STM32F4(KEY) GitHub仓库:http://github.com/XinLiGitHub/STM32F4xx_KEY_Example5 v6 q5 H) C5 @8 p+ I
PS:博文不再更新,后续更新会在GitHub仓库进行。
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在实际的项目开发过程中,常常会遇到硬件电路的修改,然后修改的部分就需要修改驱动程序。想这样需求该来该去是程序员们最烦闷的事情(重复劳动痛不欲生啊~)。为了避免或减少重复劳动,就需要在程序的架构上下功夫。接下来以最常见的KEY驱动程序为例,进行程序结构设计。% V' x9 P2 N/ V! k5 c. e7 v- m, Q `
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- {1 x: J0 ?. k) |, A) I! E& n1,开发环境3 m* g. T- i: e8 ?9 I2 @
- A0 ^, j' n( I4 D6 X
1,固件库:STM32F4xx_DSP_StdPeriph_Lib_V1.8.0" p, k: h) D, ?2 o1 B2 F; J: }; H
2,编译器:ARMCC V5.06/ v/ L1 K# h2 n4 D' H' H
3,IDE:Keil uVision53 {/ {4 x# q( P! @3 ?9 k
4,操作系统:Windows 10 专业版) }6 U3 J2 |7 g* u% E3 M2 |8 o
! b$ g$ z- M# B: L1 N! w9 s3 S0 T3 S$ p8 I
2,程序源码
8 J5 |. W9 o, A, e: Z KEY.h文件
5 I( a2 t3 X/ R6 Q. C- /**
# W' Y! l: p$ m( J, B5 l - ******************************************************************************
& i( ~. q/ g1 X) x4 r! ^3 w - * @file KEY.h
+ `7 U" N. X( e1 H - * @author XinLi- C0 v& X7 w! r. ~% ^* \* ^; ]$ v
- * @version v1.03 P1 R* {8 N1 z: m. p+ S) R
- * @date 24-October-2017
7 v4 r* F K! Q8 J- l2 l% L9 \' A - * @brief Header file for KEY.c module.
' C) n9 @+ g; |. K6 e# J; q' p1 U - ******************************************************************************$ V1 \" e4 G4 f1 {$ t
- * @attention
4 [) i- _; \$ L, k, ~5 o - * V# `% F. _* n1 q
- * <h2><center>Copyright © 2017 XinLi</center></h2>7 M/ _' Q5 f8 R. a! D* V
- *" q! \+ M c7 T! S% Z9 ?. b, p
- * This program is free software: you can redistribute it and/or modify, W$ G# u5 g- a- ^
- * it under the terms of the GNU General Public License as published by
! Y% C2 D4 U& |' I - * the Free Software Foundation, either version 3 of the License, or& y& q( D0 y( u4 _6 ]
- * (at your option) any later version.6 u% R, V9 D4 f- B
- *1 H5 s$ }0 V. V
- * This program is distributed in the hope that it will be useful,
4 S+ y; H# Z: m( G) h0 f K) o% | - * but WITHOUT ANY WARRANTY; without even the implied warranty of
1 ?5 l" ^+ G% V6 ] - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
! D" s1 p- h/ p M/ j" V$ g f - * GNU General Public License for more details.
( w0 x% `; T R: ~5 C. I - *
, n& |6 w# R4 t# p - * You should have received a copy of the GNU General Public License, W, J( F1 ^ W' L
- * along with this program. If not, see <http://www.gnu.org/licenses/>.# J7 G O- \+ j; _) z; U7 ~& Z9 b1 C6 U
- *5 o% K2 L: n$ v6 ?' d
- ******************************************************************************1 k* R1 l8 ^3 Y' T% @- R
- */
6 P3 N" x, K4 j9 C
- G$ l# Z* s8 z- w) Z; C- #ifndef __KEY_H# F2 e, I4 j( O" n
- #define __KEY_H: ?" ? j9 {9 x8 l( Q0 H
# A# t$ w1 p. R' l: |! W* `- #ifdef __cplusplus
. k% T9 q( g1 v5 E g; L - extern "C" {8 }8 ]4 \( O; K- j! m# J- b
- #endif& e- ]. j5 D3 B5 Z% \9 r) M
' }) u" Z& t5 @; H+ L, d3 x- /* Header includes -----------------------------------------------------------*/
' |4 j6 g8 @% H a5 ] - #include "stm32f4xx.h"
7 U" j1 |* s+ t; a
8 _4 ~( R* i" M: R: h4 L: O- /* Macro definitions ---------------------------------------------------------*/6 B/ h3 Y; W+ |/ A
- #define KEYn (3)
% k7 G3 H- V0 J7 k5 k - . I9 O: J3 R6 d/ I1 f
- #define KEY1_RCC_AHB1Periph_GPIO RCC_AHB1Periph_GPIOC0 k1 y$ j* c" p$ g) w3 o
- #define KEY1_GPIO GPIOC5 o! v% K' U+ ]/ e) u4 r% w9 [
- #define KEY1_GPIO_Pin GPIO_Pin_24 z' k. C! f0 \) F* h( `' l% x
