【资料】 STM32 红外解码电视遥控器程序共享

小书明-2042808 · 2014-03-09T07:32:01+00:00

/********************************************************************************** 0 S& G: W% D, t% ]8 B {* c6 }* j* stm32F103VET6 红外驱动【遥控器解码实验程序】 0 X6 A& E! F8 F6 T ?+ m8 L * - D. X7 H5 a* v2 f: ]. @* 遥控器：42位编码 - X0 Y8 H9 w% v9 ?7 a- v * 0 x3 R. z2 H+ D7 o+ k% b: A ***********************************************************************************/ ) f+ v5 ?) E7 a7 U/ V: h#include "stm32f10x.h" ; K1 t, d% U; w' k S" {#include "exti.h" & ?6 l9 E9 Q, z #include "beep.h" ; h' h, U3 Q3 N#include "SysTick.h" : U/ _1 \* ?; x9 t% F4 w$ M, ~" k : Z7 I0 J [( Z: x #define LED1_0 GPIOD->BRR = 0x00000100 //LED低电平 8 f/ w6 t. b3 y#define LED2_0 GPIOD->BRR = 0x00000200 1 q6 S: `0 a9 F; r #define LED3_0 GPIOD->BRR = 0x00000400 " {3 ? ^0 @8 I' h1 `6 B: y #define LED4_0 GPIOD->BRR = 0x00000800 9 c) _+ K) V0 v1 S: W* y" P5 b% p# b t! A #define LED1_1 GPIOD->BSRR = 0x00000100 //LED高电平 6 x( }# O: ~. p& Q#define LED2_1 GPIOD->BSRR = 0x00000200 ) W! ]$ K3 N6 |5 [#define LED3_1 GPIOD->BSRR = 0x00000400 5 X% \, Y: C. z+ N7 U#define LED4_1 GPIOD->BSRR = 0x00000800 5 d+ ]' U! j' q- E5 @: p # ^0 [6 [# u7 o) i7 q#define IR_Hongwai_0 GPIOE->BRR = 0x00000004 //红外数据低电平 6 }& d! z- z5 [ #define IR_Hongwai_1 GPIOE->BSRR = 0x00000004 //红外数据高电平 7 `! n: c) f1 o6 Y* m r% J) G #define IR_Hongwai_x GPIO_ReadInputDataBit(GPIOE, GPIO_Pin_2) //读取红外电平状态 ' S, J" ]( E) v1 k/ W: @) j: o( E& ^% T0 o- y0 G0 G7 q. m unsigned char TimeByte; $ q7 j+ R% B1 x unsigned int IR_Tireafg[4]; $ z$ ~2 c3 E; H( m2 T unsigned int IR_xidwrit[8] = {0, 0, 0, 0, 0, 0 ,0, 0}; ! z$ ?( {9 c; \8 ~9 \; X 5 q. D6 Y6 S6 p$ i7 [ /* $ M* R @0 M4 p5 H+ U* S) H7 a7 [. J * GPIO端口配置子函数 f6 g; ^: [2 T, T9 ]4 p: q$ e */ ' S3 M* w! ?5 A6 h void GPIO_InitStructReadtempCmd(void) # g$ M* f! V6 A5 f8 o& \! q5 i{ 3 P1 ?7 H! b* }& A3 i$ n" U& y7 x GPIO_InitTypeDef GPIO_InitStruct; 6 S" ~3 `5 H5 |% m- M GPIO_InitStruct.GPIO_Pin = GPIO_Pin_2; //配置GPIO管脚 2 G" {5 T1 `* K9 _GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IPU; //配置管脚为输入上拉 ; x* ^+ A# I, n- @' Z GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz; //配置管脚速率50MHZ ( Q2 h$ z; Y5 G# l0 M( I+ Z GPIO_Init(GPIOE, &GPIO_InitStruct); //初始化指定端口 * ^3 Z: G4 c$ B. u & g- h a6 F3 N# y GPIO_InitStruct.GPIO_Pin = GPIO_Pin_5; 7 P1 @. C0 C2 O" W1 S% T: a( {GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP; //配置管脚陪推挽式输出 2 s' N) Z+ h' P4 `# iGPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz; 1 f0 ?9 x$ W. ? GPIO_Init(GPIOB, &GPIO_InitStruct); + J0 p$ P( |: t: A& h 0 `: Z" }: d# h! v( fGPIO_InitStruct.