STM8S-红外解码接收(不吃鱼的懒猫原创)

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1、STM8S-红外解码接收(不吃鱼的懒猫原创) -不吃鱼的懒猫（2016-01-16） STM8S红外解码接收原理：利用外部中断沿(PD6)，定时器(TIM2)，解码红外信号。测试OK。后面加了IR按键处理部分。/*user code is 0xFF00*/const u8 IRTabFF00 = NKEY_00, NKEY_01, NKEY_02, NKEY_03, IR_00, NKEY_05, NKEY_06, NKEY_07, NKEY_08, NKEY_09, NKEY_0A, NKEY_0B, NKEY_0C, NKEY_0D, NKEY_0E, NKEY_0F, NKEY_10,

2、NKEY_11, NKEY_12, NKEY_13, NKEY_14, NKEY_15, NKEY_16, NKEY_17, NKEY_18, NKEY_19, NKEY_1A, NKEY_1B, NKEY_1C, NKEY_1D, NKEY_1E, NKEY_1F,NKEY_20, NKEY_21, NKEY_22, NKEY_23, NKEY_24, NKEY_25, NKEY_26, NKEY_27, IR_07, NKEY_29, NKEY_2A, NKEY_2B, NKEY_2C, NKEY_2D, NKEY_2E, NKEY_2F,IR_17, NKEY_31, NKEY_32,

3、NKEY_33, NKEY_34, NKEY_35, NKEY_36, NKEY_37, IR_14, NKEY_39, NKEY_3A, NKEY_3B, NKEY_3C, NKEY_3D, NKEY_3E, NKEY_3F,NKEY_40, NKEY_41, NKEY_42, NKEY_43, IR_05, NKEY_45, NKEY_46, NKEY_47, IR_02, NKEY_49, NKEY_4A, NKEY_4B, NKEY_4C, NKEY_4D, NKEY_4E, NKEY_4F,IR_13, NKEY_51, NKEY_52, NKEY_53, NKEY_54, NKEY

4、_55, NKEY_56, NKEY_57, IR_11, NKEY_59, NKEY_5A, NKEY_5B, NKEY_5C, NKEY_5D, NKEY_5E, NKEY_5F,NKEY_60, NKEY_61, NKEY_62, NKEY_63, NKEY_64, NKEY_65, NKEY_66, NKEY_67, NKEY_68, NKEY_69, NKEY_6A, NKEY_6B, NKEY_6C, NKEY_6D, NKEY_6E, NKEY_6F,NKEY_70, NKEY_71, NKEY_72, NKEY_73, NKEY_74, NKEY_75, NKEY_76, NK

5、EY_77, NKEY_78, NKEY_79, NKEY_7A, NKEY_7B, NKEY_7C, NKEY_7D, NKEY_7E, NKEY_7F,NKEY_80, NKEY_81, NKEY_82, NKEY_83, IR_01, NKEY_85, NKEY_86, NKEY_87, IR_03, NKEY_89, NKEY_8A, NKEY_8B, NKEY_8C, NKEY_8D, NKEY_8E, NKEY_8F,NKEY_90, NKEY_91, NKEY_92, NKEY_93, NKEY_94, NKEY_95, NKEY_96, NKEY_97, IR_10, NKEY

6、_99, NKEY_9A, NKEY_9B, NKEY_9C, NKEY_9D, NKEY_9E, NKEY_9F,NKEY_A0, NKEY_A1, NKEY_A2, NKEY_A3, NKEY_A4, NKEY_A5, NKEY_A6, NKEY_A7, IR_06, NKEY_A9, NKEY_AA, NKEY_AB, NKEY_AC, NKEY_AD, NKEY_AE, NKEY_AF,IR_16, NKEY_B1, NKEY_B2, NKEY_B3, NKEY_B4, NKEY_B5, NKEY_B6, NKEY_B7, NKEY_B8, NKEY_B9, NKEY_BA, NKEY

7、_BB, NKEY_BC, NKEY_BD, NKEY_BE, NKEY_BF,NKEY_C0, NKEY_C1, NKEY_C2, NKEY_C3, IR_04, NKEY_C5, NKEY_C6, NKEY_C7, NKEY_C8, NKEY_C9, NKEY_CA, NKEY_CB, NKEY_CC, NKEY_CD, NKEY_CE, NKEY_CF,IR_12, NKEY_D1, NKEY_D2, NKEY_D3, NKEY_D4, NKEY_D5, NKEY_D6, NKEY_D7, IR_15, NKEY_D9, NKEY_DA, NKEY_DB, NKEY_DC, NKEY_D

