006【毕业设计】基于51单片机的波形发生器（四种波形）
四种波形的产生，包括锯齿波、三角波、方波、正弦波。通过LCD液晶显示当前波形以及波形的频率。可以通过按键切换波形，并可以通过按键进行设置当前波形的频率大小，也可以设置频率设置不步进值。资料从主页链接中进行下载。
链接：https://pan.baidu.com/s/1bMnNEv0cCAdTZ4xYCa3rtQ
提取码：hj9e
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#include /* 包含头文件 */
#include
#define uchar unsigned char /* 宏定义 */
#define uint unsigned int
sbit s1 = P3 ^ 5; /* 定义按键的接口 */
sbit s2 = P3 ^ 6;
sbit s3 = P3 ^ 7;
sbit s4 = P3 ^ 4;
sbit led0 = P3 ^ 0;
sbit led1 = P3 ^ 1;
sbit led2 = P3 ^ 2;
sbit led3 = P3 ^ 3;
sbit lcdrs = P2 ^ 7; /* 液晶控制位 */
sbit lcden = P2 ^ 6;
char num, boxing, u; /* 定义全局变量 */
int pinlv = 10, bujin = 1, bujin1 = 1;
uchar code table[] = "0123456789"; /* 定义显示的数组 */
uchar code table1[] = "Fout= Wave form:";
unsigned long int m;
int a, b, h, num1;
/* 自定义字符 */
uchar code zifu[] = {
0x0e, 0x11, 0x11, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x11, 0x11, 0x0e, 0x00, /* 正弦波 0 1 */
0x00, 0x07, 0x04, 0x04, 0x04, 0x04, 0x1c, 0x00,
0x00, 0x1c, 0x04, 0x04, 0x04, 0x04, 0x07, 0x00, /* 矩形波 2 3 */
0x00, 0x01, 0x02, 0x04, 0x08, 0x10, 0x00, 0x00,
0x00, 0x10, 0x08, 0x04, 0x02, 0x01, 0x00, 0x00, /*三角波 4 5 */
0x00, 0x01, 0x03, 0x05, 0x09, 0x11, 0x00, 0x00, /* 锯齿波 6 */
};
uchar code sin[64] = {
135, 145, 158, 167, 176, 188, 199, 209, 218, 226, 234, 240, 245, 249, 252, 254, 254, 253, 251, 247, 243, 237, 230, 222, 213, 204, 193, 182, 170, 158,
146, 133, 121, 108, 96, 84, 72, 61, 50, 41, 32, 24, 17, 11, 7, 3, 1, 0, 0, 2, 5, 9, 14, 20, 28, 36, 45, 55, 66, 78, 90,102, 114, 128
}; /* 正弦波取码 */
uchar code juxing[64] = {
255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255, 255,
255, 255, 255, 255, 255, 255, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
}; /* 矩形波取码 */
uchar code sanjiao[64] = {
0, 8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, 128, 136, 144, 152, 160, 168, 176, 184, 192, 200, 208, 216, 224, 232, 240, 248,
248, 240, 232, 224, 216, 208, 200, 192, 184, 176, 168, 160, 152, 144, 136, 128, 120, 112, 104, 96, 88, 80, 72, 64, 56, 48, 40, 32, 24, 16, 8, 0
}; /*三角波取码 */
uchar code juchi[64] = {
0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 45, 49, 53, 57, 61, 65, 69, 73, 77, 81, 85, 89, 93, 97, 101, 105, 109, 113, 117, 121, 125, 130, 134, 138, 142,
146, 150, 154, 158, 162, 166, 170, 174, 178, 182, 186, 190, 194, 198, 202, 206, 210, 215, 219, 223, 227, 231, 235, 239, 243, 247, 251, 255
}; /* 锯齿波取码 */
