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STM32F4(LED)

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XinLiYF 发布时间:2018-3-9 20:26
STM32F4(LED)
GitHub仓库:http://github.com/XinLiGitHub/STM32F4xx_LED_Example( t# ^9 m/ x% D& ?
PS:博文不再更新,后续更新会在GitHub仓库进行。
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; O7 ~% ~9 J7 k4 c/ H: H* |       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LED驱动程序为例,进行程序结构设计。; s6 f6 c2 w* F, d3 ~, ~

6 E# n& Y% `  n8 u8 K5 `9 W  I1,开发环境
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8 j1 P0 V2 S& s& b4 R
     1,固件库:STM32F4xx_DSP_StdPeriph_Lib_V1.8.0
3 y! ^: M3 U: p1 R! D& f5 ?* ~     2,编译器:ARMCC V5.06
& G/ p5 t1 B1 K! m: \     3,IDE:Keil uVision5
" x% S" C  I' T+ B     4,操作系统:Windows 10 专业版
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9 I! n4 [' f) m2 Y1 f4 N2,程序源码7 E2 v* a# h6 K" j; \6 ?
      LED.h文件
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  1. /**# d0 g* n& K" d# B
  2.   ******************************************************************************. x2 ]8 H3 \& H- I6 q
  3.   * @file    LED.h2 y/ U8 }8 \& m3 _- w( Z
  4.   * @author  XinLi- J$ }7 u+ z  N( l3 A0 w/ y  t! N# }
  5.   * @version v1.0
      o; h( g4 R' D- }$ Y
  6.   * @date    24-October-2017: z, y# e1 c( {2 f! r  p
  7.   * @brief   Header file for LED.c module.$ ~# l% T0 d, `$ e2 d
  8.   ******************************************************************************+ x" }/ ~! `8 K1 Q+ ^5 {
  9.   * @attention
    9 t7 x1 r5 E5 }2 C/ O
  10.   *
    ! t; ?1 \9 i  q& p9 t
  11.   * <h2><center>Copyright © 2017 XinLi</center></h2>+ ^: H: w$ k/ L, }* R
  12.   *
    ) b3 E. U* x% A4 ^: B% ~
  13.   * This program is free software: you can redistribute it and/or modify3 W: f( p  h7 c9 |
  14.   * it under the terms of the GNU General Public License as published by, _" y+ M1 D8 ^: p& m9 X/ _* B) t) a
  15.   * the Free Software Foundation, either version 3 of the License, or
    ! D* u1 B/ e, V% C  E
  16.   * (at your option) any later version., A- u, {$ q( u8 {/ U7 ?
  17.   *
    4 f- i( w3 {& F: z# i: X$ g; y
  18.   * This program is distributed in the hope that it will be useful,3 H. _% c1 g7 \
  19.   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    ) D/ U, }, J6 q  O0 M; W% @
  20.   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the: H8 r: g$ E/ L7 n
  21.   * GNU General Public License for more details.3 L, P# u& X6 A$ r  P1 v- M
  22.   *  m1 e) A1 q: C1 n" G1 C& ^6 D2 ?
  23.   * You should have received a copy of the GNU General Public License% [) @: S' ?+ L2 y2 F+ \2 N
  24.   * along with this program.  If not, see <http://www.gnu.org/licenses/>.5 _/ [' ]8 @& h2 I; O% V
  25.   *
    - p1 p# U* x, B3 Y
  26.   ******************************************************************************% N0 K$ r  f& l* R! W% @% p
  27.   */
    9 J0 Z/ ?- t% y
  28. ; {0 i' V- p/ q, B8 P4 _: H7 o2 U7 r- K
  29. #ifndef __LED_H
    ' ^( M3 W+ [6 j8 _
  30. #define __LED_H/ Q$ y! ^3 o; ]2 n* P( b5 C
  31. % ^8 V, p) t6 t& n
  32. #ifdef __cplusplus
    8 d/ r+ J9 R2 |+ \
  33. extern "C" {5 q: r4 E$ T- V5 l7 U( R
  34. #endif" y( F+ I7 p& R- c' F
  35.   ?$ i+ Q# o+ i8 ]
  36. /* Header includes -----------------------------------------------------------*/; R; Y6 j( @$ |/ y# _, B
  37. #include "stm32f4xx.h"& N$ I# O* L& Y# k