- ! s7 a% j$ p- V9 s& N! L' i, w9 P
- #define KEY2_RCC_AHB1Periph_GPIO RCC_AHB1Periph_GPIOC; G1 {, C4 Q. a* F( B
- #define KEY2_GPIO GPIOC# w! j+ E% k) s/ G7 @
- #define KEY2_GPIO_Pin GPIO_Pin_3
" k: b1 q5 w& O& K
0 T' m T G9 m( c( i- #define KEY3_RCC_AHB1Periph_GPIO RCC_AHB1Periph_GPIOC2 a' g( N- I. A; S9 y: Q
- #define KEY3_GPIO GPIOC# L( S2 N1 J/ q1 n/ ]
- #define KEY3_GPIO_Pin GPIO_Pin_47 S, z3 ^. G" n" w/ m7 z
" t( `. w5 b) \9 A c; P) z+ }5 \- #define KEY_RCC_APB1Periph_TIM RCC_APB1Periph_TIM27 Y+ d+ b# T/ X
- #define KEY_TIM TIM2
4 P( K7 D9 S) i$ s3 S$ j: u% g - #define KEY_TIM_Prescaler (83) /*!< Clock divided to 1MHz. */
, @( C4 \2 u; Z8 | - #define KEY_TIM_Period (4999) /*!< 5ms timer interrupt. */0 A4 l; `$ ^& v9 w8 L) y
- #define KEY_TIM_IRQn TIM2_IRQn
( {7 E8 z2 D/ z4 V - #define KEY_TIM_IRQHandler TIM2_IRQHandler
! @- y$ M- Y8 @# r - #define KEY_TIM_IRQ_PreemptionPriority (0)
5 H' u- M( f6 k( L" W6 K( \4 t- w - #define KEY_TIM_IRQ_SubPriority (0)
* @+ a K* w8 ~0 a( | - ; u, h/ ]/ o( ?! d' A& N/ N/ ^
- #define KEY_PRESS_STATUS Bit_SET$ V- E5 Q2 d: C, b1 ^% U$ Q; z2 B
- : y) J- U* `& x' q& m
- /* Type definitions ----------------------------------------------------------*/" L- }$ o: M* k9 @
- typedef enum* z; F [6 G, z4 B
- {
' N; R) y% ~; q& E, _ - KEY_Pin1 = 0,
+ S" `1 ?/ x2 M) ~ - KEY_Pin2 = 1,
( q4 ^& _4 h! _) Y - KEY_Pin3 = 2
1 |% H I. t D" g# r* `+ C2 m - }KEY_Pin;
7 J$ r* P) b [" O& v/ O- p6 ` - , [2 R7 }- ~$ s4 r
- typedef enum
; }6 @9 a# ? {6 M3 R - {- r1 u( i' V# c( Q( c; j; O' N8 R
- KEY_NoPress = 0,
p& C( t* P7 l! F- { - KEY_ShortPress = 1,
; T4 _2 L: U5 R& V - KEY_LongPress = 2, z! }5 P. `/ f) A& @
- }KEY_Status;% A' j2 [9 E6 I4 g4 [& s) I3 t0 C
" l7 d( s6 a+ L( d% z- /* Variable declarations -----------------------------------------------------*/
8 [$ R+ C# N& d7 l - /* Variable definitions ------------------------------------------------------*/: Y( l+ [/ L; g
- /* Function declarations -----------------------------------------------------*/
0 v* x: ^% h% q3 K0 V6 U - void KEY_Init(void);
3 |$ N; { P; t( E# H* G/ S: b4 ` - void KEY_DeInit(void);* s0 u1 ]% ~7 i$ i! U {: D
- KEY_Status KEY_GetStatus(KEY_Pin pin);
# M, M. A% r2 w- b. b- d - void KEY_SetShortPressCallback(KEY_Pin pin, void (*fun)(void));
" a/ A! m$ J. P! r - void KEY_SetLongPressCallback(KEY_Pin pin, void (*fun)(void));
; Y; t S& x9 i - void KEY_ClearShortPressCallback(KEY_Pin pin);
$ J; c: ^# m6 b. r$ n$ [! L2 W - void KEY_ClearLongPressCallback(KEY_Pin pin);" ^, m& S+ g m5 r3 O/ r+ K
- 7 v4 Y I) Y2 j7 {& E" f' y/ p) P
- /* Function definitions ------------------------------------------------------*/
3 ]. `3 @/ V: g8 a7 z" j$ s
" T9 @' y, P0 z8 x8 l$ s- u4 D- #ifdef __cplusplus
$ m5 w; y+ L$ c% p9 y( s - }8 d, e) f0 `' S* L
- #endif
" t9 C$ a. F7 v; V1 a8 \
2 f$ ^! Z) r+ F& ~* l- #endif /* __KEY_H */
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复制代码
/ t" x% d7 a1 Y+ q4 b, z7 _1 F KEY.c文件, \' g2 I! f% J
- /**- S2 l% ^4 Y) F& I8 C% d0 T4 I) g
- ******************************************************************************2 `; M7 z3 E* i+ ?1 m0 H5 [
- * @file KEY.c6 ] ~$ ~& A9 J* ?) m" u: v
- * @author XinLi& \6 F4 {0 U1 W. S* a
- * @version v1.0
$ h) W) n( e3 l/ [, q - * @date 24-October-2017! u2 t n9 X% A$ \
- * @brief KEY module driver.
