信号发生器_(正弦波,方波,三角波)51单片机_C语言代码[1].pdf

/**************************************/ /* 信号发生器 （正弦波，方波，三角波） */ /*************************************/ #includereg52.h #include intrins.h #define uchar unsigned char #define uint unsigned int sbit cs=P2^0; //tlc5615 片选端口 sbit clk=P2^1; //tlc5615 时钟线 sbit din=P2^2; //tlc5615 传输端口 sbit key1=P1^0; sbit key2=P1^1; //按键的单片机接口 uchar keydat; uchar flag; // 波形发生终止信号的标志位 一旦 被置零立马停止发信号 uchar flagsqu; // 方波高低电平控制为 （运用定时器 1 中断控制） uchar m,num; uchar dat=0xff; uchar code tosin[141]={ //正弦波的编码 0x00,0x01,0x02,0x02,0x03,0x04,0x05,0x06,0x07,0x08, 0x09,0x0a,0x0b,0x0d,0x0e,0x10,0x11,0x13,0x15,0x16, 0x18,0x1a,0x1c,0x1e,0x20,0x22,0x25,0x27,0x29,0x2b, 0x2e,0x30,0x33,0x35,0x38,0x3a,0x3d,0x40,0x43,0x45, 0x48,0x4c,0x4e,0x51,0x55,0x57,0x5a,0x5d,0x60,0x63, 0x66,0x69,0x6c,0x6f,0x70,0x71,0x72,0x73,0x74,0x75, 0x76,0x77,0x78,0x79,0x7a,0x7b,0x7c,0x7d,0x7e,0x7e, 0x7f,0x80,0x7f,0x7e,0x7e,0x7d,0x7c,0x7b,0x7a,0x79, 0x78,0x77,0x76,0x75,0x74,0x73,0x72,0x6f,0x6c,0x69, 0x66,0x63,0x60,0x5d,0x5a,0x57,0x55,0x51,0x4e,0x4c, 0x48,0x45,0x43,0x40,0x3d,0x3a,0x38,0x35,0x33,0x30, 0x2e,0x2b,0x29,0x27,0x25,0x22,0x20,0x1e,0x1c,0x1a, 0x18,0x16,0x15,0x13,0x11,0x10,0x0e,0x0d,0x0b,0x0a, 0x09,0x08,0x07,0x06,0x05,0x04,0x03,0x02,0x02,0x01, 0x00}; void delay(uchar z) //延时函数 { uchar x,y; for(x=0;x110;x++) for(y=z;y0;y--); } void prepare() //tlc5615 的初始化 { cs=1; din=1; clk=0; cs=0; //cs 的上升沿和下降沿必须在 clk 为低时进 ? } /* 用中断来产生方波 void Squtranslator() { TR1=1; //启动定时器 1 控制高低电平 的持续时间 占空比 do{ do{