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11; G/ ^2 k8 Y/ q, l( Y5 V7 ]GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP; K1 H% i- b0 v GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz; . h" L/ c* i; I! O$ qGPIO_Init(GPIOD, &GPIO_InitStruct); & K3 w3 O) K s/ H2 W! ~% W} 9 a9 e6 [2 e! `9 G 2 h9 L% i( |- z/* 4 `' x! x. M9 Q* L# R% l" E; C! X* 配置外设时钟子函数 " Q+ L4 M2 N9 ]% ?6 ~6 d7 o( M */ 9 P4 Y: V( q8 U# Z# S/ Z) S+ ^void RCC_APB2PeriphReadtempyCmd(void) . d8 @4 j4 f7 _: X, U0 Z% S{ & I0 X7 P; M, O RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE); //打开GPIOB外设时钟 " x2 f1 P) Z% U& L/ k; r8 r RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOE, ENABLE); //打开GPIOE外设时钟 : F* A- r( M5 P5 G3 xRCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD, ENABLE); //打开GPIOD外设时钟 9 [8 C% [. o* M3 i; x6 ] RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO , ENABLE); //打开AFIO复用功能外设时钟 + J1 @6 G. Y$ E" u, A+ FRCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2 , ENABLE); # [) d; \( M7 u5 L& [ } ) O9 s# D) @6 _ , v' p' ~: x% n" L/* ; \4 m, m* S, ~1 A0 c& V * 计算低脉宽持续时间Count1 * 10us ]5 R) [$ X3 m' u' k/ \; e- {1 N7 i*/ |, a7 X# O" J unsigned int IR_HongwaiRead_LSB_Cmd() ! X, E* p4 l. K. ~6 j) _{ + D3 {9 h3 ]8 x0 N3 T d. T K, C unsigned int Count1 = 0; //定义时间变量 $ ]4 Y; x8 `* EIR_Hongwai_0; //红外数据低电平 ; T5 R# K; _" ~8 m9 Q! E; W5 udo //进入循环体 - ^9 g O7 ~: M# O5 N{ 5 Q; n% g4 f( `8 z% Z) s Count1++; //时间变量加1 0 R* O( i) L7 l MDelay_10us(1); //延时10us * X/ M' v4 j1 P% `) W} while(IR_Hongwai_x == 0); //判断条件如果读出来的红外数据为高电平跳出循环体 " g* C% w9 T! s: J: |7 E6 O+ Z + H R2 ?$ c& d8 k6 xreturn(Count1); //返回时间变量积数 / t6 }/ f& l4 D/ J/ D0 u} ' Y% l; m2 ^; r m* X, M* c: \- Y* R v& Q) ~5 y2 E L. i /* 0 q9 o; h: ~+ z * 计算高脉宽持续时间Count2 * 10us 4 t' N" i- {* q7 T/ Z */ 5 e* `0 y7 |; I G% funsigned int IR_HongwaiRead_MSB_Cmd() % a( \1 q( G8 s) S) I/ d{ " B8 m2 @" [8 y3 w. {6 a& Xunsigned int Count2 = 0; //定义时间变量 & T3 |0 V; o8 }) [( T# D5 pIR_Hongwai_1; //红外数据高电平 8 _. |* C0 ?+ [$ }) [5 Z9 E- k2 ~) R/ Fdo //进入循环体 2 f* q, W% B! S: N; y{ . L, n8 ]6 L9 D' Q$ \: P$ K) X Count2++; //时间变量加1 1 }3 h9 N/ \0 k% X9 U; i+ TDelay_10us(1); //延时10us # v" E5 s4 l3 D9 } } while(IR_Hongwai_x == 1); //判断条件如果读出来的红外数据为低电平跳出循环体 1 L9 N8 k3 v/ |0 X return(Count2); ) C3 R" W( H: W: Y. ? p } * N' ` c& j* |3 p' D; j2 d; P* Y$ n& M 5 T: ~7 c" D5 h- T4 g$ A$ g0 [1 F /* * b( F% |/ Q0 j6 Y$ F8 w2 L) g% I * 函数主体 ' i% n; v& t2 l9 r2 L2 y: k; F */ 6 F7 A8 r2 B7 w int