9 d2 x9 Z$ H, {% o. q/ q - ******************************************************************************. d* O' A& Y* ]( j9 L# V
- * @attention
4 r7 L# o3 a: B$ | - *
6 x2 q; `! l1 i1 l5 O3 e - * <h2><center>Copyright © 2017 XinLi</center></h2>9 V, Q3 v- \1 D; M
- *; A7 |4 x8 [6 g! f8 {+ s ]9 Y
- * This program is free software: you can redistribute it and/or modify. y+ V2 q" E( u7 L* S8 b3 x
- * it under the terms of the GNU General Public License as published by
0 r# R5 T6 ]) c3 D7 V - * the Free Software Foundation, either version 3 of the License, or+ i% X; I% A- Z4 I" N
- * (at your option) any later version.
/ B+ K* o1 \$ y - *
: M- r, H+ o9 |( k- S1 U5 I; U - * This program is distributed in the hope that it will be useful,9 M% R, @) a. U' T. u
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
b* ^9 r3 H5 ? - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the- O, s( o5 s5 m2 G
- * GNU General Public License for more details.
3 _/ h9 L0 i& ?7 I8 q% Y) C% f - *
% e# h) M s( G) ? - * You should have received a copy of the GNU General Public License
& y) W& |. b8 S, A - * along with this program. If not, see <http://www.gnu.org/licenses/>.
0 r" } o! X: d$ a0 K" E - *
& }+ H6 U3 K+ {& a - ******************************************************************************; z- T2 F% E/ x# r0 I$ C
- */
% o2 x2 E5 `) J( K+ H - ' E; F) N a% V
- /* Header includes -----------------------------------------------------------*/
/ Z4 X/ [3 n9 m- L - #include "KEY.h"
4 z4 z! D% N5 L6 O - #include <string.h>
3 E+ H2 \) {" O! z3 N7 P0 L - ( x8 m j m, n! n' M
- /* Macro definitions ---------------------------------------------------------*/
, S1 `& o/ B# W, _ - /* Type definitions ----------------------------------------------------------*/; }* s9 C6 z* T5 v# c, {& t+ ]
- /* Variable declarations -----------------------------------------------------*/% b. M! u5 Z2 h2 J' H: Q0 Z9 f* N
- /* Variable definitions ------------------------------------------------------*/
/ l3 L; D- {. C' g! B3 e - static GPIO_TypeDef *KEY_GPIO[KEYn] = {KEY1_GPIO, KEY2_GPIO, KEY3_GPIO};
! l: o7 i- E( R, k - static uint16_t KEY_GPIO_Pin[KEYn] = {KEY1_GPIO_Pin, KEY2_GPIO_Pin, KEY3_GPIO_Pin};( w- @ T6 F6 m+ y% r% g
- static uint32_t KEY_RCC_AHB1Periph_GPIO[KEYn] = {KEY1_RCC_AHB1Periph_GPIO, KEY2_RCC_AHB1Periph_GPIO, KEY3_RCC_AHB1Periph_GPIO};
7 C7 b! f( F! ~, C - static __IO int keyInputHighCount[KEYn] = {0};
2 K4 |6 ~* R& C1 |' t - static __IO int keyInputLowCount[KEYn] = {0};
/ j: N7 Q; _" i" b @ - static __IO KEY_Status keyStatus[KEYn] = {KEY_NoPress, KEY_NoPress, KEY_NoPress};
# ?! H, p2 {- e6 @ - static __IO KEY_Status keyGetStatus[KEYn] = {KEY_NoPress, KEY_NoPress, KEY_NoPress};5 J6 c) v3 [) s0 j* [
- static __IO void (*keyShortPressCallback[KEYn])(void) = {NULL};: F: v$ `- X0 V4 {! O% Y: q
- static __IO void (*keyLongPressCallback[KEYn])(void) = {NULL};7 F( e- X3 Z" R3 U- Z: s
& N2 S( ~, k" }) c p- /* Function declarations -----------------------------------------------------*/
& ]# V& Q6 c2 `/ ~- y7 n - /* Function definitions ------------------------------------------------------*/+ g& R, d. I* A8 o
- 1 K% s5 s/ C! J- ^0 d* m, R
- /**. {( |6 g$ _9 C/ k [4 O3 z5 O
- * @brief Key initializes.
! u: I" d6 U. j y4 Q! O - * @param None.
