STC15W401 PWM调占空比程序.ZIP_STC PWM_STC调节PWM占空比程序_stc pwm_stc pwm可调

//内核特殊功能寄存器 // 复位值 描述 sfr ACC = 0xE0; //0000,0000 累加器Accumulator sfr B = 0xF0; //0000,0000 B寄存器 sfr PSW = 0xD0; //0000,0000 程序状态字 sbit CY = PSW^7; sbit AC = PSW^6; sbit F0 = PSW^5; sbit RS1 = PSW^4; sbit RS0 = PSW^3; sbit OV = PSW^2; sbit P = PSW^0; sfr SP = 0x81; //0000,0111 堆栈指针 sfr DPL = 0x82; //0000,0000 数据指针低字节 sfr DPH = 0x83; //0000,0000 数据指针高字节 //I/O 口特殊功能寄存器 sfr P0 = 0x80; //1111,1111 端口0 sbit P00 = P0^0; sbit P01 = P0^1; sbit P02 = P0^2; sbit P03 = P0^3; sbit P04 = P0^4; sbit P05 = P0^5; sbit P06 = P0^6; sbit P07 = P0^7; sfr P1 = 0x90; //1111,1111 端口1 sbit P10 = P1^0; sbit P11 = P1^1; sbit P12 = P1^2; sbit P13 = P1^3; sbit P14 = P1^4; sbit P15 = P1^5; sbit P16 = P1^6; sbit P17 = P1^7; sfr P2 = 0xA0; //1111,1111 端口2 sbit P20 = P2^0; sbit P21 = P2^1; sbit P22 = P2^2; sbit P23 = P2^3; sbit P24 = P2^4; sbit P25 = P2^5; sbit P26 = P2^6; sbit P27 = P2^7; sfr P3 = 0xB0; //1111,1111 端口3 sbit P30 = P3^0; sbit P31 = P3^1; sbit P32 = P3^2; sbit P33 = P3^3; sbit P34 = P3^4; sbit P35 = P3^5; sbit P36 = P3^6; sbit P37 = P3^7; sfr P4 = 0xC0; //1111,1111 端口4 sbit P40 = P4^0; sbit P41 = P4^1; sbit P42 = P4^2; sbit P43 = P4^3; sbit P44 = P4^4; sbit P45 = P4^5; sbit P46 = P4^6; sbit P47 = P4^7; sfr P5 = 0xC8; //xxxx,1111 端口5 sbit P50 = P5^0; sbit P51 = P5^1; sbit P52 = P5^2; sbit P53 = P5^3; sbit P54 = P5^4; sbit P55 = P5^5; sbit P56 = P5^6; sbit P57 = P5^7; sfr P6 = 0xE8; //0000,0000 端口6 sbit P60 = P6^0; sbit P61 = P6^1; sbit P62 = P6^2; sbit P63 = P6^3; sbit P64 = P6^4; sbit P65 = P6^5; sbit P66 = P6^6; sbit P67 = P6^7; sfr P7 = 0xF8; //0000,0000 端口7 sbit P70 = P7^0; sbit P71 = P7^1; sbit P72 = P7^2; sbit P73 = P7^3; sbit P74 = P7^4; sbit P75 = P7^5; sbit P76 = P7^6; sbit P77 = P7^7; sfr P0M0 = 0x94; //0000,0000 端口0模式寄存器0 sfr P0M1 = 0x93; //0000,0000 端口0模式寄存器1 sfr P1M0 = 0x92; //0000,0000 端口1模式寄存器0 sfr P1M1 = 0x91; //0000,0000 端口1模式寄存器1 sfr P2M0 = 0x96; //0000,0000 端口2模式寄存器0 sfr P2M1 = 0x95; //0000,0000 端口2模式寄存器1 sfr P3M0 = 0xB2; //0000,0000 端口3模式寄存器0 sfr P3M1 = 0xB1; //0000,0000 端口3模式寄存器1 sfr P4M0 = 0xB4; //0000,0000 端口4模式寄存器0 sfr P4M1 = 0xB3; //0000,0000 端口4模式寄存器1 sfr P5M0 = 0xCA; //0000,0000 端口5模式寄存器0 sfr P5M1 = 0xC9; //0000,0000 端口5模式寄存器1 sfr P6M0 = 0xCC; //0000,0000 端口6模式寄存器0 sfr P6M1 = 0xCB; //0000,0000 端口6模式寄存器1 sfr P7M0 = 0xE2; //0000,0000 端口7模式寄存器0 sfr P7M1 = 0xE1; //0000,0000 端口7模式寄存器1 //系统管理特殊功能寄存器 sfr PCON = 0x87; //0001,0000 电源控制寄存器 sfr AUXR = 0x8E; //0000,0000 辅助寄存器 sfr AUXR1 = 0xA2; //0000,0000 辅助寄存器1 sfr P_SW1 = 0xA2; //0000,0000 外设端口切换寄存器1 sfr CLK_DIV = 0x97; //0000,0000 时钟分频控制寄存器 sfr BUS_SPEED = 0xA1; //xx10,x011 总线速度控制寄存器 sfr P1ASF = 0x9D; //0000,0000 