initial.c

12键 触摸按键的应用 C格式 应用在手机 触摸屏上。

//***********************Initialize RAM&special register********************
void IniSys()				
{
	for(_mp0=0x7f;_mp0>0xa7;_mp0--)
	{
		_iar0=0;
	}
	_pa=0x88;
	_pac=0;
	
	m_CountIni=c_CountIni;
	m_SaveDx=0xff;
	
	_intc0=0;
	_intc1=0;
	_tmrc=0;
	_rcoccr=0;

	_intc0=0x01;			//ENABLE THE MASTER INTERRUPT 
	_intc1=0x01;			//ENABLE THE external RC oscillation converter INTERRUPT
	_rcoccr=0x20;			//TIMER A CLOCK SOURCE:(SYSTEM CLOCK/4)
	_rcocr=0x02;			//Enable RC OSCILLATION CONVERTER MODE AND Timer A overflow
	_tmrbl=0;
	_tmrbh=0;
}
//**************************scan key initialize***************************************************************
void SbrScanKeyIni()			//INITIALIZE & SAVE THE TMR1B COUNT VALUE TO [50H~67H]
{	
	m_mode=0;
	m_cx=0;
	_ascr=0;
	m_Flag0=m_Flag0&0xfe;		//clear  F_ErcocIni 	_4f_0 
	_rcoccr=_rcoccr&0xef;		//clear rcoccr.4
	_tmrbl=0;
	_tmrbh=0;
	_tmral=(c_Tmra20ms%0x100);
	_tmrah=(c_Tmra20ms/0x100);
	_rcoccr=_rcoccr|0x10;		//set rcoccr.4
	
	while(!F_ErcocIni)		//WAIT FOR SCANNING RC1~RC12 OVER
	{
		;
	}
	
	m_Flag0=m_Flag0&0xfd;		//clear F_IsrTimer1  _4f_1
}
//**************************refresh data***************************
void SbrRefreshData()
{
	m_CountIni=c_CountIni;
	m_Flag0=0;
	m_del0=_intc0;
	_intc0=_intc0&0xfe;
	
	for(m_ex=0;m_ex<12;m_ex++)
	{
		if(g_RfRef[m_ex]>g_RfSs[m_ex])
		{
			m_buf2=g_RfRef[m_ex]-g_RfSs[m_ex];
			if(m_buf2>c_NsL)
			{
				m_Flag0=m_Flag0|0x20;   		//set F_NoRefresh _4f_5
				break;
			}
			
		}
		else
		{
			m_buf2=g_RfSs[m_ex]-g_RfRef[m_ex];
			if(m_buf2>c_NsH)
			{
				m_Flag0=m_Flag0|0x20;   		//set F_NoRefresh _4f_5
				break;
			}
		}
	
	}
	if(!F_NoRefresh)
	{
		for(m_ex=0;m_ex<12;m_ex++)
		{
			g_RfRef[m_ex]=g_RfSs[m_ex];			//refresh g_RfRef[12]
		}
	}
	
	_intc0=m_del0;
	
}