  38. 9 O  D3 y7 ?4 s; Q) Z# X* {
  39. /* Macro definitions ---------------------------------------------------------*/9 o) o" H: d7 Q, {" V5 ^
  40. #define LEDn                      (4)
    0 g; r3 m4 C* J% x8 j% J/ U$ U

  41. ( s& w. U8 |5 q7 B: L* V
  42. #define LED1_RCC_AHB1Periph_GPIO  RCC_AHB1Periph_GPIOC
      n9 W' K& q+ T0 `
  43. #define LED1_GPIO                 GPIOC8 J3 L# f: H2 M& k# g$ X) R* q+ z
  44. #define LED1_GPIO_Pin             GPIO_Pin_05 x8 [# Y2 ?5 F, i3 p

  45. + B4 K% u$ G3 m, z' [" _
  46. #define LED2_RCC_AHB1Periph_GPIO  RCC_AHB1Periph_GPIOC
    2 A7 z: {/ k' e0 p. Z$ D% H
  47. #define LED2_GPIO                 GPIOC+ P( d: U2 `* m2 T9 f* N# d
  48. #define LED2_GPIO_Pin             GPIO_Pin_18 d8 a7 @% k  F4 C. e

  49. 5 d2 \( |% C" ?% r! {0 n' K. I0 \
  50. #define LED3_RCC_AHB1Periph_GPIO  RCC_AHB1Periph_GPIOB9 m. p; x$ E4 m2 {
  51. #define LED3_GPIO                 GPIOB$ L$ p; R0 J/ q1 ]: J% @& \
  52. #define LED3_GPIO_Pin             GPIO_Pin_3
    7 h& y( n3 E. I4 V

  53. 7 U( c$ t4 }3 M; r+ r  L8 \
  54. #define LED4_RCC_AHB1Periph_GPIO  RCC_AHB1Periph_GPIOB7 [# Q$ [* J* m7 P
  55. #define LED4_GPIO                 GPIOB
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  56. #define LED4_GPIO_Pin             GPIO_Pin_49 r( K9 Z6 S) O
  57. ; P" P. Z. y! s# T9 M
  58. /* Type definitions ----------------------------------------------------------*/
    ' j% @. h3 I6 b
  59. typedef enum. @) `, a* h3 e9 q& @# R
  60. {: {) H( u# Q2 _+ V/ m2 `
  61.   LED_Pin1 = 0,
    1 _/ T0 U$ s% S( f2 Y2 j. Y1 N' {' m
  62.   LED_Pin2 = 1,; [$ e' c8 ~; A; m% r" ?& W) }+ V: [
  63.   LED_Pin3 = 2,
    ) G7 z# X% c8 E4 k3 v
  64.   LED_Pin4 = 3
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  65. }LED_Pin;1 \0 }- c: Y3 Q: A' I1 A1 \
  66. 0 A2 {& j) t" H* g
  67. typedef enum
    6 u$ Y8 [. C- l  K
  68. {: ]$ W, a9 E3 O. P- V
  69.   LED_Off = 0,+ ]5 W8 R% h5 x/ o( T, ~
  70.   LED_On  = 1% e3 X( h3 O7 H
  71. }LED_Status;0 h' t5 C$ ^0 d9 P( R/ _5 V: ~9 |