main(void) ; u: T5 _6 B8 z6 h) s6 {' o- I{ & W4 ^6 F1 E/ p6 V* s5 h( j9 f8 K SystemInit(); //初始化系统时钟进入72M主频 & a1 g1 O) @4 {9 \, _* a7 b: k- T5 bSYSTICK_InitStructReadTCmd(); //初始化SysTick配置器寄存器 " J6 L- u" M9 y6 k5 e RCC_APB2PeriphReadtempyCmd(); //初始化外设时钟配置寄存器 2 d6 Z \7 d4 ], i s GPIO_InitStructReadtempCmd(); //初始化GPIO端口配置寄存器 $ H0 I7 v. H/ h2 x, `EXTI_InitStructReadtempCmd(); //初始化EXTI外部线路寄存器 " n- r( D2 X2 y L NVIC_InitStructReadtempCmd(); //初始化NVIC中断配置寄存器 4 n& \3 b0 k0 j$ x3 y9 A2 Y' s% ?. \& D; y: y; r8 n n while(1) ) y: P0 W6 p7 m: L1 i{ ! ~- W' _$ y- d4 g" X 6 ^& w2 l1 H$ M+ M* J2 q2 l} 6 c9 q; g/ o3 {% m } - j( e- I$ P: l3 m& y! K0 ^& C0 w * i3 B X% U+ a6 ^: l1 y3 o" [/* ; r' _, |) j& `- m- h * EXTI外部中断线服务程序 : ^5 C6 m$ [* H! D6 W: z; _1 H*/ ( ^' N) G" A2 H2 l& s: c# O# x$ b. z2 T void EXTI2_IRQHandler(void) ) `7 [8 }& M- i( p, y4 w* K{ 1 G% c5 f- q- m( ?2 g( _ unsigned char i = 0; 0 v& u: w" y' f4 F unsigned char flag = 1; 7 n* D6 x7 }' P1 m# P! W// unsigned char flag1 = 1; ' Y' B7 J& P% s) i! C, B unsigned int Countline2 = 0; ; \' v: ], k& _" j: j- {0 e IR_Hongwai_1; * o! ^& q* j) s" y- aCountline2 = IR_HongwaiRead_LSB_Cmd(); //低电平引导码 9ms判断 1 u6 b, x8 c4 P: x7 `: R; k' f0 ^if((Countline2 < 850) || (Countline2 > 950)) //小于8694us 大于9272us 一直循环否则跳出 / q) p$ x p' {5 @/ S$ h& ?" `{ " \8 p5 J7 d' L7 O7 Nreturn; & C+ ~3 }* P) P. M) i } 2 t) [- P) T( _; e: @Countline2 = IR_HongwaiRead_MSB_Cmd(); //高电平引导码 4.5ms判断 & `$ `, l$ Y Z: w! j+ ? if((Countline2 < 400) || (Countline2 > 450)) //小于4195us 大于4712us 一直循环否则跳出 % Q0 t& m) H3 G+ c { % A4 t7 F! h; N" O return; . s8 J& T" z+ g} ; M* }8 }6 Z$ k TimeByte = 0; 3 ~1 [8 R* {' p) w' I& v1 x3 l for(i = 1; i < 14; i++) 6 @6 w) U2 L5 g4 G{ 0 o" o* r+ X8 i- ]: b) j [9 g; OTimeByte = TimeByte >> 1; 6 u+ `3 _! U) g+ O2 w; p% @- T; UCountline2 = IR_HongwaiRead_LSB_Cmd(); //低电平延时0.56 判断 , ~* y6 I1 E; Yif((Countline2 < 40) || (Countline2 > 85))//小于425us 大于851us 一直循环否则跳出 4 C8 K* _2 F, u; ~. l: k { 7 _; s, G, E+ m* C! R- ]6 d" p. k3 _ return; & R O, K* `# b1 v8 S) B} 4 ^2 L m! P% v) p * D4 Y! t- F7 h. Y, y) D. i8 {& `Countline2 = IR_HongwaiRead_MSB_Cmd(); //高电平延时0.56判断 : b0 e/ B% j B: Q$ w if((Countline2 < 40) || (Countline2 > 200))//小于425us 大于1793us 一直循环否则跳出 % h( V" m) l! g$ f { 6 }4 s1 r$ j% @7 D, A$ |) w1 Wreturn; / }/ O4 s. p9 g' Y$ [$ l} 1 @" }' y# T7 D# I3 W/ S7 Wif( Countline2 > 130) //高电平延时大于1300us写1否则写0 2 T0 G/ r- r' C. {6 z) R* {$ |2 z& ? { ; o% n, \7 X: xTimeByte |= 0x80; //写1 $ u& J. f/ K$ K; c# r. g! |} $ X" W9 k0 c% e% P) @. E } ) x3 |# l9 ?