key.c

来自「8051带32Mflash的源代码」· C语言 代码 · 共 61 行

#include"key_h.h"

uchar key_test(void)
{	if(key1==0)
		return(0xaa);
}

uchar key_scan(void)
{
	if(key1==0)
	{	delay10ms(500);
		if(key1==0);
		{	delay10ms(500);
			if(key1==0)
			{	while(key1==0);
				return 1;
			}
		}
	}
	if(key2==0)
	{	delay10ms(500);
		if(key2==0);
		{	delay10ms(500);
			if(key2==0)
			{	while(key2==0);
				return 2;
			}
		}
	}
	if(key3==0)
	{	delay10ms(500);
		if(key3==0);
		{	delay10ms(500);
			if(key3==0)
			{	while(key3==0);
				return 3;
			}
		}
	}
	if(key4==0)
	{	delay10ms(500);
		if(key4==0);
		{	delay10ms(500);
			if(key4==0)
			{	while(key4==0);
				return 4;
			}
		}
	}
	if(key5==0)
	{	delay10ms(500);
		if(key5==0);
		{	delay10ms(500);
			if(key5==0)
			{	while(key5==0);
				return 5;
			}
		}
	}
}