8、D, NKEY_DE, NKEY_DF,NKEY_E0, NKEY_E1, NKEY_E2, NKEY_E3, NKEY_E4, NKEY_E5, NKEY_E6, NKEY_E7, NKEY_E8, NKEY_E9, NKEY_EA, NKEY_EB, NKEY_EC, NKEY_ED, NKEY_EE, NKEY_EF,NKEY_F0, NKEY_F1, NKEY_F2, NKEY_F3, NKEY_F4, NKEY_F5, NKEY_F6, NKEY_F7, NKEY_F8, NKEY_F9, NKEY_FA, NKEY_FB, NKEY_FC, NKEY_FD, NKEY_FE, NK

9、EY_FF,; /NKEY_XX全部定义为0XFF,IR_XX定义为有效键值XXtypedef struct _IR_CODE u16 wData; /键值 u8 bState; /接收状态 u16 wUserCode; /用户码 u8 boverflow; /红外信号超时 IR_CODE;IR_CODE ir_code; / 112) /112*1ms = 112ms ir_code.bState = 0; INTERRUPT_HANDLER(EXTI_PORTD_IRQHandler, 6)/中断 /* In order to detect unexpected events during

10、 development, it is recommended to set a breakpoint on the following instruction. */Ir_Receive();#define timer1_pad125 /8us*125=1msvoid Ir_Receive(void) /IR接收u16 bCap1;u8 cap = 0;bCap1 = TIM2_GetCounter();TIM2_SetCounter(0);cap = bCap1/timer1_pad;if (cap = 0)ir_code.wData = 1;ir_code.bState+;ir_code

11、.boverflow = 0;else if (cap = 1)ir_code.wData = 1;ir_code.bState+;ir_code.boverflow = 0;else if (cap = 2)ir_code.wData = 1;ir_code.bState+;ir_code.wData |= 0x8000;ir_code.boverflow = 0;/*13ms-Sync*/else if(cap = 13)&(ir_code.boverflow 16)ir_code.bState = 0;else if(cap 8)&(ir_code.boverflow 110)&(ir_

12、code.boverflow 106)ir_code.bState = 0;else if(cap 20)&(ir_code.boverflow 106) /溢出情况下 （12M 48M）ir_code.bState = 0;elseir_code.boverflow = 0;if (ir_code.bState = 16)ir_code.wUserCode = ir_code.wData;if (ir_code.bState = 32)u8 Get_IrKey_Value(void) /取IR键值 u8 tkey =NO_KEY; if (ir_code.bState != 32) retu

13、rn tkey; if (u8*)&ir_code.wData)0 (u8*)&ir_code.wData)1) = 0xff) if (ir_code.wUserCode = 0x429A)/用户码为0X429A tkey = IRTabFF00(u8)ir_code.wData; else ir_code.bState = 0; return tkey;/*按键门槛值*/#define KEY_BASE_CNT 4#define KEY_LONG_CNT 75#define KEY_HOLD_CNT 15#define KEY_SHORT_CNT 7/*按键状态*/#define KEY_

14、SHORT_UP 0x0#define KEY_LONG 0x1#define KEY_HOLD 0x2#define KEY_LONG_UP 0x3#define NO_KEY 0xffvoid IrKey_Scan(void) /IR按键识别 static u8 last_key = NO_KEY; static u8 key_press_counter; static u8 key_press_flag = 0; u8 cur_key, key_status, back_last_key; cur_key = NO_KEY;IrKey_Value = NO_KEY; back_last_

15、key = last_key; cur_key = Get_IrKey_Value(); if (cur_key = last_key) /长时间按键 if (cur_key = NO_KEY) return; key_press_counter+; if (key_press_counter = KEY_LONG_CNT) /长按 /key_status = KEY_LONG; IrKey_Value = back_last_key; else if (key_press_counter = (KEY_LONG_CNT + KEY_HOLD_CNT) /连按 /key_status = KE

16、Y_HOLD; IrKey_Value = back_last_key; key_press_counter = KEY_LONG_CNT; else return; else /cur_key = NO_KEY, 抬键 last_key = cur_key; if (key_press_counter KEY_LONG_CNT) & (cur_key != NO_KEY) if (key_press_counter KEY_LONG_CNT) & (cur_key = NO_KEY) /短按抬起 key_press_counter = 0; /key_status = KEY_SHORT_UP; IrKey_Value = back_last_key; else key_press_counter = 0; return; 此为原创，转载请标明，谢谢; （2016-01-16）