a7 h4 J! w
{
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Time_Config( ); //定时器配置
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Time_NVIC_Config( ); //嵌套中断向量初始化
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//------------------------------------------------------------------------------- M* B) t5 z$ A& U2 v! W
// 2、PWM输出3 i3 l; x7 k# R3 |( T+ W+ y
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#include"stm32f10x.h"
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#include"time.h"" z9 {) F( k7 z
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#if 1# L# R: V, @8 I: ?$ C; c
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static Time_NVIC_Config( void )/ O! r1 B5 }/ g1 Y! K. ^- v' s
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NVIC_InitTypeDef NVIC_InitStructure;& o- x8 D( W% s1 S/ Q& o: m
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NVIC_SetVectorTable( NVIC_VectTab_FLASH, 0x0000 );2 \9 M, C+ Q. g- Q! W( o u
NVIC_PriorityGroupConfig( NVIC_PriorityGroup_1 );
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NVIC_InitStructure.NVIC_IRQChannel = TIMx_IRQn;4 @0 j3 V* C n& o, D5 Z
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;) W+ d5 |, f" {$ L" L O
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;6 r9 [/ O5 d' N/ L
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;9 ^6 u; H6 c8 E" j" _6 o
NVIC_Init( &NVIC_InitStructure );
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#endif6 @3 J. x+ M' J1 O5 ?* w* s
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void Time_OUT_PWM_GPIO_Config( void )
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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RCC_APB2PeriphClockCmd( TIMx_OUT_GPIO_RCC, ENABLE );
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GPIO_InitStructure.GPIO_Pin = TIMx_OUT_Pin;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //复用推免式输出
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;3 Z& h( j( R8 s# i9 m3 V' e% h
GPIO_Init( TIMx_OUT_Port, &GPIO_InitStructure );4 ?4 r8 U* D6 v3 J* H
}
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static void Time_OUT_PWM_Config( void )
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{, F8 s9 y0 ^3 e* e2 i
TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;6 N( d9 t x5 r0 a% d
TIM_OCInitTypeDef TIM_OCInitStructure;5 W. h& H* i/ E+ E9 r
RCC_APB1PeriphClockCmd( RCC_APB1Periph_TIMx, ENABLE ); //开启时钟% a+ W; s2 O! f1 [! o
TIM_DeInit( TIM2 );
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TIM_TimeBaseInitStructure.TIM_Prescaler = ( 100 - 1 ); //时钟分频系数 B- L) R( m" u5 b8 t
TIM_TimeBaseInitStructure.TIM_Period = ( 1000 - 1 ); //自动重装寄存器 PWM频率:72M/100/1000=720Hz
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TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up; //向上计数模式) s+ p$ j6 x- I
TIM_TimeBaseInitStructure.TIM_ClockDivision = 0; //时钟分频,这里不涉及
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#ifdef Time1) r) A6 L$ ?( h
TIM_TimeBaseInitStructure.TIM_RepetitionCounter; //This parameter is valid only for TIM1 and TIM8
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#endif' |+ q7 k3 z# u9 f# z) y$ G5 v
TIM_TimeBaseInit( TIMx, &TIM_TimeBaseInitStructure ); //配置参数
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TIM_ClearITPendingBit( TIMx, TIM_IT_Update ); //清除中断标示位
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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7 v6 D# Y, x; d
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //输出使能通道1 P% i. K$ f; a& L+ m0 {
#ifdef Time1$ d8 K: c- B' C' v% Y) B
TIM_OCInitStructure.TIM_OutputNState =;
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#endif0 I2 j3 A3 T! U" W0 A
TIM_OCInitStructure.TIM_Pulse = CCR1_VAL; //占空比800/1000* I) w" E$ Q9 C5 L
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; //计数器值小于CCR值时输出高电平) K% E) Y/ q* L# v
#ifdef Time17 M0 i0 U; F) `" u
TIM_OCInitStructure.TIM_OCNPolarity =;
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TIM_OCInitStructure.TIM_OCIdleState =;
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TIM_OCInitStructure.TIM_OCNIdleState =;
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#endif
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TIM_OC1Init( TIMx, &TIM_OCInitStructure );; }! X$ P4 C. }9 ?# F
TIM_OC1PreloadConfig( TIMx, TIM_OCPreload_Enable ); //使能CCR1预装载2 J; ^; Z: R: J& e) ]
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TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //输出使能通道2
