51单片机按键控制的波形发生器，用TLV5615芯片，请给出代码

好的，以下是基于51单片机按键控制TLV5615芯片的波形发生器代码：

#include <reg51.h>
#include <intrins.h>
#define uchar unsigned char
#define uint unsigned int

sbit SCK=P3^5;
sbit SDI=P3^6;
sbit CS=P3^7;
sbit KEY1=P1^0;
sbit KEY2=P1^1;
sbit KEY3=P1^2;

uchar code SIN[128]={128,131,134,137,140,143,146,149,152,156,159,162,165,167,170,173,176,179,182,185,187,190,193,196,198,201,203,206,208,211,213,215,218,220,222,224,226,228,230,232,233,235,237,238,240,241,243,244,245,247,248,249,250,251,252,253,254,254,255,255,255,255,255,255,255,255,255,254,254,253,252,251,250,249,248,247,245,244,243,241,240,238,237,235,233,232,230,228,226,224,222,220,218,215,213,211,208,206,203,201,198,196,193,190,187,185,182,179,176,173,170,167,165,162,159,156,152,149,146,143,140,137,134,131,128,124,121,118,115,112,109,106,102,99,96,93,90,88,85,82,79,76,73,70,68,65,62,59,57,54,52,49,47,44,42,40,37,35,33,30,28,26,24,22,20,18,16,15,13,11,10,8,7,5,4,3,2,1,1,0,0,0,0,0,0,0,0,0,1,1,2,3,4,5,6,7,8,10,11,12,14,15,17,18,20,22,23,25,27,29,31,33,35,38,40,42,44,47,49,52,55,57,60,63,66,69,72,75,78,81,84,87,91,94,97,101,104,107,110,113,116,119,122,125};

void WriteTLV(uchar dat)
{
    uchar i;
    CS=0;
    _nop_();
    for(i=0;i<8;i++)
    {
        SCK=0;
        if(dat&0x80)
            SDI=1;
        else
            SDI=0;
        dat<<=1;
        SCK=1;
    }
    CS=1;
}

void init_TLV()
{
    WriteTLV(0x20);
    WriteTLV(0x80);
    WriteTLV(0x00);
}

void main()
{
    uchar i=0,j=0;
    init_TLV();
    while(1)
    {
        if(KEY1==0)
            i++;
        if(KEY2==0)
            i--;
        if(KEY3==0)
            j++;
        if(i>127)
            i=0;
        if(i<0)
            i=127;
        if(j>255)
            j=0;
        WriteTLV(0x30|((j>>4)&0x0f));
        WriteTLV(((j&0x0f)<<4)|(SIN[i]>>4));
        WriteTLV(SIN[i]<<4);
    }
}

注：这里使用了一个名为SIN的数组，存储了一个周期内的正弦波数据。根据你的具体需求，可以替换为其他类型的波形数据。