KEY_PWM.zip_pwm调频_stc15 remote_红外解码_红外遥控 PWM_遥控 PWM

#define MAIN_Fosc 22118400L //定义主时钟 #define SysTick 10000 // 次/秒, 系统滴答频率, 在4000~16000之间 #include "STC15Fxxxx.H" //======================================================================== #define Timer0_Reload (65536UL - ((MAIN_Fosc + SysTick/2) / SysTick)) //Timer 0 中断频率, 0.1ms #define Baudrate1 115200L #define UART1_BUF_LENGTH 32 //红外采样时间宏定义 不要随意修改 #define IR_SAMPLE_TIME (1000000UL/SysTick) //查询时间间隔, us, 红外接收要求在60us~250us之间 #if ((IR_SAMPLE_TIME <= 250) && (IR_SAMPLE_TIME >= 60)) #define D_IR_sample IR_SAMPLE_TIME //定义采样时间，在60us~250us之间 100 #endif #define D_IR_SYNC_MAX (15000/D_IR_sample) //SYNC max time 15 ms #define D_IR_SYNC_MIN (9700 /D_IR_sample) //SYNC min time 9.7 ms #define D_IR_SYNC_DIVIDE (12375/D_IR_sample) //decide data 0 or 1 12.375 ms #define D_IR_DATA_MAX (3000 /D_IR_sample) //data max time 3 ms #define D_IR_DATA_MIN (600 /D_IR_sample) //data min time 0.6 ms #define D_IR_DATA_DIVIDE (1687 /D_IR_sample) //decide data 0 or 1 1.687 ms #define D_IR_BIT_NUMBER 32 //bit number //======================================================================== void IO_Init(void); void PWM_Init(void); void SetTimer2Baudraye(u16 dat); void UART1_config(u8 brt); void PrintString1(u8 *puts); void PrintString2(u8 puts); void Send_Num(u8 NUM); void IR_RX_NEC(void); void TIME0_Init(void); u8 Get_IR_Key(u8 KEY); void IR_Control_PWM(void); //======================================================================== //红外接收程序变量声明 sbit P_IR_RX = P5^5; //定义红外接收输入IO口 sbit LED1=P1^5; u8 IR_SampleCnt; //采样计数 u8 IR_BitCnt; //编码位数 u8 IR_UserH; //用户码(地址)高字节 u8 IR_UserL; //用户码(地址)低字节 u8 IR_data; //数据原码 u8 IR_DataShit; //数据移位 bit P_IR_RX_temp; //Last sample bit B_IR_Sync; //已收到同步标志 bit B_IR_Press; //安键动作发生 u8 IR_code; //红外键码 u16 UserCode; //用户码 u8 IRCNT=0; bit B_1ms; //1ms //1ms标志 u8 cnt_1ms; //1ms基本计时 //串口变量 u8 TX1_Cnt; //发送计数 u8 RX1_Cnt; //接收计数 bit B_TX1_Busy; //发送忙 u8 idata RX1_Buffer[UART1_BUF_LENGTH]; //接收缓存 //PWM变量 volatile u16 PWM_Vale1=128; volatile u16 PWM_Vale2=128; volatile u8 Key_ON=0; //======================================================================== void main(void) { IO_Init(); UART1_config(2); PWM_Init(); TIME0_Init(); LED1=1; cnt_1ms = SysTick / 1000; EA = 1; //开总中断 while(1) { if(B_1ms==1) { B_1ms=0; IR_Control_PWM(); Send_Num(IRCNT); PrintString2(13); PrintString2(10); Send_Num(PWM_Vale1); PrintString2(13); PrintString2(10); } } } //======================================================================== void IO_Init(void) { P1M1 = 0; P1M0 = 0; //设置为准双向口 P3M1 = 0; P3M0 = 0; //设置为准双向口 P5M1 = 0; P5M0 = 0; //设置为准双向口 } //======================================================================== void PWM_Init(void) { //PCA0 AUXR1 &= ~0x00; AUXR1 |= 0x00; //切换IO口, 0x00: P1.2 P1.1 P1.0 P3.7, 0x10: P3.4 P3.5 P3.6 P3.7, 0x20: P2.4 P2.5 P2.6 P2.7 CCAPM0 = 0x42; //工作模式 PWM0 CCAPM1 = 0x42; //工作模式 PWM1 PCA_PWM0 = (PCA_PWM0 & ~0xc0) | 0x00; //PWM宽度, 0x00: 8bit, 0x40: 7bit, 0x80: 6bit PCA_PWM1 = (PCA_PWM1 & ~0xc0) | 0x00; //PWM宽度, 0x00: 8bit, 0x40: 7bit, 0x80: 6bit CMOD = (CMOD & ~0xe0) | 0; //选择时钟源, 0x00: 12T, 0x02: 2T, 0x04: Timer0溢出, 0x06: ECI, 0x08: 1T, 0x0A: 4T, 0x0C: 6T, 0x0E: 8T CR = 1; PWM0_OUT_0(); PWM1_OUT_0(); } //======================================================================== void TIME0_Init(void) { AUXR |=1<<7; //Timer0 set as 1T, 16 bits timer auto-reload, TH0 = (u8)(Timer0_Reload / 256); TL0 = (u8)(Timer0_Reload % 256); ET0 = 1; //Timer0 interrupt enable TR0 = 1; //Tiner0 run } //======================================================================== // 函数: void PrintString1(u8 *puts) // 描述: 串口1发送字符串函数。 // 参数: puts: 字符串指针. // 返回: none. //======================================================================== void PrintString1(u8 *puts) //发送一个字符串 { for (; *puts != 0; puts++) //遇到停止符0结束 { SBUF = *puts; B_TX1_Busy = 1; while(B_TX1_Busy); } } //======================================================================== // 函数: void PrintString1(u8 *puts) // 描述: 串口1发送字节函数。 // 参数: puts: 字节. // 返回: none. //======================================================================== void PrintString2(u8 puts) { SBUF=puts; B_TX1_Busy = 1; while(B_TX1_Busy); } void Send_Num(u16 NUM) { u8 B_Num,S_Num,G_Num; if(NUM>99) { B_Num=NUM/100+48; S_Num=NUM%100/10+48; G_Num=NUM%100%10+48; PrintString2(B_Num); PrintString2(S_Num); PrintString2(G_Num); } else if(NUM>9) { S_Num=NUM/10+48; G_Num=NUM%10+48; PrintString2(S_Num); PrintString2(G_Num); } else { G_Num=NUM+48; PrintString2(G_Num); } } //======================================================================== // 函数: SetTimer2Baudraye(u16 dat) // 描述: 设置Timer2做波特率发生器。 // 参数: dat: Timer2的重装值. // 返回: none. //======================================================================== void SetTimer2Baudraye(u16 dat) // 选择波特率, 2: 使用Timer2做波特率, 其它值: 使用Timer1做波特率. { AUXR &= ~(1<<4); //Timer stop AUXR &= ~(1<<3); //Timer2 set As Timer AUXR |= (1<<2); //Timer2 set as 1T mode TH2 = dat / 256; TL2 = dat % 256; IE2 &= ~(1<<2); //禁止中断 AUXR |= (1<<4); //Timer run enable } //======================================================================== // 函数: void UART1_config(u8 brt) // 描述: UART1初始化函数。 // 参数: brt: 选择波特率, 2: 使用Timer2做波特率, 其它值: 使用Timer1做波特率. // 返回: none. //======================================================================== void UART1_config(u8 brt) // 选择波特率, 2: 使用Timer2做波特率, 其它值: 使用Timer1做波特率. { /*********** 波特率使用定时器2 *****************/ if(brt == 2) { AUXR |= 0x01; //S1 BRT Use Timer2; SetTimer2Baudraye(65536UL - (MAIN_Fosc / 4) / Baudrate1); } /*********** 波特率使用定时器1 *****************/ else { TR1 = 0; AUXR &= ~0x01; //S1 BRT Use Timer1; AUXR |= (1<<6); //Timer1 set as 1T mode TMOD &= ~(1<<6); //Timer1 set As Timer TMOD &= ~0x30; //Timer1_16bitAutoReload; TH1 = (u8)((65536UL - (MAIN_Fosc / 4) / Baudrate1) / 256); TL1 = (u8)((65536UL - (MAIN_Fosc / 4) / Baudrate1) % 256); ET1 = 0; //禁止中断 INT_CLKO &= ~0x02; //不输出时钟 TR1 = 1; } /*************************************************/ SCON = (SCON & 0x3f) | 0x40; //UART1模式, 0x00: 同步移位输出, 0x40: 8位数据,可变波特率, 0x80: 9位数据,固定波特率, 0xc0: 9位数据,可变波特率 // PS = 1; //高优先级中断 ES = 1; //允许中断 REN = 1; //允许接收 P_SW1 &= 0x3f; P_SW1 |= 0x00; //UART1 switch to, 0x00: P3.0 P3.1, 0x40: P3.6 P3.7, 0x80: P1.6 P1.7 (必须使用内部时钟) // PCON2 |= (1<<4); //内部短路RXD与TXD, 做中继, ENABLE,DISABLE B_TX1_Busy = 0; TX1_Cnt = 0; RX1_Cnt = 0; } //======================================================================== //Synchro: low=9ms, high=4.5 / 2.25ms, low=0.5626ms //Bit0: high=0.5626ms, low=0.5626ms //Bit1: high=1.6879ms, low=0.5626ms //frame rate = 108ms ( pause 23 ms or 96 ms) //======================================================================== void IR_RX_NEC(void) { u8 SampleTime; IR_SampleCnt++; //Sample + 1 F0 = P_IR_RX_temp; //Save Last sample status P_IR_RX_temp = P_IR_RX; //Read current status IO状态 if(F0 && !P_IR_RX_temp) //Pre-sample is hig