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TIM_OCInitStructure.TIM_Pulse = CCR2_VAL;
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TIM_OC2Init( TIMx, &TIM_OCInitStructure );" `2 } S0 ]- J) S5 b3 D
TIM_OC2PreloadConfig( TIMx, TIM_OCPreload_Enable );1 ~8 B& I* ]# B" U4 H& x
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TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //输出使能通道3
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TIM_OCInitStructure.TIM_Pulse = CCR3_VAL;6 q" s& I7 Z4 {6 c* Y0 V1 E, @
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High;; G1 Y: g' U, W( p: c. s2 _& v
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TIM_OC3Init( TIMx, &TIM_OCInitStructure );8 h0 `/ F2 }0 t5 s/ \3 X
TIM_OC3PreloadConfig( TIMx, TIM_OCPreload_Enable );: { c( G0 u: r: U! A; W6 L
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TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //输出使能通道4
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TIM_OCInitStructure.TIM_Pulse = CCR4_VAL; q2 N; X! @7 A8 w
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TIM_OC4Init( TIMx, &TIM_OCInitStructure );
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TIM_OC4PreloadConfig( TIMx, TIM_OCPreload_Enable );
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TIM_ARRPreloadConfig( TIMx, ENABLE ); //开启ARR预装载
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TIM_Cmd( TIMx, ENABLE ); //启动定时器
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void Time_OUT_PWM_Init( void )9 p7 p* c$ L+ I' U7 {
{
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Time_OUT_PWM_GPIO_Config( );
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Time_OUT_PWM_Config( ); //定时器配置6 o1 h6 s+ s7 u$ I. y% _. A6 n
}
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//------------------------------------------------------------------------------' `& g# t6 K3 W
// 3、输出比较模式
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#include"stm32f10x.h"
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#include"time.h") X6 Q( J: W9 M4 a N
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static Time_NVIC_Config( void )
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{
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NVIC_InitTypeDef NVIC_InitStructure;7 q+ b9 W& z$ O* f
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NVIC_SetVectorTable( NVIC_VectTab_FLASH, 0x0000 );- q2 l6 O% q) p- S+ H# c
NVIC_PriorityGroupConfig( NVIC_PriorityGroup_1 );! Z* D X n0 q
NVIC_InitStructure.NVIC_IRQChannel = TIMx_IRQn; K7 a, w% {) Q+ H
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;4 B2 t% u) r' I
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
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NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
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NVIC_Init( &NVIC_InitStructure );2 l% x5 s7 _; Q0 b' n
}
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static void Time_OUT_PWM_GPIO_Config( void )
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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RCC_APB2PeriphClockCmd( TIMx_OUT_GPIO_RCC, ENABLE );3 \: }/ r7 A/ a" ]$ s
GPIO_InitStructure.GPIO_Pin = TIMx_OUT_Pin;" H v/ E, x2 f8 u- I
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //复用推免式输出# `. i" @2 |& M, x* r s P! \1 r) D
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init( TIMx_OUT_Port, &GPIO_InitStructure );' v5 s5 ^6 j1 O; _/ G6 @* `
}
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static void Time_GPIO_Config( void )3 |/ U! }! R7 R9 N7 A# e; l* W
{
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GPIO_InitTypeDef GPIO_InitStructure;: s' \7 u6 o$ ^ ]9 I# D+ o
RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOD, ENABLE );
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GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //通用推免式输出
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init( GPIOD, &GPIO_InitStructure );
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static void Time_OUT_PWM_Config( void )
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{) a9 w6 n, o: r$ X1 s
TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;+ O% V) s5 ^ m* n0 }& }3 ]% h
TIM_OCInitTypeDef TIM_OCInitStructure;
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RCC_APB1PeriphClockCmd( RCC_APB1Periph_TIMx, ENABLE ); //开启时钟
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TIM_DeInit( TIM2 );$ U3 \4 T6 d, d
