#include<reg51.h>
#include<absacc.h>
#define uchar unsigned char
#define uint unsigned int
sbit csda=P3^6;
sbit wr=P2^7;
uchar code sin[256]={
0x80,0x83,0x86,0x89,0x8c,0x90,0x93,0x96,0x99,0x9c,0x9f,0xa2,0xa5,0xa8,0xab,
0xae,0xb1,0xb3,0xb6,0xb9,0xbc,0xbf,0xc1,0xc4,0xc7,0xc9,0xcc,0xce,0xd1,0xd3,
0xd5,0xd8,0xda,0xdc,0xde,0xe0,0xe2,0xe4,0xe6,0xe8,0xea,0xeb,0xed,0xef,0xf0,
0xf1,0xf3,0xf4,0xf5,0xf6,0xf8,0xf9,0xfa,0xfa,0xfb,0xfc,0xfd,0xfd,0xfe,0xfe,
0xfe,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xfe,0xfe,0xfd,0xfd,0xfc,0xfb,
0xfa,0xfa,0xf9,0xf8,0xf6,0xf5,0xf4,0xf3,0xf1,0xf0,0xef,0xed,0xeb,0xea,0xe8,
0xe6,0xe4,0xe2,0xe0,0xde,0xdc,0xda,0xd8,0xd5,0xd3,0xd1,0xce,0xcc,0xc9,0xc7,
0xc4,0xc1,0xbf,0xbc,0xb9,0xb6,0xb3,0xb1,0xae,0xab,0xa8,0xa5,0xa2,0x9f,0x9c,
0x99,0x96,0x93,0x90,0x8c,0x89,0x86,0x83,0x80,0x7d,0x7a,0x77,0x74,0x70,0x6d,
0x6a,0x67,0x64,0x61,0x5e,0x5b,0x58,0x55,0x52,0x4f,0x4d,0x4a,0x47,0x44,0x41,
0x3f,0x3c,0x39,0x37,0x34,0x32,0x2f,0x2d,0x2b,0x28,0x26,0x24,0x22,0x20,0x1e,
0x1c,0x1a,0x18,0x16,0x15,0x13,0x11,0x10,0x0f,0x0d,0x0c,0x0b,0x0a,0x08,0x07,
0x06,0x06,0x05,0x04,0x03,0x03,0x02,0x02,0x02,0x01,0x01,0x01,0x01,0x01,0x01,
0x01,0x02,0x02,0x02,0x03,0x03,0x04,0x05,0x06,0x06,0x07,0x08,0x0a,0x0b,0x0c,
0x0d,0x0f,0x10,0x11,0x13,0x15,0x16,0x18,0x1a,0x1c,0x1e,0x20,0x22,0x24,0x26,
0x28,0x2b,0x2d,0x2f,0x32,0x34,0x37,0x39,0x3c,0x3f,0x41,0x44,0x47,0x4a,0x4d,
0x4f,0x52,0x55,0x58,0x5b,0x5e,0x61,0x64,0x67,0x6a,0x6d,0x70,0x74,0x77,0x7a,0x7d,
};
void delay(uint m);
void main()
{
csda=0;
while(1)
{
uint t;
wr=0;
for(t= 0; t< 256; t= t+ 1)
{
P0 = sin[t];
delay(10);
}
}
}
void delay(uint m)
{
uint i , j;
for(i = 0; i < m; i++)
for(j = 0; j < 120; j++);
}