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` #include<reg51.h> #include<absacc.h> #define DAC0832 XBYTE[0x7fff] #define uchar unsigned char uchar code Sinetab[256]= { 0x80,0x82,0x84,0x86,0x88,0x8a,0x8c,0x8e, 0x90,0x92,0x94,0x96,0x98,0x9a,0x9c,0x9e, 0xa0,0xa2,0xa4,0xa6,0xa8,0xaa,0xab,0xad, 0xaf,0xb1,0xb2,0xb4,0xb6,0xb7,0xb9,0xba, 0xbc,0xbd,0xbf,0xc0,0xc1,0xc3,0xc4,0xc5, 0xc6,0xc8,0xc9,0xca,0xcb,0xcc,0xcd,0xce, 0xce,0xcf,0xd0,0xd1,0xd1,0xd2,0xd2,0xd3, 0xd3,0xd3,0xd2,0xd2,0xd1,0xd1,0xd0,0xcf, 0xce,0xce,0xcd,0xcc,0xcb,0xca,0xc9,0xc8, 0xc6,0xc5,0xc4,0xc3,0xc1,0xc0,0xbf,0xbd, 0xbc,0xba,0xb9,0xb7,0xb6,0xb4,0xb2,0xb1, 0xaf,0xad,0xab,0xaa,0xa8,0xa6,0xa4,0xa2, 0xa0,0x9e,0x9c,0x9a,0x98,0x96,0x94,0x92, 0x90,0x8e,0x8c,0x8a,0x88,0x86,0x84,0x82, 0x80,0x7d,0x7b,0x79,0x77,0x75,0x73,0x71, 0x6f,0x6d,0x6b,0x69,0x67,0x65,0x63,0x61, 0x5f,0x5d,0x5b,0x59,0x57,0x55,0x54,0x52, 0x50,0x4e,0x4d,0x4b,0x49,0x48,0x46,0x45, 0x43,0x42,0x40,0x3f,0x3e,0x3c,0x3b,0x3a, 0x39,0x37,0x36,0x35,0x34,0x33,0x32,0x31, 0x31,0x30,0x2f,0x2e,0x2e,0x2d,0x2d,0x2c, 0x2c,0x2b,0x2b,0x2b,0x2b,0x2a,0x2a,0x2a, 0x2a,0x2a,0x2a,0x2a,0x2b,0x2b,0x2b,0x2b, 0x2c,0x2c,0x2d,0x2d,0x2e,0x2e,0x2f,0x30, 0x31,0x31,0x32,0x33,0x34,0x35,0x36,0x37, 0x39,0x3a,0x3b,0x3c,0x3e,0x3f,0x40,0x42, 0x43,0x45,0x46,0x48,0x49,0x4b,0x4d,0x4e, 0x50,0x52,0x54,0x55,0x57,0x59,0x5b,0x5d, 0x5f,0x61,0x63,0x65,0x67,0x69,0x6b,0x6d, 0x6f,0x71,0x73,0x75,0x77,0x79,0x7b,0x7d, }; void main() { unsigned char i; while(1) { for(i=0;i<255;i++) { DAC0832=Sinetab[i]; } } } ` |
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3个回答
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貌似多了个逗号: 0x6f,0x71,0x73,0x75,0x77,0x79,0x7b,0x7d,
}; 应该是: 0x6f,0x71,0x73,0x75,0x77,0x79,0x7b,0x7d }; |
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这是用MATLAB 整的那个256点的查找表 你试试好使不这个是还原与源信号的比较 基本没啥差别。。{:1:}
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