7 O" K# |5 u9 d0 ] - * @return None., {$ E9 h, N3 Q9 G3 R0 d9 Q
- */
. B& d* |6 N; y) {1 U& U - void KEY_Init(void)3 a/ Y# p$ p) [; H6 y
- {
% a- e% T4 `3 i2 M5 W& u - for(int i = 0; i < KEYn; i++): |! w- k8 s6 M2 c# e6 _" F; M
- {
6 k; b5 o( Q) { - GPIO_InitTypeDef GPIO_InitStructure = {0};( d# y0 g, h: i9 R7 K
-
0 N9 J' A6 a# A" E - RCC_AHB1PeriphClockCmd(KEY_RCC_AHB1Periph_GPIO[i], ENABLE);$ N$ E' k( o4 \0 h s) t' ~- n
- 4 l% h6 O# P3 O
- GPIO_InitStructure.GPIO_Pin = KEY_GPIO_Pin[i];
2 U( O5 |" y7 i: e( S# j - GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN;
B! H9 [3 f+ C: ?4 l% t7 f- V( e - GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;
# J' P. ^; W3 u: x5 |& C - GPIO_Init(KEY_GPIO[i], &GPIO_InitStructure);3 {, x5 C7 o& E) P' @
-
8 S& J: ?1 j* D1 Y F: L+ `: n - keyInputHighCount[i] = 0;3 \, t$ o3 Z; g
- keyInputLowCount[i] = 0;0 Z, i6 q, A; N2 P3 \4 Z; Z: X
- keyStatus[i] = KEY_NoPress;
l: m4 }. h; |2 f; o8 z4 v7 K6 H5 q8 s. q - keyGetStatus[i] = KEY_NoPress;1 R# c6 m0 v8 v. t. i
- keyShortPressCallback[i] = NULL;
3 J/ D7 c: H2 U: _ C& x, _) }- v9 Y - keyLongPressCallback[i] = NULL;. b: i7 Q( b/ S% `3 _6 O
- }
. |1 w& r6 a) V! z! b -
! [( q5 J6 D4 W& d/ i - TIM_TimeBaseInitTypeDef TIM_TimeBaseInitStructure = {0};
9 W; @1 @7 R+ {% \ -
) [. v2 F/ J1 _! n" R, i* A - RCC_APB1PeriphClockCmd(KEY_RCC_APB1Periph_TIM, ENABLE);; W3 l z7 N2 @# j( T* R
- % ^4 ]* ?2 Z' D
- TIM_TimeBaseInitStructure.TIM_Prescaler = KEY_TIM_Prescaler;
% q+ g$ g8 B3 ]+ U. c7 B1 h6 Q - TIM_TimeBaseInitStructure.TIM_CounterMode = TIM_CounterMode_Up;) Z3 b2 s, }! Z' T: j
- TIM_TimeBaseInitStructure.TIM_Period = KEY_TIM_Period;
) `6 F4 w/ ?" {$ b& j, S: K4 e - TIM_TimeBaseInitStructure.TIM_ClockDivision = TIM_CKD_DIV1;' r$ x# K3 a6 v! M- q* I
- TIM_TimeBaseInit(KEY_TIM, &TIM_TimeBaseInitStructure);$ ?8 y4 q2 ?8 o3 @! C" b
- 6 s! E, G; ]# _& i( W: P) @3 ~8 J
- TIM_ClearFlag(KEY_TIM, TIM_FLAG_Update);
, c* K/ \ Q: F: _% m9 ^: M" } - TIM_ITConfig(KEY_TIM, TIM_IT_Update, ENABLE);
" \9 ]6 M. E9 Y+ d( E$ E - TIM_Cmd(KEY_TIM, ENABLE);
& U, |& a$ V1 q$ u/ u' p - # F/ v) N1 _- b( q5 }' r$ E
- NVIC_InitTypeDef NVIC_InitStructure = {0};
/ o5 z9 Q Q' {: J -
4 C4 c7 A/ \! {# [6 i" M- h2 K. a - NVIC_InitStructure.NVIC_IRQChannel = KEY_TIM_IRQn;4 f, ~5 L" w7 }" j: d. d
- NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = KEY_TIM_IRQ_PreemptionPriority;
1 m: A$ c5 h. |) Y3 X - NVIC_InitStructure.NVIC_IRQChannelSubPriority = KEY_TIM_IRQ_SubPriority;4 ~ ]# B$ A; Z. J& X' t
- NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
e7 q6 {- O6 I+ o! n/ E A/ s - NVIC_Init(&NVIC_InitStructure);
4 L! _2 f( F' K4 [0 h - }& a6 E% M* j7 \8 u J# ]+ X
- 5 z5 Z# h' `6 _. w7 L# o: l
- /**$ q( T0 l2 Y" B
- * @brief Key de-initializes.) x {; i o T
- * @param None.