# _4 [6 Y' |IR_Tireafg[0] = TimeByte; ( [$ @; R/ d: w4 x4 yTimeByte = 0; * y( S. X' R! p n- G4 Y( v 6 ^( d1 y% a N* zfor(i = 14; i < 27; i++) 4 w/ N I% `9 v* G5 r3 t{ 8 _* [% y0 Y) A* ~0 k! `5 q TimeByte = TimeByte >> 1; 3 P+ |; k: D7 e0 o8 f: { Countline2 = IR_HongwaiRead_LSB_Cmd(); 3 E% g- U3 X5 J9 b if((Countline2 < 40) || (Countline2 > 85)) ; B& W3 @- ~0 B! N/ L5 j9 S: u{ 2 P9 T9 f W, L6 j" ]; T+ e5 vreturn; # ^8 ~5 ~( [2 [& W3 G$ e} 6 P* A# p; d' {7 T ( k/ [- \% t. `8 Q! ~& _ Countline2 = IR_HongwaiRead_MSB_Cmd(); $ k6 D q7 \2 e' U0 ~- j" Q if((Countline2 < 40) || (Countline2 > 200)) # ~( G/ | |& E5 n { - ^9 E( Z. ~) H8 r, Q4 d. [return; + u5 k6 A3 t7 z! }} 2 N" B( G" \7 g6 Rif( Countline2 > 130) P) t8 b. i. S( q8 v{ 0 x* x; l# X8 y6 b4 i6 @$ k7 A TimeByte |= 0x80; $ n$ d" E2 P" H. l+ c} ! E9 o4 w1 x# A, q$ U) V} . G8 F" }' y& L' m" p5 [0 EIR_Tireafg[1] = TimeByte; 1 X! U' _5 e- k0 r/ g3 b5 W TimeByte = 0; $ f0 s; P- Y- Y9 ?4 g/ ?6 z/ p' _1 S% n/ O2 h7 M" ~# i8 t1 x. g for(i = 27; i < 35; i++) ! w4 I) f1 n8 p, z2 S+ j { , T. m( {( z9 O; Y* X, U8 ? TimeByte = TimeByte >> 1; % a' Z/ J$ s3 e) D4 P Countline2 = IR_HongwaiRead_LSB_Cmd(); , c- ~( W% t3 \9 v" ^ if((Countline2 < 40) || (Countline2 > 85)) ! S( q! g- O9 |! I { % n6 W6 H, l$ o e8 P: w0 z return; : z) b2 {2 ]3 i4 }+ T} % U+ ~. G) s+ X3 e% I . l- L* |! t, ~Countline2 = IR_HongwaiRead_MSB_Cmd(); $ I' |: d3 [( \6 b* q5 p# U" J if((Countline2 < 40) && (Countline2 > 200)) / M3 I1 K( m. ~; v* @) Y/ q { ( V8 r8 l- R# L* G) Y3 zreturn; ' q$ U3 P9 C. F& N- l4 B* e0 h$ u } * _7 ^7 T8 u! K: G- s if( Countline2 > 130) w% _' n8 c, W+ I9 X1 I7 h. D { # j d$ H. q' M g1 e( l" q TimeByte |= 0x80; / c$ U( T3 x6 u5 S} $ K7 \$ `. v3 R' D) |0 S* I } ( j4 d1 s8 Z; FIR_Tireafg[2] = TimeByte; 1 d* B6 a9 L5 @7 r+ i" aTimeByte = 0; 0 }- I) M- \: R$ P 0 _$ E# F! Q0 L7 ]" ]for(i = 35; i < 43; i++) + [2 S; q3 ~. S, U9 A% R# L+ l2 b: W{ & Q7 h) w7 {+ `2 N, D) X' V: P9 S TimeByte = TimeByte >> 1; 5 s/ F# _% |2 I1 l5 i7 H) U& ]/ ^ Countline2 = IR_HongwaiRead_LSB_Cmd(); - h" J5 j* u! W. nwhile((Countline2 < 40) || (Countline2 > 85)) ' i* j6 @' j9 ?' j+ x. W { 8 L3 H" Q+ I; C; sreturn; 4 g; C( B( Z5 o} 6 y9 X- R* X7 s7 y# f7 |8 a ' X8 b( ~$ C, G% |& ^6 s2 WCountline2 = IR_HongwaiRead_MSB_Cmd(); % x! _3 ]/ H# z7 F. X. O6 `- }6 D* N3 h xwhile((Countline2 < 40) || (Countline2 > 200)) & F$ r* C& M1 F, x6 c/ Z* @, Z{ 4 f: X' n5 s7 V- ?' p, V# s8 c/ Ireturn; * i7 |; ^. Q- t+ e } * _1 a4 }; s: L, ]3 l/ A' T/ S1 Eif( Countline2 > 130) $ H& F) F, ?6 C& \ { - L F) j$ m5 m( KTimeByte |= 0x80; 8 |; N$ y4 {- ?