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TIM_TimeBaseInitStructure.TIM_Prescaler = ( 100 - 1 ); //时钟分频系数
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TIM_TimeBaseInitStructure.TIM_Period = ( 1000 - 1 ); //自动重装寄存器 PWM频率:72M/100/1000=720Hz; P' ?# E1 m. k6 [/ V
TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up; //向上计数模式! j. ^0 \% }4 w2 R$ e
TIM_TimeBaseInitStructure.TIM_ClockDivision = 0; //时钟分频,这里不涉及
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#ifdef Time1
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TIM_TimeBaseInitStructure.TIM_RepetitionCounter; //This parameter is valid only for TIM1 and TIM86 B. `" O- y' X8 o& d
#endif; A' M ^9 z; H( ] q
TIM_TimeBaseInit( TIMx, &TIM_TimeBaseInitStructure ); //配置参数6 Q, i$ p! {1 ^6 R' q0 g& c
TIM_ClearITPendingBit( TIMx, TIM_IT_Update ); //清除中断标示位8 } j: Y; c8 i& C% L. h$ A# K) P3 ]" @
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TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Inactive; //ARR与CCRx相同时强制OCxREF为低
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TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //输出使能通道1
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#ifdef Time18 Z5 E" T6 F1 N9 K
TIM_OCInitStructure.TIM_OutputNState =;7 d2 f0 m D& e$ h3 S- Q% p. }
#endif
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TIM_OCInitStructure.TIM_Pulse = CCR1_VAL;
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TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; //OCx=!OCxREF _High OCx=OCxREF+ Q6 f% {' ]1 w4 I; g+ M
#ifdef Time1
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TIM_OCInitStructure.TIM_OCNPolarity =;: ~- u- I' n7 e5 t9 n0 G
TIM_OCInitStructure.TIM_OCIdleState =;7 ?# }. U) x- ^
TIM_OCInitStructure.TIM_OCNIdleState =;+ }& J8 `' a9 G- D
#endif
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TIM_OC1Init( TIMx, &TIM_OCInitStructure );
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TIM_OC1PreloadConfig( TIMx, TIM_OCPreload_Enable ); //使能CCR1预装载
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TIM_ITConfig( TIMx, TIM_IT_CC1, ENABLE ); //使能OC1比较中断
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TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Active; //ARR与CCRx相同时强制OCxREF为高
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TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //输出使能通道2+ z0 G) J0 q7 k& m1 h! ~3 U
TIM_OCInitStructure.TIM_Pulse = CCR2_VAL;
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TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_Low; //OCx=!OCxREF _High OCx=OCxREF & l3 H7 {# g3 A: Z% P
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TIM_OC2Init( TIMx, &TIM_OCInitStructure );
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TIM_OC2PreloadConfig( TIMx, TIM_OCPreload_Enable );; ~/ ?" U1 }2 N. o) ~+ C9 S
TIM_ITConfig( TIMx, TIM_IT_CC2, ENABLE );% U x3 V- @# h6 I" z- O) o& K
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TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_Timing; //ARR与CCRx比较结果对OCxREF无效8 k& ?8 k; l& |7 U
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //输出使能通道3( ]9 }$ k1 J) A& A) n3 d
TIM_OCInitStructure.TIM_Pulse = CCR3_VAL;$ X$ d. u: b" D# v: B t
TIM_ITConfig( TIMx, TIM_IT_CC3, ENABLE );$ {% P1 [' p" B0 E6 c6 n" R& O9 j
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TIM_OC3Init( TIMx, &TIM_OCInitStructure );
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TIM_OC3PreloadConfig( TIMx, TIM_OCPreload_Enable );
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TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; //ARR与CCRx比较结果对OCxREF采用PWM1模式
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TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //输出使能通道4
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TIM_OCInitStructure.TIM_Pulse = CCR4_VAL;
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//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0 w8 g8 N. Y$ c
TIM_OC4Init( TIMx, &TIM_OCInitStructure );4 `1 L, S. ]0 e Y0 q- i* ?
TIM_OC4PreloadConfig( TIMx, TIM_OCPreload_Enable );
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TIM_ARRPreloadConfig( TIMx, ENABLE ); //开启ARR预装载' E# Z: {+ N8 j6 i5 S7 N8 i+ C+ E: D
TIM_Cmd( TIMx, ENABLE ); //启动定时器1 H* K5 K% E) u3 m
}
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void Time_OUT_PWM_Init( void )
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Time_OUT_PWM_GPIO_Config( );
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Time_GPIO_Config( );6 K2 _8 v9 l# U' P3 E w4 l
Time_NVIC_Config( );