1 c% o9 ]. V* N3 ? - * @return None.$ S$ h) k" R& @, e0 b ^% t
- */
h8 g( m' F) o - void KEY_DeInit(void)
- Z5 \7 A$ Y B5 u - {5 c Y$ z3 [0 k, [
- for(int i = 0; i < KEYn; i++)
T' Q/ z& {! [- U) K4 S. Y" b8 j - {& i% J8 m5 Y- k `2 H" s
- keyInputHighCount[i] = 0;; \% i& Q# A; E2 x- I% Z# Q# g
- keyInputLowCount[i] = 0;1 K# ^9 c" J1 o1 j
- keyStatus[i] = KEY_NoPress;
7 _ y1 Q" d8 @ - keyGetStatus[i] = KEY_NoPress;; A3 w( T- L6 d% I
- keyShortPressCallback[i] = NULL;
: E5 @- @& o* N - keyLongPressCallback[i] = NULL;# O( e. @9 {+ P! m( v) F& c
- }. B' f. o7 y0 g/ A+ ^2 ?2 x
-
; x; f: @% H9 f% {+ w - TIM_DeInit(KEY_TIM);- L4 B" l# F M5 K/ [
- RCC_APB1PeriphClockCmd(KEY_RCC_APB1Periph_TIM, DISABLE);; w! s5 n3 ~& S) e) m. x
- 2 y4 u' l4 ^( V! ]6 g; X" a E; K, t
- NVIC_InitTypeDef NVIC_InitStructure = {0};5 q0 }" ^" J2 Y
-
. R# f* n- n$ `: M+ a - NVIC_InitStructure.NVIC_IRQChannel = KEY_TIM_IRQn;
6 V; S6 ^9 X; d2 Z1 j) w, ~. T3 ~ - NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = KEY_TIM_IRQ_PreemptionPriority;
% K2 @- |2 T' j9 y3 a - NVIC_InitStructure.NVIC_IRQChannelSubPriority = KEY_TIM_IRQ_SubPriority;& |8 l& w. V' h* J+ r
- NVIC_InitStructure.NVIC_IRQChannelCmd = DISABLE;& D" G2 F$ L% m+ A% n% F! Z
- NVIC_Init(&NVIC_InitStructure);
* @$ x5 m$ C O1 r/ D; F0 \ - }5 w9 I% x, q7 u' |
- " t; b ^3 p; H! O) X/ @
- /**
7 N1 \( ~* t' a4 B* F" r8 l5 M - * @brief Get key status.
# ?: n" @. h% \% L* p; @, `1 p - * @param [in] pin: That key." x* Z* R+ B1 K; C9 B( I) [! R: G
- * @return Key status.
7 a2 @' y$ U: b4 g: a( C - */8 e+ |3 R: x# |5 l8 {- T- }8 [5 C
- KEY_Status KEY_GetStatus(KEY_Pin pin)! j- d+ r# t: R, U0 X- e0 }
- {
1 z9 J- g% a& a R% W - KEY_Status status = KEY_NoPress;- n/ P) ]" b/ T, k9 G$ y
-
2 K1 U+ |- b `. }- I3 O4 |4 G$ ? - if(keyGetStatus[pin] != KEY_NoPress)) r. N" b9 K8 l3 g0 f
- {
2 X! I% Y# U- L5 ?) _ - status = keyGetStatus[pin];
5 l% a( z Z$ c8 k! S a: I' a - keyGetStatus[pin] = KEY_NoPress;3 w$ u1 k; X$ _& X" ^# a
- }* ^- }$ y4 G9 S' F6 \$ Y# {1 c8 G
-
' l& C) z( n1 ^9 R, T - return status;
2 E* G9 u r1 S8 _* j9 c - }+ J; O/ H1 V, w' V
- , n6 f% ~' q4 t1 {' r. y
- /**: f1 e* O8 x5 w! w! }. g9 e# ^6 A
- * @brief Set key short press callback.
( I* m( k2 r1 B t0 x - * @param [in] pin: That key.
! M3 C6 V1 y/ t2 z% b - * @param [in] fun: Function pointer.. I. f; l1 P. A2 b* F
- * @return None.
& g# P$ S, A+ t4 K6 X. b3 _+ } - */ \. X# s8 `8 |* x
- void KEY_SetShortPressCallback(KEY_Pin pin, void (*fun)(void))
) q6 B( ~5 l/ M - {
" a; \- K; a: ~/ b - keyShortPressCallback[pin] = (__IO void (*)(void))fun;
, }, k4 {% d+ i1 Z( ]0 C1 ?/ S - }7 @, W- Y6 L# m1 {. m8 u' E$ m- e" g
- ; V! v: N1 J$ p- W' V: n4 e c d# i
- /**
) n; ?# D6 g" \$ f - * @brief Set key long press callback.9 \7 m& g9 j" K; r8 m+ d) ?
- * @param [in] pin: That key., F% [0 L5 R7 D0 y+ T3 K1 @0 X
- * @param [in] fun: Function pointer.4 n. L6 u# A: _5 M/ A: G
- * @return None.
