初始化代码3 g0 @. M% T* w' U# z6 R3 O
- void Encoder_Init_TIM3(void)+ R% \$ U9 Q9 T: z
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0 @8 s" _/ H/ A& G: i1 ], _ - TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; 3 i; |& @2 [& R1 R1 Z6 a/ C
- TIM_ICInitTypeDef TIM_ICInitStructure; 1 y/ v# Y/ e7 G& u2 F P
- GPIO_InitTypeDef GPIO_InitStructure;! P8 y: s/ b, e2 R: l2 E+ ]
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: {. ~& M: O, a) A; x - RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);//?????2???
* G* H: q6 q- ?1 H. K; | - RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);//??PA PB????2 i4 P* \! w5 B
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
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! x |) \ J6 Y3 v& r - GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; //???? PA15) X6 j5 A, e6 ?) z. l
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //????6 m( G" ?$ k; Q" Y3 l& y. t
- GPIO_Init(GPIOA, &GPIO_InitStructure); //?????????GPIOA
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0 G- }1 ?8 F7 Z: e2 _ - GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7; //???? PB3- y) R& U: S1 z5 Q- u% o- c G: J
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //????9 i8 r; P8 w7 O. h; t
- GPIO_Init(GPIOA, &GPIO_InitStructure); //?????????GPIOB
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- TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);& O# d' ^" @' B B0 f1 U
- TIM_TimeBaseStructure.TIM_Prescaler = 0x0; // ????
, w; }# Z& j9 x$ N) Z) Z - TIM_TimeBaseStructure.TIM_Period = 65535; //??????????" d$ ^2 ]5 @: P" C2 G: x
- TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;//??????:???2 p9 h4 _9 U* ^. Q
- TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;//?????? 2 V# t/ P* Q. l, @/ c4 `" S8 }2 H. K
- TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); //??????2) g! n; ]1 Q: Y- T2 u
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6 c1 V2 }; [5 S: ^ - TIM_EncoderInterfaceConfig(TIM3, TIM_EncoderMode_TI12, TIM_ICPolarity_Rising, TIM_ICPolarity_Rising);//???????3& k8 c# `3 A: d1 I( r! w* R
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( _1 m1 W, @% Z6 G n - TIM_ICStructInit(&TIM_ICInitStructure); //?TIM_ICInitStruct ?????????????4 w b& R1 h* q4 c. Z8 f. H
- TIM_ICInitStructure.TIM_ICFilter = 10; //???????% v" D( J* Z, W8 ~ l
- TIM_ICInit(TIM3, &TIM_ICInitStructure);//?? TIM_ICInitStruct ???????? TIMx' O) j8 Z q$ i; r) V
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- TIM_ClearFlag(TIM3, TIM_FLAG_Update);//??TIM??????7 M* T" i' m( t9 d: A _; ]
- TIM_ITConfig(TIM3, TIM_IT_Update, ENABLE);//???????. Z2 C! p& U) h; I* B. I' \. i' K9 J
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- TIM_SetCounter(TIM3,0);: G7 Z$ }5 Y9 L5 X
- TIM_Cmd(TIM3, ENABLE); //?????2
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& Z! Z& p: R% N! | - void Encoder_Init_TIM4(void)
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- TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
9 U3 I& I ]! R. V - TIM_ICInitTypeDef TIM_ICInitStructure; ; E; g. q. r% D
- GPIO_InitTypeDef GPIO_InitStructure;+ ]& |+ M$ @. u0 ~' v8 m u4 A
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$ [3 G' M% T5 i% r: ] - RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);//?????2???
; }( A3 P$ L) X4 I - RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);//??PA PB????
9 M/ k+ u, \4 ?7 o' J - RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
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# O, D6 t) k8 X/ m - GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; //???? PA15
& g& O& @2 J- C6 x - GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //????# y$ x9 ]( q9 e$ L3 \$ P& x5 I1 C
- GPIO_Init(GPIOB, &GPIO_InitStructure); //?????????GPIOA
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- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7; //???? PB3: |$ k5 g3 L+ z' i" B, \
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //????
7 i) }# |, F6 I+ D; R) I) n2 I - GPIO_Init(GPIOB, &GPIO_InitStructure); //?????????GPIOB; b+ `% G) |- Z+ y9 {
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- TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);0 S; n& C7 S5 K& G- d
- TIM_TimeBaseStructure.TIM_Prescaler = 0x0; // ????
6 m0 ^- [+ B# k4 y8 T- Q% _* | - TIM_TimeBaseStructure.TIM_Period = 65535; //??????????, N# u! | ^$ b) \! J4 _
- TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;//??????:???
( x8 Y; G. r+ C L5 } - TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;//?????? 5 x3 S4 t! Z& N+ m* J4 P; }1 J2 g
- TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure); //??????2- g% {, K8 u- z2 \
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" Q2 }7 v3 ^: Z. b0 l5 c3 [' h1 C - TIM_EncoderInterfaceConfig(TIM4, TIM_EncoderMode_TI12, TIM_ICPolarity_Rising, TIM_ICPolarity_Rising);//???????3; ~5 o) n' M& ^% T8 [( ]& g
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- ~' _! M0 r3 I' a - TIM_ICStructInit(&TIM_ICInitStructure); //?TIM_ICInitStruct ?????????????
8 @9 F1 O, q* l9 {4 R! s7 F - TIM_ICInitStructure.TIM_ICFilter = 2; //???????& x1 T4 w# S) X. u8 s
- TIM_ICInit(TIM4, &TIM_ICInitStructure);//?? TIM_ICInitStruct ???????? TIMx Q$ q0 Y& H' |7 { D" s
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- TIM_ClearFlag(TIM4, TIM_FLAG_Update);//??TIM??????
2 P% {/ F* H( x1 s - TIM_ITConfig(TIM4, TIM_IT_Update, ENABLE);//???????
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9 c) u$ f' _9 w7 K2 F$ O9 S# p - TIM_SetCounter(TIM4,0);
! k6 l3 B! z x z - TIM_Cmd(TIM4, ENABLE); //?????2
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/ ^7 ^* u( T4 @ O读取函数
1 ~; Q2 z! O+ Y- v3 M) y( T0 Y- int Read_EncoderB(void)
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- int encoder_num;9 x% G. F5 X) P6 @9 S: a' _
- encoder_num = (int)((int16_t)(TIM3->CNT));
_7 O$ h. a0 Z- s# O7 m) l - //TIM_SetCounter(TIM3, 0);; z6 ^0 m d6 s0 S% Q1 J, Y
- return encoder_num;4 a4 U+ V/ A" m
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- int Read_EncoderA(void)
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- int encoder_num;4 p+ l2 f' L" f, j( F, ~
- encoder_num = (int)((int16_t)(TIM4->CNT)); 5 j! D" n) T. ~2 x. Y3 a
- //TIM_SetCounter(TIM3, 0);8 J% n* X4 m" {* S. ~1 Q
- return encoder_num;
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" z$ G! l4 L: q0 t( V* p8 t" k置零函数0 t5 H3 y$ G u2 ^ M% X) Z0 G
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- TIM_SetCounter(TIM3, 0);/ f) J7 L; R8 N! b
- TIM_SetCounter(TIM4, 0);
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