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Time_OUT_PWM_Config( ); //定时器配置$ w1 b6 U8 l+ r# R) W c! v
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//------------------------------------------------------------------------------' V$ y/ ]8 {# p+ b; |& A
// 4、PWMI模式! V. w( L3 [: D- ^% H/ H- O3 d6 |! |
#include"stm32f10x.h"( t3 k2 ^! G" L
#include"time.h"
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static Time_NVIC_Config( void )
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{
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NVIC_InitTypeDef NVIC_InitStructure;
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# H6 d$ r f7 r- n5 L
NVIC_SetVectorTable( NVIC_VectTab_FLASH, 0x0000 );: @& H, U( Y. M) L/ i' g
NVIC_PriorityGroupConfig( NVIC_PriorityGroup_1 );) S2 i# L( k9 Q1 C: x' z
NVIC_InitStructure.NVIC_IRQChannel = TIMx_IRQn;8 n/ N8 {4 g' }
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
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NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;$ J) Y) M; _2 i3 P+ k3 P# a) C
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;# p! U3 q6 {6 W: @- x
NVIC_Init( &NVIC_InitStructure );9 C2 W; U( e" ^0 }0 T0 C( Z
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static void Time_IN_PWM_GPIO_Config( void )8 u/ v" I% \7 [
{/ d9 I& ?; A4 c/ [
GPIO_InitTypeDef GPIO_InitStructure;3 P& i; N! g6 E3 c2 }4 y
RCC_APB2PeriphClockCmd( TIMx_IN_GPIO_RCC, ENABLE );
6 }6 x& @( @& L* n* i
GPIO_InitStructure.GPIO_Pin = TIMx_IN_Pin; B7 o! I2 {# g0 Z, i# Q+ D7 N
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //浮空输入模式2 R, e8 B" d! w% j$ B0 D- w
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
! e7 y0 @* L; z8 \* p" w
GPIO_Init( TIMx_IN_Port, &GPIO_InitStructure );
% i' `& Q% h/ N3 u6 H
}2 w+ ^5 k$ Y' _% n# Y( h4 K; ~5 L3 k
9 g( P, Z2 j9 W Q7 p
static void Time_IN_PWM_Config( void )5 J+ r7 |* q9 _
{* m2 o) x4 s; I+ c0 m7 r
#if 07 {4 d1 G1 U6 y2 a
TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;' S: _% {2 d4 ~+ M& A
#endif) P) b% \/ @* m# \
TIM_ICInitTypeDef TIM_ICInitStructure;
9 c8 M" i# |# y S" M0 q
RCC_APB1PeriphClockCmd( RCC_APB1Periph_TIMx, ENABLE ); //开启时钟! g' X8 S" y) S( ~/ |+ s
TIM_DeInit( TIM2 );
1 _( c* o/ v6 F1 B
#if 0, G5 r& ^1 g J
4 X1 U5 z- X ?; w' w# |
TIM_TimeBaseInitStructure.TIM_Prescaler =(100-1); //时钟分频系数- c, m8 V5 d. U5 g
TIM_TimeBaseInitStructure.TIM_Period =(1000-1);//自动重装寄存器 PWM频率:72M/100/1000=720Hz
+ b! H0 n5 c, @' M/ y
TIM_TimeBaseInitStructure.TIM_CounterMode =TIM_CounterMode_Up;//向上计数模式
0 M2 A' L8 v/ d- C6 Y7 H6 h
TIM_TimeBaseInitStructure.TIM_ClockDivision =0;//时钟分频,这里不涉及$ `1 v5 G7 I" D% W
#ifdef Time17 d$ I2 E- U' O. p" c, c' R& @
TIM_TimeBaseInitStructure.TIM_RepetitionCounter; //This parameter is valid only for TIM1 and TIM8, q# K; i T2 `( J) Y+ r+ c
#endif. K% G! G6 g4 Z
TIM_TimeBaseInit(TIMx,&TIM_TimeBaseInitStructure); //配置参数( F: z; d5 m# N* ~1 X3 D
TIM_ClearITPendingBit(TIMx,TIM_IT_Update);//清除中断标示位7 }0 @. j1 w: q& \+ s
#endif
5 G. o% o% ]; K0 ^
, P" z! n h( Z9 d% x
TIM_ICInitStructure.TIM_Channel = TIM_Channel_2;! L# G9 S4 F* `/ P Y" l6 T
TIM_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Rising; //上升沿有效
4 j1 G& U2 I0 _' D6 \
TIM_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI; //TIM Input 1, 2, 3 or 4 is selected to be! C# V% }1 w9 I9 q9 S
// connected to IC1, IC2, IC3 or IC4, respectively */
" z4 @1 N) ~) O: D3 J
TIM_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1; //无预分频
$ T! r' A! Q$ D$ v0 D
TIM_ICInitStructure.TIM_ICFilter = 0x0; //无滤波2 F3 W" ^' h- w; M
TIM_ICInit( TIMx, &TIM_ICInitStructure ); //初始化PWM输入模式 //参见函数体与参考手册关于PWMI说明& Z* B& \& m5 q! W" S/ ~
TIM_PWMIConfig( TIMx, &TIM_ICInitStructure );
3 h& } |; T5 T+ ~! ?8 i
TIM_SelectInputTrigger( TIMx, TIM_TS_TI2FP2 ); //选择TI2FP2作为TIMx输入触发一个信号来之后启动定时器开始计数. r f; m; {* w* m- d9 _
F' I/ Y" Y! C' }
TIM_SelectSlaveMode( TIMx, TIM_SlaveMode_Reset ); //选择从模式控制器为复位模式,选中的TRGI上升沿重新初始化计数器7 P# p5 A3 z+ L" ?4 S
//从模式控制器连接到TI1FP1 TI2FP2 只要两者有效为设置的电平,就会复位计数器参见TIME结构图
4 v( ^; Z n# [# ^4 h* `
# `2 e& E7 F7 q
TIM_SelectMasterSlaveMode( TIMx, TIM_MasterSlaveMode_Enable ); //使能主从模式 ??????????????????. `# F: ~: J+ K1 m4 c& s+ g
3 |& B3 ~5 Y( j a/ G
TIM_Cmd( TIMx, ENABLE );
' s+ `4 s. z' F& A6 {$ W
2 f$ l$ B' |, @* T7 ~
TIM_ITConfig( TIMx, TIM_IT_CC2, ENABLE );
& ]6 b' Q$ s. R
}
: E0 j, Y2 N2 G: D. s: I: v
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void Time_IN_PWM_Init( void )
7 G/ H7 V2 e8 F
{* @, t1 C5 P1 W9 h( Y, K* O
Time_IN_PWM_GPIO_Config( );) g( [/ g5 ^4 ]5 W+ ?2 ?
