clock.c

驱动程序

//###########################################################################
//
// FILE:	Clock.c
//
// TITLE:	DS12C887 Clock Initialization & Support Functions.
//
//###########################################################################
//
//  Ver | dd mmm yyyy | Who  | Description of changes
// =====|=============|======|===============================================
//  1.0 | 20 May 2005 | CY.L.| Release
//###########################################################################
#include "DSP28_Device.h"
#include "DSP28_Globalprototypes.h"

//===========================================================================
// followed routines to Clock 12C887
//===========================================================================
void Time_on(void)
/*函数功能：启动实时时钟，并设置数据格式为BCD码，24小时方式*/
{
	Uint16 *pRt_Acs_Addr,*pRt_Dcs_Addr;
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x0a;							//latch the address of register A
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=0x20;
//	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x0b;							//latch the address of register B 
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=0x82;
	delay_loop( );
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x0b;							//latch the address of register B 
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=0x02;							//start clock
 }

void SetClockDefault(void)
{
	Uint16 *pRt_Acs_Addr,*pRt_Dcs_Addr;
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x0b;					//latch the address of register B 
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=(*pRt_Dcs_Addr)| 0x80;	//write a data to register B
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x0e;					//latch the address of register A
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=0x20;			//set yearh
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x09;					//latch the address of year
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=0x02;			//set yearl;

	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x08;					//latch the address of year
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=0x10;			//set Month;
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x07;					//latch the address of year
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=0x13;				//set Day;
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x04;					//latch the address of year
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=0x15;				//set Hour;
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x02;					//latch the address of year
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=0x43;			//set Miunte;
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x00;					//latch the address of year
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=0x00;			//set Second;
	
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x0b;					//latch the address of register B 
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=(*pRt_Dcs_Addr) & 0x7f;	//write a data to register B


}

void SetClock(void)
{
	Uint16 *pRt_Acs_Addr,*pRt_Dcs_Addr;
			
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x0b;					//latch the address of register B 
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=(*pRt_Dcs_Addr)| 0x80;	//write a data to register B
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x0e;					//latch the address of register A
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=Clock.Yearh;			//set yearh
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x09;					//latch the address of year
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=Clock.Yearl;			//set yearl;

	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x08;					//latch the address of year
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=Clock.Month;			//set Month;
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x07;					//latch the address of year
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=Clock.Day;				//set Day;
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x04;					//latch the address of year
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=Clock.Hour;				//set Hour;
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x02;					//latch the address of year
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=Clock.Minute;			//set Miunte;
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x00;					//latch the address of year
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=Clock.Second;			//set Second;
	
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x0b;					//latch the address of register B 
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=(*pRt_Dcs_Addr) & 0x7f;	//write a data to register B

}


void ReadClock(void)
{
	Uint16 *pRt_Acs_Addr,*pRt_Dcs_Addr;
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x0e;					//latch the address of century

	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	Clock.Yearh=((*pRt_Dcs_Addr) & 0x0ff);	//read Yearh
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x09;					//latch the address of year
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	Clock.Yearl=((*pRt_Dcs_Addr) & 0x0ff);	//read Yearl;			//set Yearl;

	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x08;					//latch the address of year
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	Clock.Month=((*pRt_Dcs_Addr) & 0x0ff);	//set Month;
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x07;					//latch the address of year
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	Clock.Day=((*pRt_Dcs_Addr) & 0x0ff);	//set Day;
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x04;					//latch the address of year
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	Clock.Hour=((*pRt_Dcs_Addr) & 0x0ff);	//set Hour;
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x02;					//latch the address of year
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	Clock.Minute=((*pRt_Dcs_Addr) & 0x0ff);	//set Miunte;
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x00;					//latch the address of year
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	Clock.Second=((*pRt_Dcs_Addr) & 0x0ff);	//set Second;

}


void set_century(Uint16 _data)
/*函数功能：设置世纪*/
/*参    数：_data：世纪：0--99*/
{
	Uint16 *pRt_Acs_Addr,*pRt_Dcs_Addr;

	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x0b;					//latch the address of register B 
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=(*pRt_Dcs_Addr)| 0x80;	//write a data to register B

	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x0e;					//latch the address of register A
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=_data;					//write the _data to register century

	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x0b;					//latch the address of register B 
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=(*pRt_Dcs_Addr) & 0x7f;	//write a data to register B

}

void set_year(Uint16 _data)
/*函数功能：设置年*/
/*参    数：_data：年：0--99*/
{
	Uint16 *pRt_Acs_Addr,*pRt_Dcs_Addr;
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x0b;					//latch the address of register B 
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=(*pRt_Dcs_Addr)| 0x80;	//write a data to register B

	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x09;					//latch the address of year
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=_data;					//write the _data to year

	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x0b;					//latch the address of register B 
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=(*pRt_Dcs_Addr)& 0x7f;	//write a data to register B

}

void set_month(Uint16 _data)
/*函数功能：设置月*/
/*参    数：_data：月：1--12*/
{
	Uint16 *pRt_Acs_Addr,*pRt_Dcs_Addr;
	
	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x0e;					//latch the address of register B 
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=(*pRt_Dcs_Addr)| 0x80;	//write a data to register B

	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x08;					//latch the address of month
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=_data;					//write the _data to month

	pRt_Acs_Addr =(Uint16 *)ADD_RT_ACS;
	(*pRt_Acs_Addr)=0x0b;					//latch the address of register B 
	pRt_Dcs_Addr =(Uint16 *)ADD_RT_DCS;
	(*pRt_Dcs_Addr)=(*pRt_Dcs_Addr)& 0x7f;	//write a data to register B