初始化代码
" l: x, r+ J; }$ V& i- void Encoder_Init_TIM3(void)
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% F7 g5 l! o+ |9 n - TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; . k5 {% z0 H* D$ B. {4 m- T
- TIM_ICInitTypeDef TIM_ICInitStructure; ( L9 e% r) v& N6 P
- GPIO_InitTypeDef GPIO_InitStructure;
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' B! z! t" A7 _$ q7 {% x - RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);//?????2???
& S" f$ W+ @% J5 }" o; k* {# [+ r - RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);//??PA PB????( j% x1 R1 D$ }1 w$ Y; ~
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
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- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; //???? PA15: ?+ Y9 E0 Z9 u/ u0 n# O
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //????
& {- S) k0 f; W. U) ~ - GPIO_Init(GPIOA, &GPIO_InitStructure); //?????????GPIOA
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- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7; //???? PB3: g! l1 F/ [- ?' Z4 ?3 f
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //????
* k6 l- q( _7 b - GPIO_Init(GPIOA, &GPIO_InitStructure); //?????????GPIOB& c8 j) R- ~! W3 h4 }) j& n, z
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* ]9 K7 B% v* l- W4 [ - TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);; m% e ?) u& c$ R% S1 K! { `
- TIM_TimeBaseStructure.TIM_Prescaler = 0x0; // ???? ! o) V3 W1 a; ]- _6 c5 I) `
- TIM_TimeBaseStructure.TIM_Period = 65535; //??????????8 [: H5 j. e# Q2 x# k$ W
- TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;//??????:???7 L- [5 c8 y9 F4 U0 a" m
- TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;//?????? ) n# U8 O1 N# k- f8 Q2 E3 m4 g' m
- TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); //??????2
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M- j8 Q* N9 e; V G5 T - TIM_EncoderInterfaceConfig(TIM3, TIM_EncoderMode_TI12, TIM_ICPolarity_Rising, TIM_ICPolarity_Rising);//???????3. G- b6 `* U. k1 |1 M6 ?* ^, Q
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- TIM_ICStructInit(&TIM_ICInitStructure); //?TIM_ICInitStruct ?????????????
( Y+ E |: C- \- L& n4 v1 B/ ^! y - TIM_ICInitStructure.TIM_ICFilter = 10; //???????! {3 W, H' l/ O0 B/ V- O" g+ ^
- TIM_ICInit(TIM3, &TIM_ICInitStructure);//?? TIM_ICInitStruct ???????? TIMx/ V. j x b! R$ H( ~, F. p. I
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( N2 ?1 _0 v4 d& _9 K - TIM_ClearFlag(TIM3, TIM_FLAG_Update);//??TIM??????3 u. _. Z' t# X' ~3 T7 L
- TIM_ITConfig(TIM3, TIM_IT_Update, ENABLE);//???????
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1 k& n r) u+ F Z - TIM_SetCounter(TIM3,0);
1 J6 a. k! E7 W6 u4 c. k0 b - TIM_Cmd(TIM3, ENABLE); //?????27 V9 }4 d) }! {& L) O
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% x/ q' A" U8 u8 H v - void Encoder_Init_TIM4(void)* U: Y' Y. I9 Q' V+ Y8 l" e
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- TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; ; k. q+ k: j0 `
- TIM_ICInitTypeDef TIM_ICInitStructure; ( i! m) Z2 A- @2 M f6 N" b/ L
- GPIO_InitTypeDef GPIO_InitStructure;0 M. |* P, }) n& v H
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, v0 w4 p0 n3 Z$ g3 { - RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);//?????2???
: T! B/ ]4 }6 J! ^ - RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);//??PA PB????
. a4 V' ~9 M/ F- O- V2 J1 Q7 v - RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);% I) a# e. }( g8 ?
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0 t/ |3 K* P- e- I3 ~0 U - GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; //???? PA15" R, G O+ W2 D2 [$ @
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //????, G0 m' ]9 {: H
- GPIO_Init(GPIOB, &GPIO_InitStructure); //?????????GPIOA/ N, r, T2 i+ J* m/ s5 \ _2 B
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) x, V- \! O: M8 V6 H2 q, s) l - GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7; //???? PB3
# F- Z6 x! L# p: H' T; d- \ - GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //????
+ b$ ]. N) ^# a6 g - GPIO_Init(GPIOB, &GPIO_InitStructure); //?????????GPIOB2 J4 K$ W4 ~( g% {( R+ v. Q1 ]. @
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2 ]. E8 O" n0 r, y- i" w/ h - TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
8 m# {, _0 n' L4 [ - TIM_TimeBaseStructure.TIM_Prescaler = 0x0; // ???? 2 U3 m0 E% e1 I; }7 w: z
- TIM_TimeBaseStructure.TIM_Period = 65535; //??????????
/ G j, k5 Z R# G( l6 F( r( s - TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;//??????:???
5 a! _+ i- j }" `/ H0 n! @2 P - TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;//?????? % Y1 @% w" M+ |7 G/ t* r u
- TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure); //??????2
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- TIM_EncoderInterfaceConfig(TIM4, TIM_EncoderMode_TI12, TIM_ICPolarity_Rising, TIM_ICPolarity_Rising);//???????3
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- TIM_ICStructInit(&TIM_ICInitStructure); //?TIM_ICInitStruct ?????????????
0 [) j% W7 H N# q: [ - TIM_ICInitStructure.TIM_ICFilter = 2; //???????
7 A# J5 g1 s; E& J - TIM_ICInit(TIM4, &TIM_ICInitStructure);//?? TIM_ICInitStruct ???????? TIMx
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( x' G/ `6 j1 X0 M! e2 b# g - TIM_ClearFlag(TIM4, TIM_FLAG_Update);//??TIM??????9 z# j- y! o9 U
- TIM_ITConfig(TIM4, TIM_IT_Update, ENABLE);//???????
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- TIM_SetCounter(TIM4,0);
% V6 b. f/ e! \- t - TIM_Cmd(TIM4, ENABLE); //?????2! v% z" S3 U( E \' X' c' e# S. c
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复制代码
, q5 \9 r( n! p读取函数+ M- z0 l* b/ M- S* F
- int Read_EncoderB(void)
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" H, Z. w2 W( c/ } - int encoder_num;& J7 G' ] C0 ~0 p: @) U' w+ z
- encoder_num = (int)((int16_t)(TIM3->CNT));
0 @& V' [. }. t - //TIM_SetCounter(TIM3, 0);# ]) ? }, F. d1 Q
- return encoder_num;
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% ^& N1 f1 l% p! z- l o - int Read_EncoderA(void) V& d# D# w" I) m- ~
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- int encoder_num;! r2 n8 a7 D( k6 ?& C, N. R+ r* ~
- encoder_num = (int)((int16_t)(TIM4->CNT));
2 z8 E8 e1 U" {: I - //TIM_SetCounter(TIM3, 0);* |+ \0 s8 J9 ]( H) R F
- return encoder_num;
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复制代码
! G" V1 D5 v6 _) x8 v& ?6 Q1 i3 L置零函数
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: u" `3 ~( V: A" l - TIM_SetCounter(TIM3, 0);% R3 d: A! k. p: O1 g8 U
- TIM_SetCounter(TIM4, 0);
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