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hanfenggl

急切需要您的帮助 [复制链接]

能产生三角波、锯齿波、正弦波、阶梯波、方波5种波形图 的信号发生器的  程序需要怎么编写啊！
   那位大虾 帮忙小弟啊    谢谢啦  
我的信箱是guoyong315@163.com

SuperStar515

目前水平还写不了,别处copy过来的哦,见凉啊^_^ 只有三种波的@_@ ＃include #define DA0832 XBYTE[0Xa000] #define uchar unsigned char #define S1 XBYTE[0X0000] #define S2 XBYTE[0X2000] #define S3 XBYTE[0X4000] uchar code tab[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f}; uchar code tosin[256]={0x80,0x83,0x86,0x89,0x8d,0x90,0x93,0x96,0x99,0x9c,0x9f,0xa2,0xa5,0xa8,0xab,0xae,0xb1,0xb4,0xb7,0xba,0xbc,0xbf,0xc2,0xc5 ,0xc7,0xca,0xcc,0xcf,0xd1,0xd4,0xd6,0xd8,0xda,0xdd,0xdf,0xe1,0xe3,0xe5,0xe7,0xe9,0xea,0xec,0xee,0xef,0xf1,0xf2,0xf4,0xf5 ,0xf6,0xf7,0xf8,0xf9,0xfa,0xfb,0xfc,0xfd,0xfd,0xfe,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xfd ,0xfd,0xfc,0xfb,0xfa,0xf9,0xf8,0xf7,0xf6,0xf5,0xf4,0xf2,0xf1,0xef,0xee,0xec,0xea,0xe9,0xe7,0xe5,0xe3,0xe1,0xde,0xdd,0xda ,0xd8,0xd6,0xd4,0xd1,0xcf,0xcc,0xca,0xc7,0xc5,0xc2,0xbf,0xbc,0xba,0xb7,0xb4,0xb1,0xae,0xab,0xa8,0xa5,0xa2,0x9f,0x9c,0x99 ,0x96,0x93,0x90,0x8d,0x89,0x86,0x83,0x80,0x80,0x7c,0x79,0x76,0x72,0x6f,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,0x09,0x08,0x07,0x06,0x05,0x04,0x03,0x02,0x02,0x01,0x00,0x00,0x00,0x00,0x00,0x00 ,0x00,0x00,0x00,0x00,0x00,0x00,0x01,0x02 ,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,0x72,0x76,0x79,0x7c,0x80 }; uchar fun=0,b=0,c=0,d=0,tl,th; void key1(void); void key2(void); void key3(void); void key4(void); void judge(void); void main(void) { TMOD=0X01; TR0=1; th=0xff; tl=0xd0; TH0=th; TL0=tl; ET0=1; EA=1; while(1) { judge(); } } void judge(void) { uchar line,row,de1,de2,keym; P1=0x0f; keym=P1; if(keym==0x0f)return; for(de1=0;de1<200;de1++) for(de2=0;de2<125;de2++){;} P1=0x0f; keym=P1; if(keym==0x0f)return; P1=0x0f; line=P1; P1=0xf0; row=P1; line=line+row;/*存放特征键值*/ if(line==0xde)key1(); if(line==0x7e)key2(); if(line==0xbd)key3(); if(line==0x7d)key4(); } void key1(void) //１键选择发波类型,1为正弦波,2为三角波,3为方波 { fun++; if(fun==4)fun=0x00; } void key2(void) //２键加大频率 { tl++; if(tl==0x1f)th++; } void key3(void) //３键减小频率 { tl--; if(tl==0x00)th--; } void key4(void) //４键显示频率 { double t; int f; TR0=0;//ＥＴ０的区别 t=(65535-th*256-tl)*0.4; f=(int)(1000/t); S3=tab[f%10]; f=f/10; S2=tab[f%10]; f=f/10; if(f==0)S1=0; else S1=tab[f]; TR0=1; } void time0_int(void) interrupt 1 //中断服务程序 { TR0=0; if(fun==1) { DA0832=tosin; //正弦波 b++; } else if(fun==2) //三角波 { if(c<128)DA0832=c; else DA0832=255-c; c++; } else if(fun==3) // 方波 { d++; if(d<=128)DA0832=0x00; else DA0832=0xff; } TH0=th; TL0=tl; TR0=1; }

njlianjian

三角波、锯齿波、正弦波、阶梯波、方波 使用单片机+DA（选型可根据具体的精度要求就可以了） 使用查表的形式 可分别根据电压的波形计算出相应的数据 里用查表的形式输出就可以了

fenghangl

我是楼主。。。 有没有汇编的程序？ C#的我看的不大懂 或者QC的 目前我只能看懂汇编的 抱歉啊

fenghangl

感谢滨头的大力支持啊！！

破茧佼龙

有专门的芯片啊。。。

fenghangl

芯片？我想要程序的 芯片对我来说没用啊 恳请大峡们在次出手

破茧佼龙

程序直接给你是不可能的，这程序比较庞大。。。全做完的就是一种专业技术了肯定没人给的，呵呵

wealding

查表法是最好的。 把一个周期的波形点数据保存成表，然后根据时间查表。 输出这个数据，外界da，实现波形。 这就是dds的原理。