Time_NVIC_Config( );
& S% ^9 n2 Z/ j" J5 L) _
Time_IN_PWM_Config( ); //定时器配置
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}$ h. B0 |. ]% w8 l( [' D
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//------------------------------------------------------------------------------
1 u0 x2 y+ W0 V8 J4 b, E) i
// 5、单脉冲模式; G* i0 D% V x1 _$ p! n0 t- g
$ r/ a9 m2 Y8 C7 ^7 D
#include"stm32f10x.h"
9 w3 H9 J* S; Z( s. X
#include"time.h"! H" l; y% Z, {4 K8 B
6 Q1 n. n0 A" a e: r7 L
static Time_NVIC_Config( void )* s# K$ ^* f( M1 e; Z# P: O) @: }
{
" _' t+ H# j- X
NVIC_InitTypeDef NVIC_InitStructure; [/ W- \1 C6 a# S* n' o
/ L" U% L- Q( z' d3 ]
NVIC_SetVectorTable( NVIC_VectTab_FLASH, 0x0000 );
8 b* F2 C0 ~3 L. q) M6 X# K8 Q" W
NVIC_PriorityGroupConfig( NVIC_PriorityGroup_1 );
; Y* c* m0 |" \
NVIC_InitStructure.NVIC_IRQChannel = TIMx_IRQn;
& e/ O, p+ o. B0 Z3 B
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
: [9 ?6 m3 y' c
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;" g* @3 s/ J1 n
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;& d, w7 H* ^# E3 ^9 s( p
NVIC_Init( &NVIC_InitStructure );
0 o" l* |; L1 ?
}
! V: ~2 m! [/ p# p( y. |, S! g% ~; B
% C$ h/ s. Z' ~' i+ d
static Time_SinglePluse_IN_GPIO_Config( void )+ t- p$ i! q3 R! M6 F0 x# z% g+ G- A8 M
{
; B: p8 K% _) U0 D- q. f
GPIO_InitTypeDef GPIO_InitStructure;
; J3 [7 P7 c( w: \
RCC_APB2PeriphClockCmd( TIMx_IN_GPIO_RCC, ENABLE );
1 f, K) U S* S" b
GPIO_InitStructure.GPIO_Pin = TIMx_IN_Pin;
2 }) I) o' j9 \! z7 d, h+ ?( C' ~! m
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //浮空输入模式
* K- V, n0 {2 m1 ~" ?% H% \. x. Z
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;! J3 M: x9 s: A
GPIO_Init( TIMx_IN_Port, &GPIO_InitStructure );/ G0 N4 {: b$ `: L% Y
}
3 I* ?- }. a- s; M5 q# g
1 R8 Q+ T! d* a5 V8 _
static Time_SinglePluse_OUT_GPIO_Config( void )
5 b5 ?9 r. D0 D# c: X
{
8 Y0 O R! l2 o0 X* t
GPIO_InitTypeDef GPIO_InitStructure;
1 o( C2 { x% F5 P
RCC_APB2PeriphClockCmd( TIMx_OUT_GPIO_RCC, ENABLE );+ ?+ O/ g4 ~7 d: [4 u
GPIO_InitStructure.GPIO_Pin = TIMx_OUT_Pin;1 H( @4 r |8 K* e; B1 G; V
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //推免复用输出; n, E2 _3 ^' M
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
) a0 S/ O) @% H+ {) l
GPIO_Init( TIMx_OUT_Port, &GPIO_InitStructure );" T; f6 m) Q: }9 }( Q
}1 Y# f k" e" u) K
7 G- l) ]9 Q) ~- ^
static void Time_SinglePluse_Config( void )% @: y; T; j( h; e1 t$ H/ x& T
{
" A/ K( \& \0 E+ f$ X v4 {
TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
( U4 K& E, g5 T' C
TIM_ICInitTypeDef TIM_ICInitStructure;! ]4 q0 f0 @( a9 \
TIM_OCInitTypeDef TIM_OCInitStructure;
2 D- g( Y9 E- u- C5 T
RCC_APB1PeriphClockCmd( RCC_APB1Periph_TIMx, ENABLE ); //开启时钟$ \2 d: C1 K1 z6 o( x$ ~
TIM_DeInit( TIM2 );/ g. x9 d! Q' H
0 b! j( d5 b: r# ?; q6 ?