  72. % z* s( f( ?5 V/ z$ @; X
  73. /* Variable declarations -----------------------------------------------------*/8 P" x/ w, ^+ x) Q3 F  z4 u
  74. /* Variable definitions ------------------------------------------------------*/* e2 |5 e* |6 K* N; l( _
  75. /* Function declarations -----------------------------------------------------*/
    . ^; ?3 D& Q) `9 w
  76. void LED_SetStatus(LED_Pin pin, LED_Status status);
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  77. LED_Status LED_GetStatus(LED_Pin pin);
    ; {% K* R! m8 i+ F$ Q3 }
  78. 0 `8 X5 u: D6 ]2 T3 d: I. c7 j
  79. /* Function definitions ------------------------------------------------------*/9 N  f4 Z1 q1 u- \
  80. + U% ^( T! r  F
  81. #ifdef __cplusplus
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  82. }0 t# l6 A. E! k, I4 t5 Q& M
  83. #endif) \$ ~' k3 Y2 }3 X' Y
  84. " q  a9 Y  I  G; y  H
  85. #endif /* __LED_H */+ W) L  M: U( g, {* |
复制代码

% f( E8 U1 l, p; N  {2 t" Q      LED.c文件1 C! Y6 t- |! k  j- V9 ]
  1. /**
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  2.   ******************************************************************************5 y& `) `0 ?0 B
  3.   * @file    LED.c
    2 X1 y4 U- b, c( I: B/ n! f
  4.   * @author  XinLi: y+ z+ G" J4 f3 m
  5.   * @version v1.05 l) |. ^8 _4 V) G9 j' T
  6.   * @date    24-October-2017# `6 t2 u! A* ^! B4 [# N" C
  7.   * @brief   LED module driver.
    : r  a$ \" q/ z5 c
  8.   ******************************************************************************. C' p5 P' W$ p$ u* @- [: e
  9.   * @attention8 A/ a6 q0 S/ H1 |; a
  10.   *
    $ m7 M# w1 u: f! [/ [: I# q: b
  11.   * <h2><center>Copyright © 2017 XinLi</center></h2>% f' C# N3 [9 g* x6 W
  12.   *1 u: |$ }* m% K
  13.   * This program is free software: you can redistribute it and/or modify. a$ ~9 F! x8 d1 K9 F# h- \0 D" [
  14.   * it under the terms of the GNU General Public License as published by
    ) ?! q1 h1 s3 Q  U8 V; b) _
  15.   * the Free Software Foundation, either version 3 of the License, or
    . P2 L* C: c8 s6 ]( y) d7 ^$ d
  16.   * (at your option) any later version./ ~4 F: Z3 u0 q4 X, c: V
  17.   *
    : `; {& `7 s- z# i
  18.   * This program is distributed in the hope that it will be useful,
    - ]3 o" V' g2 R' i% X( w* C9 X2 L
  19.   * but WITHOUT ANY WARRANTY; without even the implied warranty of
    - n  K, q9 C3 ]& M6 D
  20.   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    5 n2 B1 W: P3 H1 ^4 Z' p) `
  21.   * GNU General Public License for more details.: S+ y" l0 @6 Q  w: G, W5 Y
  22.   *
    ! h- p1 ?0 ^; z- T
  23.   * You should have received a copy of the GNU General Public License3 E5 \+ ~& z! w$ H  A
  24.   * along with this program.  If not, see <http://www.gnu.org/licenses/>.2 y# c& i9 c' u( J3 P' D! g
  25.   *
    " P  {4 N' ~/ L  Q
  26.   ******************************************************************************
      p8 t( ~0 C+ x
  27.   */( Z; E! S8 r0 y- a, S

