利用51单片机生成三角波的代码
时间: 2023-11-13 14:02:25 浏览: 130
以下是一份简单的基于51单片机的三角波生成代码:
```c
#include <reg51.h>
// 定义三角波数组
unsigned char triangle_wave[] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 99, 98, 97, 96, 95, 94, 93, 92, 91, 90, 89, 88, 87, 86, 85, 84, 83, 82, 81, 80, 79, 78, 77, 76, 75, 74, 73, 72, 71, 70, 69, 68, 67, 66, 65, 64, 63, 62, 61, 60, 59, 58, 57, 56, 55, 54, 53, 52, 51, 50, 49, 48, 47, 46, 45, 44, 43, 42, 41, 40, 39, 38, 37, 36, 35, 34, 33, 32, 31, 30, 29, 28, 27, 26, 25, 24, 23, 22, 21, 20, 19, 18, 17, 16, 15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4, 3, 2, 1};
void main() {
unsigned char index = 0; // 三角波数组下标
while (1) {
// 设置P1.0为三角波输出
P1 = triangle_wave[index];
// 每次循环改变三角波数组下标,实现三角波的连续输出
index++;
if (index >= sizeof(triangle_wave)) {
index = 0;
}
}
}
```
在上面的代码中,我们使用了一个长度为256的三角波数组来存储三角波的波形数据,每次循环输出数组中的一个元素,实现了连续输出三角波的效果。你可以根据需要调整代码中的三角波数组,以生成不同频率和振幅的三角波。
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