初始化代码- b7 u- o4 N' k- q
- void Encoder_Init_TIM3(void)$ i7 m2 a6 Y* }* B4 X
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- TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
7 g4 y8 ^* J2 R: U - TIM_ICInitTypeDef TIM_ICInitStructure; ; b/ L3 J1 ~& \9 @( S$ @
- GPIO_InitTypeDef GPIO_InitStructure;4 s/ P0 I9 f" ?' @ J
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6 C. z3 c6 Q4 {5 @+ ?7 t - RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);//?????2???
( x9 ?# A" k( @: C - RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);//??PA PB????1 i8 F/ [! ]4 h+ V
- RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
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- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; //???? PA15# y1 D4 g; e; e6 {
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //????
5 `8 w) S1 C) ] N' [+ { - GPIO_Init(GPIOA, &GPIO_InitStructure); //?????????GPIOA& k4 K; O7 F" j
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0 m4 P" R( \" b - GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7; //???? PB3: C5 d. i& l8 I& b: g1 i) g
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //????8 Z: r# m2 G* r) }# t/ ?. ]1 I
- GPIO_Init(GPIOA, &GPIO_InitStructure); //?????????GPIOB
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- TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);
8 {/ ~7 _4 D c* q - TIM_TimeBaseStructure.TIM_Prescaler = 0x0; // ????
4 Z4 I2 J. @. \4 R* q. f0 S1 O% | W. k, M - TIM_TimeBaseStructure.TIM_Period = 65535; //??????????
- T4 l& t- P* g/ B' {5 R0 R - TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;//??????:???* D6 P( C: I8 {' x1 {! K( H
- TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;//??????
7 f4 [5 Y( y6 p6 {" _# S - TIM_TimeBaseInit(TIM3, &TIM_TimeBaseStructure); //??????20 g) \8 v) }. p( s# Y$ ^
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7 w5 _" Z( R* `0 u, Z7 w# l/ T5 Q+ C - TIM_EncoderInterfaceConfig(TIM3, TIM_EncoderMode_TI12, TIM_ICPolarity_Rising, TIM_ICPolarity_Rising);//???????3" _) D: U" u: `' W, x3 H
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- TIM_ICStructInit(&TIM_ICInitStructure); //?TIM_ICInitStruct ?????????????, q8 x$ S5 N+ r
- TIM_ICInitStructure.TIM_ICFilter = 10; //???????
. E5 L! k) y( B0 k - TIM_ICInit(TIM3, &TIM_ICInitStructure);//?? TIM_ICInitStruct ???????? TIMx
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- TIM_ClearFlag(TIM3, TIM_FLAG_Update);//??TIM??????
( ]' C& e% @0 G2 o - TIM_ITConfig(TIM3, TIM_IT_Update, ENABLE);//???????
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- TIM_SetCounter(TIM3,0);
7 o/ P7 b% n% D - TIM_Cmd(TIM3, ENABLE); //?????2
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, I, ~* ?- } z( N- @ R/ w - void Encoder_Init_TIM4(void)
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7 R$ A! Y; |, W) n" v - TIM_TimeBaseInitTypeDef TIM_TimeBaseStructure;
, O3 ^- ~4 @- K* ~ - TIM_ICInitTypeDef TIM_ICInitStructure; . r+ j: C4 C7 [* e. m& G
- GPIO_InitTypeDef GPIO_InitStructure;3 v& G5 R0 K' a9 [, ?
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+ O9 i* E+ Y9 f9 E - RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);//?????2???
b( A! T3 [1 z, X' Z( l - RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);//??PA PB????
8 [! G% t% d! _: {, I, g9 X) a2 R - RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE);
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1 T6 X; j5 f) n3 \: e% U - GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6; //???? PA15) {6 W. k2 q7 m& [; n
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //????0 u: O8 |/ n1 k3 W4 P* C# @2 B2 h4 o3 N
- GPIO_Init(GPIOB, &GPIO_InitStructure); //?????????GPIOA6 c1 I- I( }+ u- v( b. Q
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- GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7; //???? PB33 c* s, v7 Y+ T$ z9 ]' o$ j: \) t7 A: i0 q
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //????
% u. h/ l* X& N+ _; A; p9 U - GPIO_Init(GPIOB, &GPIO_InitStructure); //?????????GPIOB
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- TIM_TimeBaseStructInit(&TIM_TimeBaseStructure);! M2 u/ x' ^8 f, e/ H8 H0 r
- TIM_TimeBaseStructure.TIM_Prescaler = 0x0; // ???? 2 d5 M G, Z0 g& O1 a4 u# P6 g
- TIM_TimeBaseStructure.TIM_Period = 65535; //??????????% z! t- r5 H# k
- TIM_TimeBaseStructure.TIM_ClockDivision = TIM_CKD_DIV1;//??????:???0 D) u/ e, @9 y8 A" N6 B( t
- TIM_TimeBaseStructure.TIM_CounterMode = TIM_CounterMode_Up;//??????
; R1 c* b D1 o( B# D p - TIM_TimeBaseInit(TIM4, &TIM_TimeBaseStructure); //??????2
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( `% z! O! ^4 l/ ] - TIM_EncoderInterfaceConfig(TIM4, TIM_EncoderMode_TI12, TIM_ICPolarity_Rising, TIM_ICPolarity_Rising);//???????3. P" @- U8 Q$ P7 A( a, F
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- TIM_ICStructInit(&TIM_ICInitStructure); //?TIM_ICInitStruct ?????????????
" `. }0 ?9 H: Y. x6 U - TIM_ICInitStructure.TIM_ICFilter = 2; //???????& h2 j% p7 ~' s, r1 {' g
- TIM_ICInit(TIM4, &TIM_ICInitStructure);//?? TIM_ICInitStruct ???????? TIMx8 c7 J, v8 n1 H( q3 A6 B: t* T
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- TIM_ClearFlag(TIM4, TIM_FLAG_Update);//??TIM??????3 g. A& \# w0 z g& p2 f1 V
- TIM_ITConfig(TIM4, TIM_IT_Update, ENABLE);//???????- B" h3 s; Z5 M3 w) a. U2 r0 Y- Z
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- a) c% p3 {1 X, H$ ~' I - TIM_SetCounter(TIM4,0);
6 [" u$ ]( r9 b9 l8 ]' j! \ - TIM_Cmd(TIM4, ENABLE); //?????2) t* x3 Z& T- B0 l
- }
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0 @( m6 K- v* D! A9 \4 O读取函数
4 r1 x$ s( {6 i, A9 O- int Read_EncoderB(void)
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- int encoder_num;
$ Z5 p, d; w! X T - encoder_num = (int)((int16_t)(TIM3->CNT)); 0 [, \9 I) J* {2 ~
- //TIM_SetCounter(TIM3, 0);. h; f$ L6 ^+ o7 p& k% L! T
- return encoder_num;: x; y6 J' h! i; Q
- }
" l) u* n* [& F- f. C - int Read_EncoderA(void)
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. q5 j6 `* F5 @* m - int encoder_num;
# G4 z/ w. G6 ^ - encoder_num = (int)((int16_t)(TIM4->CNT));
. I% j9 c% W" G, }$ x) T - //TIM_SetCounter(TIM3, 0);! j& A( K* e/ J$ t" E8 u
- return encoder_num;4 j: i6 M( ? R$ x$ H8 S
- }
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: U8 G$ u5 j" w1 [" L' \置零函数
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2 m4 T0 `7 Y! ~0 F# b# g - TIM_SetCounter(TIM3, 0);
" j- `% M: x. O* k3 _ - TIM_SetCounter(TIM4, 0);
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