  28. 5 k6 n: _- U" a. ~9 c$ y& n
  29. /* Header includes -----------------------------------------------------------*/+ O. h% O% u+ @
  30. #include "LED.h") W' j8 z0 y7 E  v
  31. #include <stdbool.h>
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  32. 9 \* K' f( n/ V5 `' e6 P( P
  33. /* Macro definitions ---------------------------------------------------------*/
    ; Z+ n7 V, `7 v3 Q, l7 u
  34. /* Type definitions ----------------------------------------------------------*/
    ( T6 n2 R- I# J/ V+ a
  35. /* Variable declarations -----------------------------------------------------*/
    2 h' h6 p2 w) c' n
  36. /* Variable definitions ------------------------------------------------------*/4 X$ p, c0 B5 z/ K: s0 }
  37. static      GPIO_TypeDef *LED_GPIO[LEDn]                = {LED1_GPIO, LED2_GPIO, LED3_GPIO, LED4_GPIO};
    : B$ X0 G% D/ \* {4 {
  38. static      uint16_t      LED_GPIO_Pin[LEDn]            = {LED1_GPIO_Pin, LED2_GPIO_Pin, LED3_GPIO_Pin, LED4_GPIO_Pin};
    ; J+ n4 x1 ]9 `
  39. static      uint32_t      LED_RCC_AHB1Periph_GPIO[LEDn] = {LED1_RCC_AHB1Periph_GPIO, LED2_RCC_AHB1Periph_GPIO, LED3_RCC_AHB1Periph_GPIO, LED4_RCC_AHB1Periph_GPIO};
    % k) [- a0 `1 K1 n: X7 v
  40. static __IO LED_Status    ledStatus[LEDn]               = {LED_Off, LED_Off, LED_Off, LED_Off};- x* V) R* R2 O6 \) }( \* g7 n
  41. * N2 E+ T5 i* C
  42. /* Function declarations -----------------------------------------------------*/
    % q  I/ m4 G2 a% U% G/ x
  43. static void LED_Init(void);# U1 X# Z  n3 r& m7 |$ Z* E, D
  44. 6 P8 D; M9 M% I" D( H& t
  45. /* Function definitions ------------------------------------------------------*/
      Q* I4 [, t* T, u& A' {
  46. + D6 E. p- N, R, Y' T. [0 Z3 h
  47. /**
    3 h1 V9 Q# w. a2 Q- s" N5 l8 w
  48.   * @brief  Led initializes.6 w9 N8 v% L- V* O9 B/ }
  49.   * @param  None.9 Z2 M$ T7 S  E) T# b  U) L4 r
  50.   * @return None.
    7 L, E/ w' W/ D0 W6 c( a
  51.   */$ O* E8 Y) O; F, ]& R( Z2 }
  52. static void LED_Init(void)
    . E: W* N9 T8 }& X. s2 q  W
  53. {
    ! G! [- U: h8 [
  54.   static bool init_flag = false;$ s3 X: y, O4 M# M& D- B
  55.   4 B5 O/ y# ]8 p+ y; ^! v: R
  56.   if(init_flag == false)
    5 v6 U5 k' P3 }. D
  57.   {
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  58.     init_flag = true;
    8 ?+ x' S+ u4 K% T7 Q
  59.    
    ( j: a; p6 _5 n
  60.     for(int i = 0; i < LEDn; i++)( K6 J/ O0 X8 S6 [  t, i
  61.     {' ?! X% L. A% g# \3 ^! w6 R
  62.       GPIO_InitTypeDef GPIO_InitStructure = {0};
    1 H% M- ~1 Q. k( ?3 T
  63.       - ^9 Z; K# x  W: o! x# ^. v: b& C
  64.       RCC_AHB1PeriphClockCmd(LED_RCC_AHB1Periph_GPIO[i], ENABLE);
    " ?, ~( Y" I: w. E/ W
  65.       
    ' k1 l/ _. T- [3 n8 ~" l2 }2 [
  66.       GPIO_InitStructure.GPIO_Pin   = LED_GPIO_Pin[i];
    4 D' O, f$ M# Y
  67.       GPIO_InitStructure.GPIO_Mode  = GPIO_Mode_OUT;
    % z6 L7 u' `. V7 l* g& G! J
  68.       GPIO_InitStructure.GPIO_Speed = GPIO_Speed_100MHz;4 D1 G: h( r! i# W/ R3 a3 l& E
  69.       GPIO_InitStructure.GPIO_OType = GPIO_OType_PP;5 t: ]/ C5 N, V# e; K
  70.       GPIO_InitStructure.GPIO_PuPd  = GPIO_PuPd_UP;
    / t6 J2 s3 ]# z. T6 c" Z, [
  71.       GPIO_Init(LED_GPIO[i], &GPIO_InitStructure);, s3 X5 k  B: \: f5 f, q
  72.       
    " n' a; ~, |3 D# _- K8 l5 }
  73.       GPIO_WriteBit(LED_GPIO[i], LED_GPIO_Pin[i], (BitAction)LED_Off);
    ( u' \5 J! L; X6 I: C
  74.     }
    : B& w& Q1 T8 r7 d0 x) ]" f; {# s
  75.   }+ v7 ]2 O5 a9 ~# D
  76. }/ H  X2 h" j6 i8 @3 [$ Z8 u
  77. 2 L' ]0 S3 u' r; n3 i; j  a' o
  78. /**: d; |/ B1 C' m5 X7 e2 `4 o
  79.   * @brief  Set led status.
    9 }+ w  V- }/ w; q  b+ l
  80.   * @param  [in] pin:    That led.
    7 i$ p* }6 p9 D/ X- h% K1 }
  81.   * @param  [in] status: Led status.; h6 s8 ^! o6 X8 C" ~
  82.   * @return None.2 |8 u7 Y% V* L. |& v
  83.   */
    : c& R  g, L1 P9 x
  84. void LED_SetStatus(LED_Pin pin, LED_Status status)5 Q" O: |# t0 ?, B0 v% _
  85. {
    4 Q$ X+ k7 }, Y* E7 |) v
  86.   if(status != ledStatus[pin])
    9 [1 f6 i5 [' q! D  E
  87.   {1 b4 F; r) l' F# q& S# V
  88.     ledStatus[pin] = status;4 m+ \7 @3 h' ^8 _; D
  89.     5 v. T+ X" D7 g" n  _; G9 [
  90.     LED_Init();( t$ a0 U5 Z- E; w# X
  91.     # z% I) N) h% f- H$ u
  92.     GPIO_WriteBit(LED_GPIO[pin], LED_GPIO_Pin[pin], (BitAction)status);. v, K* }, `5 M1 k5 u
  93.   }
    ; ]$ n; x1 }% P' B( F
  94. }1 g- O/ [$ W2 d- k