( F9 C7 b6 l3 U; _5 J+ R7 p - */( r8 w/ g6 ]$ k/ f9 X
- void KEY_SetLongPressCallback(KEY_Pin pin, void (*fun)(void))5 l/ v* q+ i6 o, ~- o" S' P& o" l4 x
- {/ R' Y, w( P. L
- keyLongPressCallback[pin] = (__IO void (*)(void))fun; @+ R6 S7 l# v2 w8 n5 L; [
- }4 L4 c' H9 U% l: q& a7 S; Y
' d. n5 ~ N; x9 p. K0 s# L) p7 n- /**
) W1 B3 O* ~5 U, _2 h" U - * @brief Clear key short press callback.5 U/ | {$ H' l
- * @param [in] pin: That key.
: G" G* h$ u k# f0 ^( _ - * @param [in] fun: Function pointer.
# I+ P) M6 g- P' R0 x6 ?0 B1 F( ? - * @return None.. s' f7 q, S# ?" Q! J2 z% v, V8 u
- */ U6 n% k& O! i2 f+ {( t" W6 x
- void KEY_ClearShortPressCallback(KEY_Pin pin); \* \; A7 }8 H9 B( u
- {
+ P+ U- @! S% H! I! e. D; n+ T# \ - keyShortPressCallback[pin] = NULL;
' ~5 \" J+ i; y& Z& x" Y - }
; P+ v( e. c6 L/ }8 ~( E
( B$ k; \2 _! g( }8 V' m- /**- n: S! O1 L/ `1 _, u7 D7 s
- * @brief Clear key long press callback.3 ~; ^2 i- c" U: T! a
- * @param [in] pin: That key.& T1 P" g8 V4 K7 ^
- * @param [in] fun: Function pointer.& m1 N; j& W& @/ D, Q
- * @return None.
4 F" R; k* C+ G9 g) [4 J/ U% @0 k - */# v& O/ d7 C1 M, ~# n$ [
- void KEY_ClearLongPressCallback(KEY_Pin pin)
* R7 y! A9 M) n5 N8 [6 V- g - {
4 R3 m j+ D' ^3 c0 T) H - keyLongPressCallback[pin] = NULL;$ V, \6 k; J5 ~; [/ {
- }
6 A1 H" V' B# T( a+ d
3 z1 B* h; Q4 w5 B2 Q; C2 @- /**1 i% V# O; ?( ^: q
- * @brief This function handles TIM Handler.
. n. N: O5 x" S2 W+ P" }# R5 |; h6 M! b - * @param None.- |; x+ Z( P# T5 T
- * @return None.
' K5 L7 z l1 P7 H5 G1 l! f- B7 n - */5 ^! P8 }) O1 {/ P$ _
- void KEY_TIM_IRQHandler(void)* w, Z, c& Y+ F! @* u+ M
- {
* y7 i# e* n P# E5 X6 E! Y# z# \: I6 O: K# L - if(TIM_GetITStatus(KEY_TIM, TIM_IT_Update) != RESET)
5 h# d$ ~( a( B3 q( p! h. _" f: e - {" z! t5 Y3 b$ L# G/ T9 t7 _ i
- TIM_ClearITPendingBit(KEY_TIM, TIM_IT_Update);. \' e4 B6 v. R% T0 j7 S
-
) M. m/ N: ^! R I4 o4 n# b - for(int i = 0; i < KEYn; i++)
2 G6 p% a# Q8 I - {- p: ^0 `+ ^+ ~/ K
- if(GPIO_ReadInputDataBit(KEY_GPIO[i], KEY_GPIO_Pin[i]) == KEY_PRESS_STATUS)
; z7 P2 `. I" A( D - {
$ o% g, Z$ g7 g/ L# _/ ] - keyInputLowCount[i]++;; ~/ T N3 @ z" c x
-
* H1 v9 r4 ~2 e - if(keyInputLowCount[i] > 1)
4 G% x* x/ G3 {/ ?9 k+ s/ s4 y- w - {
* W! s( i1 B; @! m8 ?2 q - keyInputHighCount[i] = 0;
) e0 y3 z! r9 \/ Z! T# f8 ?# K - }
1 R9 S$ T: \# D - ' [. \ t1 F4 K( ]2 b4 E' v
- if(keyInputLowCount[i] > 100)/ M( N: l4 \ Y
- {
# C( J. J |3 s6 a* K - keyInputLowCount[i] = 0;
+ r5 [) s4 Z6 E# k+ }( e - keyStatus[i] = KEY_LongPress;, e" G, U# @1 @9 B, O* a/ c
- keyGetStatus[i] = KEY_LongPress;# [5 p" j' R" ]8 e1 K( t
- / o4 d8 V- T% b* R+ G% e: I
- if(keyLongPressCallback[i] != NULL)& V, ^! Y. e: y
- {, r( C) A! l$ `& V/ s0 x0 t6 Y0 y
- keyLongPressCallback[i]();, C2 m: p. @( y4 F- M
- }' P- ^( E% S o! d8 w" j+ J
- }4 e% p/ j1 H8 \8 w' Q+ ?