/ d2 @! V8 r } : G/ x1 w/ W, f" [' W4 m2 m} 7 {% L8 e0 l* g IR_Tireafg[3] = TimeByte; ! L' M! |3 Q$ f4 G; A8 B7 l3 ^! `9 h) B' X( R //************************判断用户正码和反码***************************************// * V6 @5 S' B' zdo & Z7 Q5 T( b2 U0 B: p { - t5 y3 O% q! t; U- t9 L if(IR_Tireafg[0] == 0x08 & IR_Tireafg[1] == 0xF7 ) R% O" u* Y; d { # c. O" ~4 {& c, oflag = 0; : F8 J" h, K9 v {; Z} 1 O* O- x; a6 n' V7 S/ x } while(flag == 1); r h: S# @( I4 ?5 ]7 ` //************************判断按键正码和反码***************************************// 8 ]% e0 p6 J! W0 l! u; U9 q /* do 9 p, u) G( A4 W, X3 W' v{ 4 K* d H" Z' }% V: H$ u if(IR_Tireafg[2] == ~IR_Tireafg[3]) ' G" u! {) x. S8 e, N! h3 S7 o { 8 _9 R7 f6 N% ~1 dflag1 = 0; $ }, n; t2 Y2 i} / Y1 e4 o" ^( E" x } while(flag1 == 0); */ V6 q3 @! I( _& k: ~8 J & w; t' k: R K9 n8 Y//************************按下键码对应LED点亮**************************************// ; X' n+ |# Z7 w9 G0 f7 F4 p& M switch (IR_Tireafg[2]) 8 O6 z: j$ Y, Z) l { 1 {7 C5 p Q e$ _% W, ~- E case 0x00: //按键 0 ) u, H8 g9 R5 g3 I' z. z# QLED1_1; LED2_0; LED3_0; LED4_0; ; ]% C* m/ r+ ~break; ) D5 \2 f) c" `. k. C . ^! ~3 R/ M0 I$ F case 0x01: //按键 1 ; U6 e1 G' B8 c3 U+ c W$ N VLED1_0; LED2_1; LED3_0; LED4_0; 2 r* J6 i7 Z8 k5 x- xbreak; # q1 n J0 p* {% W- X! T3 W 4 O, f. z5 J4 B1 ecase 0x02: //按键 2 # f) ^. h( t; bLED1_0; LED2_0; LED3_1; LED4_0; # ?4 k* Z5 Q, m, m6 q5 qbreak; 0 W- v: b1 `" O ) D9 p+ m) W1 x' [7 Y- kcase 0x03: //按键 3 : z0 `& x. I" j2 }' w LED1_0; LED2_0; LED3_0; LED4_1; - O' j9 E' ~/ N4 P* Z% dbreak; 4 z* x# O- o+ ?% G- m! W. V9 E3 w) a; f4 D3 g$ W1 Q/ c case 0x04: //按键 4 / F8 Y- a- q1 q; D LED1_0; LED2_0; LED3_1; LED4_0; 6 z0 f& p2 ?* T. v6 m5 lbreak; 4 G6 d( B! g7 j' `/ r% d x 7 y* P( f7 `* {3 m& |case 0x05: //按键 5 ; u f9 {& |4 C# z" VLED1_0; LED2_1; LED3_0; LED4_0; * O0 A. i2 e' V3 p6 x |break; & u% b, w1 n/ r7 q1 @9 J0 _" h: w9 Y+ V case 0x06: //按键 6 / N% _. J8 |) D9 b y6 ~- oLED1_1; LED2_0; LED3_0; LED4_0; 4 l7 t' R+ w" O# K" k break; ! i6 V3 T4 x; A0 y. Q1 {" n$ ~# m' ], t/ V" w$ [) _ case 0x07: //按键 7 ) x. x$ U: `9 r# n LED1_1; LED2_0; LED3_1; LED4_0; 0 h( T0 g7 s7 a; B( Z# cbreak; ) N; {' B) I7 h" H: F# V3 E3 X5 _5 M# D, ?' t5 q1 W5 r, ?: [ case 0x08: //按键 8 2 [- |: Y: P6 P& WLED1_0; LED2_0; LED3_0; LED4_0; ' V8 ~! ^( [$ A; _break; , D3 A0 \7 O% O, s# b, R 6 e* a$ c7 r, q) Dcase 0x09: //按键 9 2 h8 [/ h3 u2 L* p, V LED1_0; LED2_1; LED3_0; LED4_1; ! d- v# O$ a* |" ~ break; / d8 n& H' \. H" O" Q' z) t 4 M( `! \9 b. v9 C" f% I+ H! jcase 