信号发生查表(函数信号发生器).doc

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2017-12-20 发布于河南
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信号发生查表(函数信号发生器).doc

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信号发生查表(函数信号发生器)

#include reg52.h #define uchar unsigned char #define uint unsigned int unsigned char code table[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71,0x00}; //共阴极~9对应进制数 //=============正弦波数据==================== uchar code sin_tab[256]= { 128, 131, 134, 137, 140, 143, 146, 149, 152, 156, 159, 162, 165, 168, 171, 174, 176, 179, 182, 185, 188, 191, 193, 196, 199, 201, 204, 206, 209, 211, 213, 216, 218, 220, 222, 224, 226, 228, 230, 232, 234, 236, 237, 239, 240, 242, 243, 245, 246, 247, 248, 249, 250, 251, 252, 252, 253, 254, 254, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 254, 254, 253, 252, 252, 251, 250, 249, 248, 247, 246, 245, 243, 242, 240, 239, 237, 236, 234, 232, 230, 228, 226, 224, 222, 220, 218, 216, 213, 211, 209, 206, 204, 201, 199, 196, 193, 191, 188, 185, 182, 179, 176, 174, 171, 168, 165, 162, 159, 156, 152, 149, 146, 143, 140, 137, 134, 131, 127, 124, 121, 118, 115, 112, 109, 106, 103, 99, 96, 93, 90, 87, 84, 81, 79, 76, 73, 70, 67, 64, 62, 59, 56, 54, 51, 49, 46, 44, 42, 39, 37, 35, 33, 31, 29, 27, 25, 23, 21, 19, 18, 16, 15, 13, 12, 10, 9, 8, 7, 6, 5, 4, 3, 3, 2, 1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 2, 3, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 15, 16, 18, 19, 21, 23, 25, 27, 29, 31, 33, 35, 37, 39, 42, 44, 46, 49, 51, 54, 56, 59, 62, 64, 67, 70, 73, 76, 79, 81, 84, 87, 90, 93, 96, 99, 103, 106, 109, 112, 115, 118, 121, 124, }; //三角波信号数据表 uchar code thr_tab[32]= { 0x00,0x0f,0x1f,0x2f,0x3f,0x4f,0x5f,0x6f,0x7f,0x8f,0x9f,0xaf,0xbf,0xcf,0xdf,0xef, 0xff,0xef,0xdf,0xcf,0xbf,0xaf,0x9f,0x8f,0x7f,0x6f,0x5f,0x4f,0x3f,0x2f,0x1f,0x0f }; //------------------------------------------------------------------------------------------------------- //锯齿波信号数据表 uchar code jc_tab[33]= { 0x00,0x08,0x0f,0x18,0x1f,0x28,0x2f,0x38,0x3f,0x48,0x4f,0x58,0x5f,0x68,0x6f,0x78, 0x7f,0x88,0x8f,0x98,0x9f,0xa8,0xaf,0xb8,0xbf,0xc8,0xcf,0xd8,0xdf,0xe8,0xef,0xf8,0xff }; //数码管位选控制口定义 sbit LED4=P2^7; sbit LED3=P2^6; sb