- }8 e) l: y! @/ \" x# w8 h
- else* X& X7 u! R1 P
- {: n- K# q9 J) W
- keyInputHighCount[i]++;
' a1 d* u& v/ X -
8 J ?+ I/ e: i% D* U - if(keyInputHighCount[i] > 1)
3 j# y4 d3 ]5 V. [( I - {) K9 g+ g1 P G% x4 c
- if((keyStatus[i] == KEY_NoPress) && (keyInputLowCount[i] > 1))+ z, s( i6 j- w) ]
- {
K+ F# q! b/ P- P5 h - keyInputHighCount[i] = 0;
1 T/ E) `& m% h - keyInputLowCount[i] = 0;
$ k6 `( p4 i8 I3 [$ y7 C, Q - keyStatus[i] = KEY_ShortPress;- v& r J2 Z! W5 S$ C
- keyGetStatus[i] = KEY_ShortPress;. P0 k2 g' z7 a
-
) _# f" `" ]5 `1 S - if(keyShortPressCallback[i] != NULL); \* h o" I, N! M- @5 b
- {( m0 V4 y9 \5 ^. o ?
- keyShortPressCallback[i]();
z$ o2 W5 d: Q+ X - }
! H7 X, w9 ]7 T) o- c6 ] - }: w ?1 ^/ Q/ y8 X
- else
% l# G N- Y" z& J: b - {
% `1 Z8 R3 t, X- a - keyInputHighCount[i] = 0;5 @ {5 @" f& y, x+ w; X( r1 Z
- keyInputLowCount[i] = 0;4 @' |1 [+ w6 D! _! U
- keyStatus[i] = KEY_NoPress;
. @0 R1 Y3 B, c, [% {* m% H ^ - }
, `. O6 m; N! q: p2 c8 v - }( w* b1 d, |6 r; b, n8 o) K
- }
4 @: h, V) Y% V: _/ ?; Z# l - }% T* H0 C9 y$ `; K. j1 c
- }& [* X3 K6 X* C9 }
- }
8 s$ s/ @- K7 j9 V" B
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& S7 M$ S# p7 ~# U4 w$ o2 w main.c文件: U- e; ^; a- s Y
- /**+ }7 T* s" _& l# J* [5 Q/ p
- ******************************************************************************
2 k* w% p/ _3 G0 _% b0 O$ k7 l+ D: T - * @file main.c
" G3 }7 X+ s9 `' v d5 B5 o+ g" | - * @author XinLi& B7 f4 P+ J4 v' i& d; `) H8 S
- * @version v1.0
+ c" W/ B" Q- f$ ^6 \+ q* E# x9 O - * @date 24-October-20171 {# T1 s: J! v+ @* z5 f! t
- * @brief Main program body.) O( G0 i5 H4 M" c9 V9 L
- ******************************************************************************% F. Z- B) J! i: y
- * @attention" b- ? K8 o1 q& |, p+ a+ k
- *8 v1 m9 W; o; _- |+ ~" ]; M
- * <h2><center>Copyright © 2017 XinLi</center></h2>4 E3 F8 p# Y( m: q6 O
- *1 E% H/ B5 A) {+ j9 h0 J
- * This program is free software: you can redistribute it and/or modify: Z P; k7 ~; p& r0 _
- * it under the terms of the GNU General Public License as published by
. F" |* ^+ M# }% | - * the Free Software Foundation, either version 3 of the License, or/ q7 p/ C" m1 m* X I& m: ~
- * (at your option) any later version.
: P! [+ x( w( _( S - *
% W; w5 }+ R: _/ { - * This program is distributed in the hope that it will be useful," |& A+ _ [& }
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
5 `" s0 {4 J5 n. g( Y8 E& H& [ - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
; E' T! F$ { \2 {" |" e A - * GNU General Public License for more details.
, h- p# W' w; g8 }! m; }9 d5 a - */ M8 x; {3 T4 ?+ Q$ L
- * You should have received a copy of the GNU General Public License+ R! Z" w5 c% Y' u1 \3 [
- * along with this program. If not, see <http://www.gnu.org/licenses/>.