0x15: //静音键 2 b3 l8 _7 h: \: I2 wLED1_0; LED2_1; LED3_1; LED4_0; 2 U. Q6 U( O5 K5 Z$ b, Z break; " M& l0 O, X7 N8 ~4 E 7 y7 Y$ V9 D# @' Q9 Z0 w: hcase 0x1C: //开机键 / `- E2 p8 C8 ]3 H& \- A- DLED1_1; LED2_0; LED3_0; LED4_1; 9 J _ h" T# ?0 r1 Lbreak; 1 H9 w/ y+ u. }$ c 5 Z. I, S+ m: B+ I! v& P2 V3 x case 0x14: //OSD键 * G% v, q. {8 X$ S9 |; b$ RLED1_1; LED2_1; LED3_0; LED4_0; , X; x" n/ ~ t$ C& b, b break; ( p9 @) O* N8 S$ E' ?( U . f8 ~$ y5 X2 J5 j6 ~0 D8 ocase 0x0E: //RECALL键 6 O% J/ i4 f/ ~ i LED1_0; LED2_0; LED3_1; LED4_1; * R7 s. B: N2 r, v4 E/ M break; + Q5 B# D$ C3 t% P4 V . a$ N- q3 J7 m& ? case 0x19: //SLEEP键 - r+ J; b" y( X- z! u0 k" L k& BLED1_1; LED2_1; LED3_1; LED4_0; 0 x- q: F6 k ]" ~( `# v) | break; 8 g7 Q& `" b$ ]" {3 b2 S ' c# c! r" g$ x0 x case 0x0A: //A/C键 3 c/ {' O. S/ \ LED1_0; LED2_1; LED3_1; LED4_1; ( p0 }) ]" i/ g' b# Y% Gbreak; ; \' f! V5 g4 q+ b 0 T" r7 ~6 N* b, k$ F% G% v$ O+ g2 r& |case 0x0F: //TV/AV键 & e9 e/ s( \+ e' n e1 B LED1_1; LED2_1; LED3_1; LED4_1; 6 D5 T9 i V, `4 `& J! sbreak; $ @" S L" A6 U4 X g1 [0 O B 7 }6 w/ `$ y! B u5 R case 0x13: //PP键 2 I$ A3 y k3 s: lLED1_1; LED2_0; LED3_1; LED4_0; 2 K: e, i- X; t; x break; 4 j, k3 L" s5 V& j3 d! R8 Y; Z 8 a( e6 {, h! M case 0x0C: //GAME键 4 g2 h2 c6 T: B* ^5 |# I LED1_0; LED2_1; LED3_1; LED4_1; 5 [: I( Z9 p2 ubreak; 0 R2 G! r) ~0 p& V; ]+ s8 P& Q6 A , D* P- G3 ]! K6 Kcase 0x1E: //V-键 ; l0 G$ T+ W8 _* L7 y. G. l, h* | LED1_1; LED2_1; LED3_1; LED4_0; 4 @" P& }6 t7 f% b# F- u3 Q break; $ p" m1 b6 D/ \$ r- S . c: l; S' h7 u) {( mcase 0x1F: //V+键 + k! p2 w8 o% A/ I; zLED1_0; LED2_0; LED3_1; LED4_0; % L+ K. ]1 H$ L8 ], |break; 6 x- F) X: l# f5 A* B) r9 }8 |: t , {8 y& `) w1 M$ pcase 0x1B: //P+键 4 c- P3 R$ f8 m' p H LED1_0; LED2_0; LED3_0; LED4_1; " J& T/ K+ ~! {3 R. d break; % P' ` h8 l Y% h& t3 R) ` ( T4 K+ S i* [) d. Z1 V5 c- d( ucase 0x1A: //P-键 9 w( \' z# v- X4 X7 t6 m LED1_1; LED2_0; LED3_0; LED4_0; % |+ T5 y- @) abreak; ' c E4 }. w: X j$ M 4 G: ?, S6 C# h: C2 ~2 D$ j' U( R case 0x10: //MENU键 / o" R, _! p& Y: Q8 j LED1_0; LED2_1; LED3_0; LED4_0; $ Z! L: C: x. @6 C6 }: |7 v/ B& b9 obreak; $ V% W, P3 M) g$ P) R 0 W6 t9 K6 C( x$ q default : break; " d) S# C" x. I3 @! [! l 4 V* I* F0 p4 h} + P5 {* v5 K3 X& m q. j5 F// Beep_lookCmd(); //蜂鸣器按键音 * Q {1 a' F7 E9 V/ p0 e3 W2 LEXTI_ClearITPendingBit(EXTI_Line2); //清除EXTI2外部线路挂起位 , Y, B/ W" f" ]3 ^: {1 T- p" n: g4 r ?4 _- q4 o } 6 ?; k5 T A0 L4 k0 b; g# \ : S( `/ a) W1 I) D4 H/ w /*******************************************END****************************************/