TIM_TimeBaseInitStructure.TIM_Prescaler = 1; //时钟分频系数
2 b9 u5 r7 ]9 u9 f. u9 x1 f; T- u+ ~
TIM_TimeBaseInitStructure.TIM_Period = 65535; //自动重装寄存器
& I9 R5 h! U$ T) A& Q( o
TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up; //向上计数模式# j, {. T% E+ n7 G0 R& H
TIM_TimeBaseInitStructure.TIM_ClockDivision = 0; //时钟分频,这里不涉及
4 Y5 a0 k1 ~* _) Q& Z8 \
#ifdef Time19 e5 d9 u- j& U( ?- K
TIM_TimeBaseInitStructure.TIM_RepetitionCounter; //This parameter is valid only for TIM1 and TIM8
0 o, h2 O5 E. p
#endif) Q% U. a" H, \: ?# f% q/ j/ c
TIM_TimeBaseInit( TIMx, &TIM_TimeBaseInitStructure ); //配置参数
1 H. w/ ?% a$ c* Z d
TIM_ClearITPendingBit( TIMx, TIM_IT_Update ); //清除中断标示位* T) G5 i7 @0 G7 B, ?- F8 Z" D, S
$ d) `* L% R- I) ~" N
TIM_ICStructInit( &TIM_ICInitStructure );7 H" X# F( N7 r' j8 F9 l
" C1 |" N" m7 L: K; @1 u. p
TIM_ICInitStructure.TIM_Channel = TIM_Channel_2; //通道2为输入; e" {! I/ h+ z! h; H
TIM_ICInitStructure.TIM_ICPolarity = TIM_ICPolarity_Rising; //上升沿有效
4 @1 ?* n$ ]8 F; ^& J/ U
TIM_ICInitStructure.TIM_ICSelection = TIM_ICSelection_DirectTI; //TIM Input 1, 2, 3 or 4 is selected to be
' C7 o1 E1 a8 z+ U& {7 C6 F
// connected to IC1, IC2, IC3 or IC4, respectively*/
6 T: Q* H; Z1 S2 u4 ?' o5 F
TIM_ICInitStructure.TIM_ICPrescaler = TIM_ICPSC_DIV1; //无预分频7 {! [! U1 n" j% H; v" Y5 ]
TIM_ICInitStructure.TIM_ICFilter = 0x0; //无滤波6 S6 W8 |* D s5 N$ J
TIM_ICInit( TIMx, &TIM_ICInitStructure ); //初始化输入模式' W# _2 t& B* g
TIM_SelectOnePulseMode( TIMx, TIM_OPMode_Single ); //选择单脉冲模式这样下一次更新时间是停止计数器5 F9 b; J6 z6 b$ ~$ ^
TIM_SelectInputTrigger( TIMx, TIM_TS_TI2FP2 ); //选择TI2FP2作为TIMx输入触发一个信号来之后启动定时器开始计数
" c* M2 K7 S& J0 q! h+ L
TIM_SelectSlaveMode( TIMx, TIM_SlaveMode_Trigger ); //选择从模式控制器为触发模式其连接到了TI2FP2 让从模式控制器启动计数器 b4 J2 Y5 `4 v' h& ?
) @6 |3 r- R% [, M
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM2; //输出模式选择为PWM模式2 用PWM2 向上计数时,CNT) m0 E1 h' V1 c# g7 m! J! m3 O+ ~6 L
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //使能通道+ G1 K" q- J8 I9 U" H/ ^% L
#ifdef Time1
( ?$ l/ `8 G9 m7 N4 i2 ` k
TIM_OCInitStructure.TIM_OutputNState =; x' x/ M" F9 G6 ?$ _) F3 C
#endif
" ~- O: Y t- x; l: \: |$ C" Q
TIM_OCInitStructure.TIM_Pulse = 12345; //CCRx里面存放的值
& Z. O4 A* Q& y- k# H
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; //OCREF与OC实际输出相同
: s) o% c" W3 U' p6 i0 v
#ifdef Time1* \) O0 i' }% l) k4 T
TIM_OCInitStructure.TIM_OCNPolarity =;
4 g! s5 w) }7 h1 J+ @, y3 q
TIM_OCInitStructure.TIM_OCIdleState =; {) m. w/ o" `8 T
TIM_OCInitStructure.TIM_OCNIdleState =;
+ ^+ G8 A! d+ w0 k, s
#endif
$ i7 H0 R" | k0 h% B7 ^& \2 [
TIM_OC1Init( TIMx, &TIM_OCInitStructure ); //使用通道1作为单脉冲的输出通道0 U9 b9 r. K3 _8 h- \2 m: |
& J! C% z+ M8 a6 L0 d4 I5 G; g* ]
//TIM_Cmd(TIMx, ENABLE); //使用TI2FP1来触发定时器,不需要软件启动定时器 8 s' R4 s+ b& u0 N# d
}( D9 M1 ^% D1 R, `7 c( \1 W
! q, b% W3 m! o
void Time_SinglePluse_Init( void )6 C3 f' `. P$ X1 Q/ x$ B
{$ Z- x' O2 o% U8 n( K9 p
Time_SinglePluse_IN_GPIO_Config( ); //配置time2的通道2为输入
: m3 \) u9 C* s# J7 h* p! [7 c
Time_SinglePluse_OUT_GPIO_Config( ); //配置time2的通道1为输出
" m7 P8 s, Q. Q. @) ~* R6 T/ U
Time_NVIC_Config( ); //可以不用$ |4 G5 t7 D v' n
Time_SinglePluse_Config( ); //定时器配置
! `) d1 }* e& Q) h% A& N; q: L
}
$ A0 M: p. P- j) e( V( k, z: [
. W) r( I: E/ T; l
