51单片机数码管滚动显示

最新推荐文章于 2025-03-30 15:41:51 发布

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最新推荐文章于 2025-03-30 15:41:51 发布 · 6.5k 阅读

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CC 4.0 BY-SA版权

本文详细介绍了如何使用51单片机进行数码管动态显示的编程技巧，通过扫描方式实现数码管内容的滚动效果，涵盖了硬件连接、软件设计的关键步骤和注意事项。

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#include <reg51.h>

unsigned char code smgduan[18]={0x00, 0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
unsigned char code smgwei[8] = {0x00, 0x04,0x08, 0x0c, 0x10, 0x14, 0x18, 0x1c};
unsigned char data_code[8] = {0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
void disp(unsigned char FirBit, unsigned char Num);

void DelayUs2x(unsigned int n)//t = 2*n + 6 us
{
	while(--n);
}
void DelayMs(unsigned int n)//t = n ms
{
	while(n--)
	{
		DelayUs2x(245);
		DelayUs2x(245);
	}
}


void main()
{
	unsigned char i;
	unsigned char j;
	unsigned char n = 10000;
	unsigned int num[] = {2,0,8,1,6,0,6,0,9};
	
	while(1)
	{
		for(j = 0; j < 9; j++)
		{
			for(i = 0; i < 7; i++)
			{
				data_code[7 - i] = data_code[6 - i];
			}
			data_code[0] = smgduan[num[j] + 1];
			while(n--)
			{
				disp(1, 8);
			}
			n = 10000;
		}
		for(j = 0; j < 9; j++)
		{
		  for(i = 0; i < 7; i++)
			{
				data_code[7 - i] = data_code[6 - i];
			}