初始化代码
, p' |( [. w4 a7 b& }" Q* x- void Encoder_Init_TIM3(void)7 L8 h5 l4 D, B4 h& n: `0 z
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- TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; 2 c/ B- ^6 Q$ m. M% Q L
- TIM_ICInitTypeDef TIM_ICInitStructure; 7 i% p. s* o2 Z) b" c6 h
- GPIO_InitTypeDef GPIO_InitStructure;, P0 C1 e8 y4 W9 r( m1 S
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0 s: h1 M3 X: x2 z7 S3 t% j' T - RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);//?????2???- r# p3 ?0 C8 Z9 ?; O7 z$ i$ L
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);//??PA PB????! n7 i# O! Q6 I/ U. e3 }/ S
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);3 v; s3 m5 H+ V. O, p% r
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- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; //???? PA155 v$ C1 {5 J7 Q7 ~1 R& p& u
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //????
& X) ]; A+ o! ]0 E) C- N% }8 r3 Q" N - GPIO_Init(GPIOA, &GPIO_InitStructure); //?????????GPIOA
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- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7; //???? PB3
( T7 R8 g& T' s3 J$ y - GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //????7 t" O, w, i* U( ?6 p/ _) G- r
- GPIO_Init(GPIOA, &GPIO_InitStructure); //?????????GPIOB5 y( j! B7 D" D) S+ D
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- TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
2 z/ v8 r3 G# M1 T: H - TIM_TimeBaseStructure.TIM_Prescaler = 0x0; // ????
5 S7 x( r b0 q& r) r& g k - TIM_TimeBaseStructure.TIM_Period = 65535; //??????????& n5 U4 j! d! R
- TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;//??????:???4 a( y6 x2 m. y2 E- ^0 Z
- TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;//?????? ; R; J0 P& |6 I) P' y0 p
- TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); //??????2. R8 K& N2 w/ E; q
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! z1 k+ ^6 h" { - TIM_EncoderInterfaceConfig(TIM3, TIM_EncoderMode_TI12, TIM_ICPolarity_Rising, TIM_ICPolarity_Rising);//???????3, y0 @2 Q! K) T& \
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5 [9 \4 M7 O1 t- [% D( [! A - TIM_ICStructInit(&TIM_ICInitStructure); //?TIM_ICInitStruct ?????????????1 t7 A- @+ z; Q* b1 ?6 C* ~5 G* `/ |
- TIM_ICInitStructure.TIM_ICFilter = 10; //???????
5 J$ ?% m# N5 \" o4 i: c - TIM_ICInit(TIM3, &TIM_ICInitStructure);//?? TIM_ICInitStruct ???????? TIMx
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- TIM_ClearFlag(TIM3, TIM_FLAG_Update);//??TIM??????
8 w+ ^* G4 \( D% H - TIM_ITConfig(TIM3, TIM_IT_Update, ENABLE);//???????
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- TIM_SetCounter(TIM3,0);" c9 o! H# ? m; e( n+ ~7 i+ d
- TIM_Cmd(TIM3, ENABLE); //?????2& K6 o" ]9 ~; ]$ f6 a- z
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# X( y q: O: e) }9 s" p - void Encoder_Init_TIM4(void)
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- TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
3 ~* t. n& H/ |' b - TIM_ICInitTypeDef TIM_ICInitStructure; % N& I6 ?; S* ^; M E& j
- GPIO_InitTypeDef GPIO_InitStructure;2 a: I7 R: ?6 X& h* O9 U
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- RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);//?????2???
" O6 Q- ~+ B/ ]0 `7 a) M - RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);//??PA PB????
8 U% H+ j8 F# x4 h. Z, J ~ - RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
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- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; //???? PA15
M- a+ b( e3 o$ j0 g8 e! p - GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //????
9 [8 [% }7 W# g2 K1 A4 q+ ]2 G6 Q# K - GPIO_Init(GPIOB, &GPIO_InitStructure); //?????????GPIOA
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0 O3 I2 w5 d9 t9 @) }' k1 W - GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7; //???? PB3" K' b" f7 {* {/ o
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //????5 _. T: [2 O# A
- GPIO_Init(GPIOB, &GPIO_InitStructure); //?????????GPIOB
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- TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);+ i- c7 K; @4 w
- TIM_TimeBaseStructure.TIM_Prescaler = 0x0; // ???? 9 s& J& \8 c# j: r) K5 u8 D# Q' R/ k
- TIM_TimeBaseStructure.TIM_Period = 65535; //??????????9 T% R9 f( D C- ]$ L
- TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;//??????:???: P7 P- H! k% P! N( Q
- TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;//??????
7 C6 x0 I) t u; z# h- h - TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure); //??????2
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- TIM_EncoderInterfaceConfig(TIM4, TIM_EncoderMode_TI12, TIM_ICPolarity_Rising, TIM_ICPolarity_Rising);//???????35 E/ o {- _1 r x: _, ?
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4 `9 E& Y- P# x3 u6 E1 d - TIM_ICStructInit(&TIM_ICInitStructure); //?TIM_ICInitStruct ?????????????
3 H7 m- [; `! Z* w" n8 B - TIM_ICInitStructure.TIM_ICFilter = 2; //???????
- n, \9 y6 C( b4 W* D- @ - TIM_ICInit(TIM4, &TIM_ICInitStructure);//?? TIM_ICInitStruct ???????? TIMx
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- TIM_ClearFlag(TIM4, TIM_FLAG_Update);//??TIM??????& T& j& q% h4 a& c- y! N1 y) j
- TIM_ITConfig(TIM4, TIM_IT_Update, ENABLE);//???????. e# b/ E# }) s; \- E
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- TIM_SetCounter(TIM4,0);0 q* q1 z T0 E/ k8 T% Z
- TIM_Cmd(TIM4, ENABLE); //?????2( I: E+ h1 J4 [1 l( ^3 m: C* }1 e
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- int Read_EncoderB(void)
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- int encoder_num;" s- g. \/ f. I" }& O! A' f
- encoder_num = (int)((int16_t)(TIM3->CNT)); 8 E& g) {* ~& T/ ^4 h
- //TIM_SetCounter(TIM3, 0);7 M. a& n7 z: V- [/ t
- return encoder_num;
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- int Read_EncoderA(void)1 A8 Q$ S R2 a- }% D2 X" k, w
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3 Q; J/ _/ X( q' R0 l - int encoder_num;9 w& Q& X. C% m7 a) `6 J0 K N. l
- encoder_num = (int)((int16_t)(TIM4->CNT)); " ~+ U- u: C! N, U1 h1 i
- //TIM_SetCounter(TIM3, 0);
( }0 y. t E7 p/ {' w. i$ E1 l) h - return encoder_num;
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- TIM_SetCounter(TIM3, 0);
M) C I/ x3 e% X! {3 l+ X - TIM_SetCounter(TIM4, 0);
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