  95. 6 U& z- x9 F+ p/ e( ~. ?- w" H, h+ F
  96. /**
    % x. j6 d2 n1 G" x
  97.   * @brief  Get led status.5 I" U  A5 C& A- L* I4 M
  98.   * @param  [in] pin: That led.1 K" L$ e, e( X0 o6 L
  99.   * @return Led status.
    ! M4 }$ |3 c% ^; h0 w& k
  100.   */
    4 \. [+ n( _" Q5 j
  101. LED_Status LED_GetStatus(LED_Pin pin)( ]9 l) t# }+ K2 o7 N- J
  102. {, T3 M* S% P3 @' y
  103.   return ledStatus[pin];2 a7 D" p2 P% Q
  104. }2 n8 [# O, X* Q- i5 Q( T& d
复制代码
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      main.c文件+ V$ n' D0 g2 c# l* K* L$ _9 i
  1. /**- J$ ?4 k: o/ S' {! v& F) H
  2.   ******************************************************************************) e8 @( |8 r, A2 C/ q; _9 N  I$ N
  3.   * @file    main.c
    0 P$ C" f& {- O1 }, g  A1 c
  4.   * @author  XinLi
    ! m2 r9 }# O0 K# T8 l4 F( m
  5.   * @version v1.0
    9 |5 O# R( g! g6 O
  6.   * @date    24-October-2017$ O8 v) C% N) X  W
  7.   * @brief   Main program body.5 u. Z1 B) Y* I1 Y5 @
  8.   ******************************************************************************9 B- ^3 [- m6 X7 u  Z
  9.   * @attention
    1 z8 r) }% z/ @# {: R
  10.   *. p0 p: k$ m: K2 t. w
  11.   * <h2><center>Copyright © 2017 XinLi</center></h2>+ d9 z2 {) j' s
  12.   *$ s; C* w4 x* {
  13.   * This program is free software: you can redistribute it and/or modify6 L2 o, `0 g! X/ A. m  s. e
  14.   * it under the terms of the GNU General Public License as published by
    - {& G: r  R+ [
  15.   * the Free Software Foundation, either version 3 of the License, or
    ( ]7 Z8 ~' z! H0 M+ y
  16.   * (at your option) any later version., k* |( C# ]8 n; z; _
  17.   *( m' Y- y3 D# V: I/ W" S+ w
  18.   * This program is distributed in the hope that it will be useful,/ A% N- v* w; {( W/ w
  19.   * but WITHOUT ANY WARRANTY; without even the implied warranty of  _4 e* {% {, ?
  20.   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the& w6 b# n. y5 j1 `/ K8 n* u) g
  21.   * GNU General Public License for more details.( P. c& t1 w  e
  22.   *! x* u8 ]9 X( r3 o
  23.   * You should have received a copy of the GNU General Public License
    " }  @) C& E4 z
  24.   * along with this program.  If not, see <http://www.gnu.org/licenses/>.
    7 |9 Z( r2 w  ]0 O: \; m1 h% w
  25.   *
    0 Q$ L) L0 M( g( C% @: f
  26.   ******************************************************************************
    " Q6 E; u& ^6 n& S2 {- F
  27.   */5 q% L) c, t  S4 u
  28. 8 J. j( y5 v4 p, K' }
  29. /* Header includes -----------------------------------------------------------*/! k# W6 q2 o. F: Q! M9 I6 K
  30. #include "main.h"+ J0 H( U( u5 U6 H0 Z
  31. #include "Delay.h"
    ' j8 u9 C; _! v( C3 E: g: t
  32. #include "LED.h"/ {2 @4 G0 w: N+ C  ~  D: Q( P0 a