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小书明-2042808 发布时间：2014-3-9 15:32

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/**********************************************************************************
*      stm32F103VET6 红外驱动【遥控器解码实验程序】
*
* 遥控器：42位编码
*
***********************************************************************************/
#include "stm32f10x.h"
#include "exti.h"
#include "beep.h"
#include "SysTick.h"

#define LED1_0    GPIOD->BRR  = 0x00000100 //LED低电平
#define LED2_0    GPIOD->BRR  = 0x00000200
#define LED3_0    GPIOD->BRR  = 0x00000400
#define LED4_0    GPIOD->BRR  = 0x00000800

#define LED1_1    GPIOD->BSRR = 0x00000100    //LED高电平
#define LED2_1    GPIOD->BSRR = 0x00000200
#define LED3_1    GPIOD->BSRR = 0x00000400
#define LED4_1    GPIOD->BSRR = 0x00000800

#define IR_Hongwai_0       GPIOE->BRR  = 0x00000004 //红外数据低电平
#define IR_Hongwai_1       GPIOE->BSRR = 0x00000004 //红外数据高电平
#define IR_Hongwai_x GPIO_ReadInputDataBit(GPIOE, GPIO_Pin_2)  //读取红外电平状态

unsigned char TimeByte;
unsigned int IR_Tireafg[4];
unsigned int IR_xidwrit[8] = {0, 0, 0, 0, 0, 0 ,0, 0};

/*
* GPIO端口配置子函数
*/
void GPIO_InitStructReadtempCmd(void)
{
GPIO_InitTypeDef GPIO_InitStruct;
GPIO_InitStruct.GPIO_Pin = GPIO_Pin_2;  //配置GPIO管脚
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_IPU;  //配置管脚为输入上拉
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;  //配置管脚速率50MHZ
GPIO_Init(GPIOE, &GPIO_InitStruct);  //初始化指定端口

GPIO_InitStruct.GPIO_Pin = GPIO_Pin_5;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP;  //配置管脚陪推挽式输出
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &GPIO_InitStruct);

GPIO_InitStruct.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9 | GPIO_Pin_10 | GPIO_Pin_11;
GPIO_InitStruct.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_InitStruct.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOD, &GPIO_InitStruct);
}

/*
* 配置外设时钟子函数
*/
void RCC_APB2PeriphReadtempyCmd(void)
{
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);  //打开GPIOB外设时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOE, ENABLE);  //打开GPIOE外设时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOD, ENABLE);  //打开GPIOD外设时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO , ENABLE);  //打开AFIO复用功能外设时钟
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2 , ENABLE);
}

/*
* 计算低脉宽持续时间Count1 * 10us
*/
unsigned int IR_HongwaiRead_LSB_Cmd()
{
unsigned int Count1 = 0; //定义时间变量
IR_Hongwai_0; //红外数据低电平
do //进入循环体
{
Count1++; //时间变量加1
Delay_10us(1); //延时10us
}  while(IR_Hongwai_x == 0);  //判断条件如果读出来的红外数据为高电平跳出循环体

return(Count1); //返回时间变量积数
}

/*
* 计算高脉宽持续时间Count2 * 10us
*/
unsigned int IR_HongwaiRead_MSB_Cmd()
{
unsigned int Count2 = 0; //定义时间变量
IR_Hongwai_1; //红外数据高电平
do //进入循环体
{
Count2++; //时间变量加1
Delay_10us(1); //延时10us
}  while(IR_Hongwai_x == 1);  //判断条件如果读出来的红外数据为低电平跳出循环体
return(Count2);
}

/*
* 函数主体
*/
int main(void)
{
SystemInit(); //初始化系统时钟进入72M主频
SYSTICK_InitStructReadTCmd(); //初始化SysTick配置器寄存器
RCC_APB2PeriphReadtempyCmd(); //初始化外设时钟配置寄存器
GPIO_InitStructReadtempCmd(); //初始化GPIO端口配置寄存器
EXTI_InitStructReadtempCmd(); //初始化EXTI外部线路寄存器
NVIC_InitStructReadtempCmd(); //初始化NVIC中断配置寄存器

while(1)
{

}
}

/*
* EXTI外部中断线服务程序
*/
void EXTI2_IRQHandler(void)
{
unsigned char i = 0;
unsigned char flag = 1;
// unsigned char flag1 = 1;
unsigned int Countline2 = 0;
IR_Hongwai_1;
Countline2 = IR_HongwaiRead_LSB_Cmd();  //低电平引导码 9ms判断
if((Countline2 < 850) || (Countline2 > 950)) //小于8694us 大于9272us 一直循环否则跳出
{
return;
}
Countline2 = IR_HongwaiRead_MSB_Cmd();  //高电平引导码 4.5ms判断
if((Countline2 < 400) || (Countline2 > 450)) //小于4195us 大于4712us 一直循环否则跳出
{
return;
}
TimeByte = 0;
for(i = 1; i < 14; i++)
{
TimeByte = TimeByte >> 1;
Countline2 = IR_HongwaiRead_LSB_Cmd(); //低电平延时0.56 判断
if((Countline2 < 40) || (Countline2 > 85))//小于425us 大于851us 一直循环否则跳出
{
return;
}

Countline2 = IR_HongwaiRead_MSB_Cmd(); //高电平延时0.56判断
if((Countline2 < 40) || (Countline2 > 200))//小于425us 大于1793us 一直循环否则跳出
{
return;
}
if( Countline2 > 130)  //高电平延时大于1300us写1否则写0
{
TimeByte |= 0x80;  //写1
}
}
IR_Tireafg[0] = TimeByte;
TimeByte = 0;

for(i = 14; i < 27; i++)
{
TimeByte = TimeByte >> 1;
Countline2 = IR_HongwaiRead_LSB_Cmd();
if((Countline2 < 40) || (Countline2 > 85))
{
return;
}

