初始化代码
/ L( `, ^* k: ~3 r# V& K2 B$ M- void Encoder_Init_TIM3(void)
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- TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; % T' |* C2 @- `0 @5 N8 `3 @
- TIM_ICInitTypeDef TIM_ICInitStructure;
- ~% j% a# }# K B - GPIO_InitTypeDef GPIO_InitStructure;8 ]' c. G/ \. d
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1 c/ W% d$ A9 r6 G4 A" B - RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);//?????2???% N8 l' o# e! R! R$ O, E% `7 J4 H
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);//??PA PB????
" e' [) m0 y1 R( R. {; L& H - RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);& ~! s) r0 r) O' e
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- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; //???? PA155 `" v+ w* L7 i9 F; ?
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //????
2 v3 Z! `" S- J/ k& e4 h J0 Z0 K - GPIO_Init(GPIOA, &GPIO_InitStructure); //?????????GPIOA
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6 ^8 J/ J9 G U% } - GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7; //???? PB3
' n& \6 z( H& J Z$ G$ v! d - GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //????
# v$ z" q4 G4 e( F9 S% y - GPIO_Init(GPIOA, &GPIO_InitStructure); //?????????GPIOB
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3 |, ~# u7 v$ q- w - TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);4 U9 p$ i/ }% u7 P O0 N O4 F
- TIM_TimeBaseStructure.TIM_Prescaler = 0x0; // ????
( ?! E+ o" H: R8 F6 S8 t# C - TIM_TimeBaseStructure.TIM_Period = 65535; //??????????
- ?$ ]" k0 x! `0 u" j - TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;//??????:???+ L' z& S& p& l, @8 Q' O" Q
- TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;//??????
( [- n" E! v" P; I - TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); //??????2
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- TIM_EncoderInterfaceConfig(TIM3, TIM_EncoderMode_TI12, TIM_ICPolarity_Rising, TIM_ICPolarity_Rising);//???????3' }! U) D! A- U7 ?, v' D; R( X
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; x0 i# V" z6 W/ ~1 [* X: \ - TIM_ICStructInit(&TIM_ICInitStructure); //?TIM_ICInitStruct ?????????????( ~0 B, e4 s* B/ Z$ ]! g
- TIM_ICInitStructure.TIM_ICFilter = 10; //???????
8 W. b+ a0 q! T8 Z4 B3 ]; P - TIM_ICInit(TIM3, &TIM_ICInitStructure);//?? TIM_ICInitStruct ???????? TIMx7 V b1 Q) I; A: s* `
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3 n& P. T$ R0 L- e( f' T3 f9 k - TIM_ClearFlag(TIM3, TIM_FLAG_Update);//??TIM??????' D2 _7 ~& h" F4 K
- TIM_ITConfig(TIM3, TIM_IT_Update, ENABLE);//???????
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- TIM_SetCounter(TIM3,0);
# B: L, v9 b5 g8 \0 U6 j - TIM_Cmd(TIM3, ENABLE); //?????2% ~/ e2 w% s q
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- void Encoder_Init_TIM4(void)
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, q4 y" j& U# `" J6 {3 q8 @ - TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure; 5 v6 }0 O/ ^1 ` Y
- TIM_ICInitTypeDef TIM_ICInitStructure;
) \ K8 g) r u( ^: o - GPIO_InitTypeDef GPIO_InitStructure;; z, S' U- p, k9 P( Y
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# J# ?, q5 p5 d3 _& C' `$ W - RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);//?????2???: a7 @( P4 t/ o0 i
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);//??PA PB????: i' v) B* ^+ U( a0 b& {' J& e, ^
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
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7 O) w6 I+ o9 G$ p - GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; //???? PA15
8 v/ V% V: K0 F3 Y+ P* T - GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //????8 M! l2 @5 L& i9 ^5 a$ J" p. p
- GPIO_Init(GPIOB, &GPIO_InitStructure); //?????????GPIOA
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1 L/ }5 _$ `; ]8 v s/ _9 k" c- d - GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7; //???? PB3& y2 S: p7 S, Z* y& R @2 u
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //????
3 U+ _' h2 R- J- _% N; u! \8 Y - GPIO_Init(GPIOB, &GPIO_InitStructure); //?????????GPIOB
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- TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);9 G ~4 W) a' n4 l# l* W p% `
- TIM_TimeBaseStructure.TIM_Prescaler = 0x0; // ???? . I7 j0 K8 T/ Q
- TIM_TimeBaseStructure.TIM_Period = 65535; //??????????
' C9 M! ~+ P c' B6 x% l5 b' h! g$ ~2 f - TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;//??????:???
0 }6 O K5 N& P3 w7 u# K - TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;//?????? 4 ]$ P- w5 U1 r
- TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure); //??????2
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/ n( R& ]6 Y* M2 \. L' P! w. C - TIM_EncoderInterfaceConfig(TIM4, TIM_EncoderMode_TI12, TIM_ICPolarity_Rising, TIM_ICPolarity_Rising);//???????3
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- TIM_ICStructInit(&TIM_ICInitStructure); //?TIM_ICInitStruct ?????????????- c5 D$ m- w# m
- TIM_ICInitStructure.TIM_ICFilter = 2; //???????
" V; \5 ]2 [' ?2 G1 _ - TIM_ICInit(TIM4, &TIM_ICInitStructure);//?? TIM_ICInitStruct ???????? TIMx
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- TIM_ClearFlag(TIM4, TIM_FLAG_Update);//??TIM??????
6 `% O: g8 H; V% } - TIM_ITConfig(TIM4, TIM_IT_Update, ENABLE);//???????
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8 o0 R# J* Z5 @5 Q7 T- [ - TIM_SetCounter(TIM4,0);& |& i0 k4 F7 J5 |/ P( D
- TIM_Cmd(TIM4, ENABLE); //?????23 [/ B3 |; I6 Y2 [7 G* u. o% s
- }
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- int Read_EncoderB(void)
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- int encoder_num;
5 `/ H. k4 y1 ~6 I- z6 E1 ~ - encoder_num = (int)((int16_t)(TIM3->CNT)); $ q0 o1 K: H* u" O
- //TIM_SetCounter(TIM3, 0);* g1 @8 D0 m" a! o( e; H$ c- {( H
- return encoder_num;
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8 }; M: ]7 }; H0 q - int Read_EncoderA(void)
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) r3 i5 Z6 m& W- u+ ]' C - int encoder_num;
2 Z5 D6 y; Y& A+ [, H - encoder_num = (int)((int16_t)(TIM4->CNT)); / [4 x- _% p$ R7 L
- //TIM_SetCounter(TIM3, 0);
! B2 O% ?7 p" U8 E - return encoder_num;0 {$ O' M5 s0 }% Z
- }
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置零函数* l, H* Y# {. ?7 D R1 t
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6 `+ u7 Z- O. k1 G# s - TIM_SetCounter(TIM3, 0);
, v0 v9 k( m8 [4 `8 ^5 ]# S' ] - TIM_SetCounter(TIM4, 0);
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