//------------------------------------------------------------------------------2 g( k" N7 u h
// 6、定时器联级
% ?0 p) z4 y$ [" l" J( B
* n* r, s+ A- S$ B
#include"stm32f10x.h"
) z6 h% \) a* K! @+ q! Z
#include"time.h"
& H6 U* a2 v7 m( }! P0 c. H% h
' G' t1 x, _% i9 J9 N3 U/ Z
static Time_NVIC_Config( void )6 J2 W$ c; \3 M0 D( _: ~
{
% n% b2 T' N) \) c
NVIC_InitTypeDef NVIC_InitStructure;
( @, X4 N/ i2 F2 g9 U7 c
7 r' i4 a! ?8 Z1 \
NVIC_SetVectorTable( NVIC_VectTab_FLASH, 0x0000 );9 d) j& P! U8 I, J; C
NVIC_PriorityGroupConfig( NVIC_PriorityGroup_1 );
. I# @& t2 K5 `( e( N
NVIC_InitStructure.NVIC_IRQChannel = TIM2_IRQn;
- L7 Z+ |0 d- e
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;$ h+ \/ }+ D N6 I% [+ Z2 b
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;5 s- j7 R$ e" M! t2 ?- B: {& T
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;3 ?) h9 T/ s6 p) M$ r: [& v
NVIC_Init( &NVIC_InitStructure );
% Y; b/ |; t. T) c1 R. w: ]6 [, T. J: \
}- z" g7 C+ X( M8 j6 K
9 [* E3 v. B# k
static Time_Connect_GPIO_Config( void )
# ~. e0 Z) F9 s+ d" x& f! A$ S0 _
{
2 M( k/ g2 @$ v; g. O
GPIO_InitTypeDef GPIO_InitStructure;
3 }0 B$ g3 T) k8 W3 l
RCC_APB2PeriphClockCmd( RCC_APB2Periph_GPIOA | RCC_APB2Periph_GPIOB, ENABLE );
4 c+ n. B5 v1 o; q% {% s$ ?! N
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0 | GPIO_Pin_6; //time2 ch1 pin.0 time3 cha1 pin.6
, E3 X8 b: o7 o9 r
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //推免复用输出* c. y, V' \9 T" n a7 g( x) ^5 N
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;1 i3 ~* g- x N: U/ [# {( u% [! D
GPIO_Init( GPIOA, &GPIO_InitStructure );
0 m8 Q6 x9 M$ A7 E1 G d# C. `
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; //time4 ch1 pin.6 ( w" P \9 e1 h" m5 h* A
GPIO_Init( GPIOB, &GPIO_InitStructure );
! o/ p# y1 g+ i* R$ E a( O
}
% Q1 R8 Q; K- K1 o/ X! i
' }3 |% u+ ~! ?6 ?: N& N
static void Time_Connect_Config( void )/ T0 ]& X1 N0 K+ W& Q" j
{
* [/ O5 u! X7 _" P* U
TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure;
i( O, j& b; V8 t) f
TIM_OCInitTypeDef TIM_OCInitStructure;
! S+ J/ s) q$ v& {2 j
RCC_APB1PeriphClockCmd(
- o1 _/ s' R1 y( l$ z* ^: m
RCC_APB1Periph_TIM2 | RCC_APB1Periph_TIM3 | RCC_APB1Periph_TIM4, ENABLE );
2 C7 [4 k& g2 M' Q/ Z0 Y
TIM_DeInit( TIM2 );6 v9 f) |# P' }6 q
TIM_DeInit( TIM3 );
- z m9 [# |0 }! p
TIM_DeInit( TIM4 );
; b0 }2 Y1 |4 @/ }. e
1 ^% v" y7 H9 v6 b
TIM_TimeBaseInitStructure.TIM_Prescaler = 0; //时钟分频系数* C2 f- G3 D0 x8 Q! W
TIM_TimeBaseInitStructure.TIM_Period = 99; //自动重装寄存器
+ o4 J7 M4 ]4 R7 I; ~+ [, q. r9 _
TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up; //向上计数模式2 E5 a' q8 Q7 ^, G/ T4 g
TIM_TimeBaseInitStructure.TIM_ClockDivision = 0; //时钟分频,这里不涉及6 K1 J0 Q/ L$ c0 \/ L; {
#ifdef Time1 //或者Time8
* @, {9 V! i4 P0 G
TIM_TimeBaseInitStructure.TIM_RepetitionCounter; //This parameter is valid only for TIM1 and TIM8
2 x6 }1 U! h- i+ T$ Y
#endif/ A- }2 I8 v, Z9 } H
TIM_TimeBaseInit( TIM2, &TIM_TimeBaseInitStructure ); //配置参数1 ?' a; z- ?8 W# Y5 Z0 t
TIM_ClearITPendingBit( TIM2, TIM_IT_Update ); //清除中断标示位# N: o5 I: x% m4 E
3 Y8 Z/ @/ X4 A. W3 \* p2 o
TIM_TimeBaseInitStructure.TIM_Period = 5;
4 s0 d4 d& P* \1 B, ^ H' `& p E
TIM_TimeBaseInit( TIM3, &TIM_TimeBaseInitStructure );