  33. " p$ X/ U( x! g( N
  34. /* Macro definitions ---------------------------------------------------------*/
    ) ^7 o( |: T* O2 e% V
  35. /* Type definitions ----------------------------------------------------------*/
    8 d7 J& E+ t7 T+ a3 o) L
  36. /* Variable declarations -----------------------------------------------------*/2 {* U( Z2 X% _6 p
  37. /* Variable definitions ------------------------------------------------------*/4 M5 i7 h/ ^) v
  38. /* Function declarations -----------------------------------------------------*/* N3 @. f" Y2 v9 {, b3 e8 b2 m
  39. /* Function definitions ------------------------------------------------------*/
    8 R! D4 F, g7 Y; O# o

  40. 6 d6 x* I1 O: p
  41. /**% d1 T0 a7 b! z" y  R. I
  42.   * @brief  Main program.: z) K, }4 ]( d! E0 i
  43.   * @param  None.) C0 D& b5 D3 d/ u) e. ?9 C
  44.   * @return None.
    ! ~# T8 L$ R1 f
  45.   */
    , @6 m# q+ b7 G* D/ ?4 ?# F* b
  46. int main(void)! O% |* n5 m: F  J% ^
  47. {
    # g4 j# O9 O4 a5 g
  48.   for(;;)2 n' }& J* w8 V, w4 N
  49.   {. b% I3 Y8 b* l: J. T; Q
  50.     Delay_ms(500);/ N9 ~+ Y5 g1 F7 `
  51.     LED_SetStatus(LED_Pin1, LED_On);/ W  _; l0 \1 ]5 B5 Z( W. L
  52.     Delay_ms(500);! y7 _5 c$ j3 ?% E) l
  53.     LED_SetStatus(LED_Pin2, LED_On);
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  54.     Delay_ms(500);
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  55.     LED_SetStatus(LED_Pin1, LED_Off);  k( e! `8 ]7 D
  56.     Delay_ms(500);
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  57.     LED_SetStatus(LED_Pin2, LED_Off);) Y8 O3 Y# [" o  |% N
  58.   }
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  59. }& U- S( [% O: ?7 p! a& t. K& B
复制代码
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3,注意
. p2 e9 A  E' s        修改接口需要注意,LED的驱动方式和增减LED的个数。对应修改LED_Status枚举和源文件的变量定义。
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收藏 评论1 发布时间:2018-3-9 20:26

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1个回答
XinLiYF 回答时间:2018-3-10 11:01:38
刚刚通过审核,自己顶一下
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