user.h

MB1504锁相环芯片的51单片机驱动程序,可以根据需要修改合适的分频值来完成频率合成配置.

//#include"STC12C5412AD.H"

void delay(unsigned int count) using 0
{
	unsigned int bdata j;
	while(count--!=0)
	{
		for(j=0;j<72;j++);
	}
}

/*unsigned char key_scan(void)
{
 	unsigned char a=0,b=0;
re:	P1=0x0f;
	a=P1;
	if(a!=0x0f)
	goto n1;
	else 
	goto re;
n1: delay(10);
	P1=0x0f;
	a=P1;
	if(a!=0x0f)
	goto n2;
	else 
	goto re;
n2: P1=0x7f;
	a=P1;
	if(a==0x77)
	{
		b=0;
		goto up;
	}
	if(a==0x7b)
	{
		b=1;
		goto up;
	}
	if(a==0x7d)
	{
		b=2;
		goto up;
	}
	if(a==0x7e)
	{
		b=3;
		goto up;
	}

	P1=0xbf;
	a=P1;
	if(a==0xb7)
	{
		b=4;
		goto up;
	}
	if(a==0xbb)
	{
		b=5;
		goto up;
	}
	if(a==0xbd)
	{
		b=6;
		goto up;
	}
	if(a==0xbe)
	{
		b=7;
		goto up;
	}

	P1=0xdf;
	a=P1;
	if(a==0xd7)
	{
		b=8;
		goto up;
	}
	if(a==0xdb)
	{
		b=9;
		goto up;
	}
	if(a==0xdd)
	{
		b=10;
		goto up;
	}
	if(a==0xde)
	{
		b=11;
		goto up;
	}

	P1=0xef;
	a=P1;
	if(a==0xe7)
	{
		b=12;
		goto up;
	}
	if(a==0xeb)
	{
		b=13;
		goto up;
	}
	if(a==0xed)
	{
		b=14;
		goto up;
	}
	if(a==0xee)
	{
		b=15;
		goto up;
	}

	goto n2;
up:	do
 	{P1=0x0f;
	a=P1;}
	while(a==0x0f);
	return b;
}	*/