端口1模拟功能配置寄存器 sfr P_SW2 = 0xBA; //0xxx,x000 外设端口切换寄存器 //中断特殊功能寄存器 sfr IE = 0xA8; //0000,0000 中断控制寄存器 sbit EA = IE^7; sbit ELVD = IE^6; sbit EADC = IE^5; sbit ES = IE^4; sbit ET1 = IE^3; sbit EX1 = IE^2; sbit ET0 = IE^1; sbit EX0 = IE^0; sfr IP = 0xB8; //0000,0000 中断优先级寄存器 sbit PPCA = IP^7; sbit PLVD = IP^6; sbit PADC = IP^5; sbit PS = IP^4; sbit PT1 = IP^3; sbit PX1 = IP^2; sbit PT0 = IP^1; sbit PX0 = IP^0; sfr IE2 = 0xAF; //0000,0000 中断控制寄存器2 sfr IP2 = 0xB5; //xxxx,xx00 中断优先级寄存器2 sfr INT_CLKO = 0x8F; //0000,0000 外部中断与时钟输出控制寄存器 //定时器特殊功能寄存器 sfr TCON = 0x88; //0000,0000 T0/T1控制寄存器 sbit TF1 = TCON^7; sbit TR1 = TCON^6; sbit TF0 = TCON^5; sbit TR0 = TCON^4; sbit IE1 = TCON^3; sbit IT1 = TCON^2; sbit IE0 = TCON^1; sbit IT0 = TCON^0; sfr TMOD = 0x89; //0000,0000 T0/T1模式寄存器 sfr TL0 = 0x8A; //0000,0000 T0低字节 sfr TL1 = 0x8B; //0000,0000 T1低字节 sfr TH0 = 0x8C; //0000,0000 T0高字节 sfr TH1 = 0x8D; //0000,0000 T1高字节 sfr T4T3M = 0xD1; //0000,0000 T3/T4模式寄存器 sfr T3T4M = 0xD1; //0000,0000 T3/T4模式寄存器 sfr T4H = 0xD2; //0000,0000 T4高字节 sfr T4L = 0xD3; //0000,0000 T4低字节 sfr T3H = 0xD4; //0000,0000 T3高字节 sfr T3L = 0xD5; //0000,0000 T3低字节 sfr T2H = 0xD6; //0000,0000 T2高字节 sfr T2L = 0xD7; //0000,0000 T2低字节 sfr WKTCL = 0xAA; //0000,0000 掉电唤醒定时器低字节 sfr WKTCH = 0xAB; //0000,0000 掉电唤醒定时器高字节 sfr WDT_CONTR = 0xC1; //0000,0000 看门狗控制寄存器 //串行口特殊功能寄存器 sfr SCON = 0x98; //0000,0000 串口1控制寄存器 sbit SM0 = SCON^7; sbit SM1 = SCON^6; sbit SM2 = SCON^5; sbit REN = SCON^4; sbit TB8 = SCON^3; sbit RB8 = SCON^2; sbit TI = SCON^1; sbit RI = SCON^0; sfr SBUF = 0x99; //xxxx,xxxx 串口1数据寄存器 sfr S2CON = 0x9A; //0000,0000 串口2控制寄存器 sfr S2BUF = 0x9B; //xxxx,xxxx 串口2数据寄存器 sfr S3CON = 0xAC; //0000,0000 串口3控制寄存器 sfr S3BUF = 0xAD; //xxxx,xxxx 串口3数据寄存器 sfr S4CON = 0x84; //0000,0000 串口4控制寄存器 sfr S4BUF = 0x85; //xxxx,xxxx 串口4数据寄存器 sfr SADDR = 0xA9; //0000,0000 从机地址寄存器 sfr SADEN = 0xB9; //0000,0000 从机地址屏蔽寄存器 //ADC 特殊功能寄存器 sfr ADC_CONTR = 0xBC; //0000,0000 A/D转换控制寄存器 sfr ADC_RES = 0xBD; //0000,0000 A/D转换结果高8位 sfr ADC_RESL = 0xBE; //0000,0000 A/D转换结果低2位 //SPI 特殊功能寄存器 sfr SPSTAT = 0xCD; //00xx,xxxx SPI状态寄存器 sfr SPCTL = 0xCE; //0000,0100 SPI控制寄存器 sfr SPDAT = 0xCF; //0000,0000 SPI数据寄存器 //IAP/ISP 特殊功能寄存器 sfr IAP_DATA = 0xC2; //0000,0000 EEPROM数据寄存器 sfr IAP_ADDRH = 0xC3; //0000,0000 EEPROM地址高字节 sfr IAP_ADDRL = 0xC4; //0000,0000 EEPROM地址第字节 sfr IAP_CMD = 0xC5; //xxxx,xx00 EEPROM命令寄存器 sfr IAP_TRIG = 0xC6; //0000,0000 EEPRPM命令触发寄存器 sfr IAP_CONTR = 0xC7; //0000,x000 EEPROM控制寄存器 //PCA/PWM 特殊功能寄存器 sfr CCON = 0xD8; //00xx,xx00 PCA控制寄存器 sbit CF = CCON^7; sbit CR = CCON^6; sbit CCF2 = CCON^2; sbit CCF1 = CCON^1; sbit CCF0 = CCON^0; sfr CMOD = 0xD9; //0xxx,x000 PCA 工作模式寄存器 sfr CL = 0xE9; //0000,0000 PCA计数器低字节 sfr CH