Countline2 = IR_HongwaiRead_MSB_Cmd();
if((Countline2 < 40) || (Countline2 > 200))
{
return;
}
if( Countline2 > 130)
{
TimeByte |= 0x80;
}
}
IR_Tireafg[1] = TimeByte;
TimeByte = 0;

for(i = 27; i < 35; i++)
{
TimeByte = TimeByte >> 1;
Countline2 = IR_HongwaiRead_LSB_Cmd();
if((Countline2 < 40) || (Countline2 > 85))
{
return;
}

Countline2 = IR_HongwaiRead_MSB_Cmd();
if((Countline2 < 40) && (Countline2 > 200))
{
return;
}
if( Countline2 > 130)
{
TimeByte |= 0x80;
}
}
IR_Tireafg[2] = TimeByte;
TimeByte = 0;

for(i = 35; i < 43; i++)
{
TimeByte = TimeByte >> 1;
Countline2 = IR_HongwaiRead_LSB_Cmd();
while((Countline2 < 40) || (Countline2 > 85))
{
return;
}

Countline2 = IR_HongwaiRead_MSB_Cmd();
while((Countline2 < 40) || (Countline2 > 200))
{
return;
}
if( Countline2 > 130)
{
TimeByte |= 0x80;
}
}
IR_Tireafg[3] = TimeByte;

//************************判断用户正码和反码***************************************//
do
{
if(IR_Tireafg[0] == 0x08 & IR_Tireafg[1] == 0xF7 )
{
flag = 0;
}
} while(flag == 1);
//************************判断按键正码和反码***************************************//
/* do
{
if(IR_Tireafg[2] == ~IR_Tireafg[3])
{
flag1 = 0;
}
} while(flag1 == 0);       */

//************************按下键码对应LED点亮**************************************//
switch  (IR_Tireafg[2])
{
case       0x00: //按键 0
LED1_1; LED2_0; LED3_0; LED4_0;
break;

case       0x01: //按键 1
LED1_0; LED2_1; LED3_0; LED4_0;
break;

case       0x02: //按键 2
LED1_0; LED2_0; LED3_1; LED4_0;
break;

case       0x03: //按键 3
LED1_0; LED2_0; LED3_0; LED4_1;
break;

case       0x04: //按键 4
LED1_0; LED2_0; LED3_1; LED4_0;
break;

case       0x05: //按键 5
LED1_0; LED2_1; LED3_0; LED4_0;
break;

case       0x06: //按键 6
LED1_1; LED2_0; LED3_0; LED4_0;
break;

case       0x07: //按键 7
LED1_1; LED2_0; LED3_1; LED4_0;
break;

case       0x08: //按键 8
LED1_0; LED2_0; LED3_0; LED4_0;
break;

case       0x09: //按键 9
LED1_0; LED2_1; LED3_0; LED4_1;
break;

case       0x15: //静音键
LED1_0; LED2_1; LED3_1; LED4_0;
break;

case       0x1C: //开机键
LED1_1; LED2_0; LED3_0; LED4_1;
break;

case       0x14: //OSD键
LED1_1; LED2_1; LED3_0; LED4_0;
break;

case       0x0E: //RECALL键
LED1_0; LED2_0; LED3_1; LED4_1;
break;

case       0x19: //SLEEP键
LED1_1; LED2_1; LED3_1; LED4_0;
break;

case       0x0A: //A/C键
LED1_0; LED2_1; LED3_1; LED4_1;
break;

case       0x0F: //TV/AV键
LED1_1; LED2_1; LED3_1; LED4_1;
break;

case       0x13: //PP键
LED1_1; LED2_0; LED3_1; LED4_0;
break;

case       0x0C: //GAME键
LED1_0; LED2_1; LED3_1; LED4_1;
break;

case       0x1E: //V-键
LED1_1; LED2_1; LED3_1; LED4_0;
break;

case       0x1F: //V+键
LED1_0; LED2_0; LED3_1; LED4_0;
break;

case       0x1B: //P+键
LED1_0; LED2_0; LED3_0; LED4_1;
break;

case       0x1A: //P-键
LED1_1; LED2_0; LED3_0; LED4_0;
break;

case       0x10: //MENU键
LED1_0; LED2_1; LED3_0; LED4_0;
break;

  default  :    break;

}
// Beep_lookCmd();    //蜂鸣器按键音
EXTI_ClearITPendingBit(EXTI_Line2); //清除EXTI2外部线路挂起位

}

/*******************************************END****************************************/