# a6 `( c a% ?3 k& B) Y" H/ v( ?
TIM_ClearITPendingBit( TIM3, TIM_IT_Update );/ }6 ?, v: u5 ]! U: R' k, U% X, h9 N# V h
- \3 H! w0 d+ r0 q0 J
TIM_TimeBaseInitStructure.TIM_Period = 5;
0 ~5 G4 P( M' V3 K! |0 L
TIM_TimeBaseInit( TIM4, &TIM_TimeBaseInitStructure );
* ]8 j5 P. U: c2 }, U2 R
TIM_ClearITPendingBit( TIM4, TIM_IT_Update );
8 v/ W& n2 X9 R! ]" \: \; Z0 U J' ^
4 R7 A* M. t# w3 x. e$ m2 D
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1; //输出模式选择为PWM模式2 用PWM2 向上计数时,CNT# M, S' O7 W$ X7 s- \
TIM_OCInitStructure.TIM_OutputState = TIM_OutputState_Enable; //使能通道# a+ k/ @ ^- a8 ?8 t
TIM_OCInitStructure.TIM_Pulse = 49; //CCRx里面存放的值# P6 `; J& n' K j; Y" f! r5 b; W% r
TIM_OCInitStructure.TIM_OCPolarity = TIM_OCPolarity_High; //OCREF与OC实际输出相同9 q% C; Z% M7 `& f1 I
TIM_OC1Init( TIM2, &TIM_OCInitStructure ); //使用通道1作为单脉冲的输出通道( N6 o! k# g2 y; C8 _; \
TIM_SelectMasterSlaveMode( TIM2, TIM_MasterSlaveMode_Enable ); //使能主从模式
* R- v/ R- u9 |8 ~
- e. l! O1 O+ e) Z& v
TIM_SelectOutputTrigger( TIM2, TIM_TRGOSource_Update ); //选择Time2的更新事件作为触发输出
1 [4 c2 ]0 [8 m
) @; E1 l+ d; h4 ?5 ~
TIM_OCInitStructure.TIM_OCMode = TIM_OCMode_PWM1;; m* R j1 ?1 B% X$ L8 A2 m
TIM_OCInitStructure.TIM_Pulse = 3;
! V4 u: ]0 _7 l W1 |% _$ ^
+ }. f2 _( o8 B
TIM_OC1Init( TIM3, &TIM_OCInitStructure );0 D+ }3 g, M n& _ Z4 |+ E
TIM_OC1Init( TIM4, &TIM_OCInitStructure );
. U- X% M2 [; o9 a. Z
; h/ O: H+ y# ?0 r% w: C* C
TIM_SelectSlaveMode( TIM3, TIM_SlaveMode_Gated ); //从模式的输入触发选择为门控模式
8 Q! |: h; z) Z# {
TIM_SelectInputTrigger( TIM3, TIM_TS_ITR1 ); //从模式触发源选择为内部触发1?????????????为什么是内部触发1 不是0 2 3
4 x# n0 d+ J/ a& a% d; z
//原因:ITR0 ITR1 ITR2 ITR3 对应主模式的TIM2 TIM3 TIM4 TIM57 O$ D M( n. W' c( ^- h
' m* Y9 Q, Y% o3 [' z) }: @% _
TIM_SelectSlaveMode( TIM4, TIM_SlaveMode_Gated ); ~8 u9 X2 H( V) d0 w
TIM_SelectInputTrigger( TIM4, TIM_TS_ITR1 );5 S5 L# b! n& h
+ C, \2 S5 s1 |' D; s( |+ M
TIM_Cmd( TIM2, ENABLE );& N: `+ Y1 `9 r
TIM_Cmd( TIM3, ENABLE );' {1 P# o' p" x+ x& w1 `3 r9 R
TIM_Cmd( TIM4, ENABLE );
2 t& l0 y! ~) W# P0 A* c
}0 w& ?% m3 B! Z+ L) e6 |; `5 P; c
& Z( N+ p k, @& ?$ E+ w5 R5 O
void Time_Connect_Init( void )4 H! a/ Y! `1 W9 c5 ?
{
& X* a* |* Y6 c6 k. q& ~
Time_Connect_GPIO_Config( );6 [" _$ C* e1 k0 P
Time_NVIC_Config( ); //可以不用
5 ~% K4 R5 o8 b# \" g7 @' _! g
Time_Connect_Config( ); //定时器配置
1 i7 t2 b/ @0 a+ n
}