4 T) \8 o/ y7 N - * @$ j4 Z- X+ a2 H8 X7 h5 p
- ******************************************************************************) X6 D+ [7 B2 S; B! e+ E9 @
- */
5 a3 B+ v- n2 ^, v& A0 x - / l, d. f* _) p" d6 k$ f5 |, u
- /* Header includes -----------------------------------------------------------*/% A) U) K8 C/ J
- #include "main.h"
# p' @# `3 Q/ [0 J - #include "KEY.h"# N- t: ~+ f; W# D; A/ z
: Q9 I! V- p `9 P- /* Macro definitions ---------------------------------------------------------*/
/ b9 S0 k& ^7 F0 U# S% w' p) V. m- O1 ? - /* Type definitions ----------------------------------------------------------*/
0 h+ | \# @5 g7 U3 d) A - /* Variable declarations -----------------------------------------------------*/7 O/ I* I0 T- l$ s U
- /* Variable definitions ------------------------------------------------------*/
0 T8 o$ W; J. D! B0 d$ [* v - static __IO int key1ShortPressCount = 0;
+ H8 p% [$ }( A. ^3 \3 D - static __IO int key1LongPressCount = 0;. J$ Z) ^9 Q$ b: H) Y* X) a
- static __IO int key2ShortPressCount = 0;0 Y$ ~. @- A" F* D$ z6 _
- static __IO int key2LongPressCount = 0;7 Q$ _4 J0 `8 g; J+ j
( L. e* S% T6 F% o( G5 b( F6 I- /* Function declarations -----------------------------------------------------*/
9 U4 a3 G& y8 H8 ]! _& Q5 [ - static void key1ShortPressCallback(void);
5 E" U1 X/ g! x' E - static void key1LongPressCallback(void);
- H& T# U2 r# ~) }, E) z+ T - 6 i% \0 i1 A; m6 s* s3 ^
- /* Function definitions ------------------------------------------------------*/
5 ~' ~3 p& n; i% ]( {1 ~- v, s X - 9 U* ]6 o* P+ D {: e
- /**
; G, o& O% g" O z- w M - * @brief Main program.% a6 l A. m. W4 a1 Y" ?, m1 Y; L
- * @param None.7 g( |$ n0 F g
- * @return None.8 M* s* Y% g+ C. \) u
- */( V' U( O8 x/ E6 F! a7 r4 a) e
- int main(void)
5 p* i* X9 n# I; ~' Y" S - {& @8 ]- u6 D+ q4 k
- KEY_Init();
4 c7 i" x, |# E - KEY_SetShortPressCallback(KEY_Pin1, key1ShortPressCallback);& {7 H2 N; U, t1 X: e$ [& ]
- KEY_SetLongPressCallback(KEY_Pin1, key1LongPressCallback);
5 K; K F2 B$ ]8 {: ` - 8 @- E% p1 J3 p- a$ i8 r, T" P) k
- for(;;)7 ^9 G7 L. F( @6 s% O6 f7 ?
- {
. j+ ]6 M: h+ |) n2 w - KEY_Status status = KEY_GetStatus(KEY_Pin2);
* ]0 j6 l. ^' x9 m- e7 h9 |( Y0 m -
% f3 F' b3 g* \& ~4 }7 S# N1 k$ F8 [ - if(status != KEY_NoPress)0 O+ P- V! q9 q2 ^* e0 E; ]
- {2 a; [# v" s0 y, Y
- if(status == KEY_ShortPress)
j; U9 ~+ ]- z - {/ P8 {) M* k* F. A: o
- key2ShortPressCount++;( J8 D2 o% \- @: l, Q
- }
7 W+ j* o E% h/ r0 X3 Y+ ]9 u) v - else" S4 s5 ?( o' n6 }- E
- {9 V( [" Q" g% R4 l! L; ?. L0 h
- key2LongPressCount++;2 w9 r, e4 c/ A# i6 b# q- M5 ?
- }
2 T7 b- x' s/ D: o K( ^ - }: B2 e. x' S. A* Z9 l/ d" ] Q P4 Z
- }
5 \# @/ l1 O! A x - }, y8 c o" ~+ i( p: T- ?
3 C, K. @/ \/ N4 R; K- /**
" N- {8 O' h9 O' l% A1 R - * @brief Key 1 short press callback.
/ r4 e5 C8 r( Q( [* K& o - * @param None.
* V$ s0 N( D7 m3 h* c* o - * @return None.7 u0 M/ g% A7 U' h r
- *// l9 ?$ ?0 l- k7 C9 W1 u
- static void key1ShortPressCallback(void)
/ e& x2 Y5 l" l, t$ ?7 } - {! i8 s6 c2 E# W* D/ z* }
- key1ShortPressCount++;) q, [ Y6 b- A' Z" N/ i/ p
- }/ f r+ @2 f0 D2 m7 k- {
- B T( v+ \ m# H4 ~- /**3 L+ u' ?! d, v' C; Q( _
- * @brief Key 1 long press callback.+ v0 T v/ Y! |$ F+ B
- * @param None.6 j3 D d! Q6 F0 _& S0 i9 l
- * @return None.
! ~0 ^/ ?2 ?9 q9 ~8 y4 { - */2 t1 `: [; C: o& q. L6 L
- static void key1LongPressCallback(void)0 d. i& m# _" ]* ?& d3 G: M
- {2 r1 L- }1 O# m) m9 O3 k# i" H
- key1LongPressCount++;
% Q. e0 c+ |0 I2 H8 {0 a: e - }1 u0 H& ^/ ~- W3 G. F" Q! P$ U0 s
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1 w/ a, m' R, s3 J7 J7 \9 Q( D3,注意
, B; Y1 F7 N8 q! u4 z- Q2 c
4 @7 ^6 _/ u8 P( T 修改接口需要注意,按键的检测电平、使用的TIM和增减按键的个数。对应修改KEY_PRESS_STATUS宏、TIM时钟配置函数和源文件的变量定义。! _' H; [0 w0 k$ o' f
5 C. g7 v# |0 }- ?/ h
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