main.c

嵌入式系统入学者首选资料,RTC TEST

#include "option.h"
#include "def.h"
#include "44b.h"
#include "44blib.h"
#include "DataType.h"



U32	SERIAL_BAUD	= 57600;
TIME_STRUC SysTime;
char *WeekDay[7] = {"SUN","MON", "TUES", "WED", "THURS","FRI", "SAT"}; 

/*********************************************************/
static void delay(U32 cnt)
{
	while(cnt--);
}


/*********************************************************/
#define RTC_YEAR0		(0x03)		//年
#define RTC_MONTH0		(0x02)		//月
#define RTC_DAY0		(0x0e)		//日
#define RTC_DATE0		(0x06)		//星期SUN:1 MON:2 TUE:3 WED:4 THU:5 FRI:6 SAT:7
#define RTC_HOUR0		(0x08)		//小时
#define RTC_MIN0		(0x08)		//分
#define RTC_SEC0		(0x08)		//秒

#define RTC_YEAR1		(0x03)		//年
#define RTC_MONTH1		(0x03)		//月
#define RTC_DAY1		(0x0e)		//日
#define RTC_DATE1		(0x06)		//星期－SUN:1 MON:2 TUE:3 WED:4 THU:5 FRI:6 SAT:7
#define RTC_HOUR1		(0x08)		//小时
#define RTC_MIN1		(0x08)		//分
#define RTC_SEC1		(0x08)		//秒

#define	RTC_RW_EN()	rRTCCON = 1		//|= 1
#define	RTC_RW_DS()	rRTCCON &= 0xfe

void RtcSetDay(TIME_STRUC *time)
{
	RTC_RW_EN();				//RTC读写使能，选择BCD时钟、计数器，无复位，1/32768		
	rBCDYEAR = time->year;;		//年
    rBCDMON  = time->month;		//月
    rBCDDAY  = time->day;		//日	
	RTC_RW_DS();
}

void RtcSetWeek(TIME_STRUC *time)
{
	RTC_RW_EN();
	rBCDDATE = time->weekday;
	RTC_RW_DS();
}

void RtcSetTime(TIME_STRUC *time)
{
	RTC_RW_EN();				//RTC读写使能，选择BCD时钟、计数器，无复位，1/32768		
	rBCDHOUR = time->hour;		//小时
    rBCDMIN  = time->min;		//分
    rBCDSEC  = time->sec;		//秒
	RTC_RW_DS();
}


void RtcInit(TIME_STRUC *time)
{
    RTC_RW_EN();				//RTC读写使能，选择BCD时钟、计数器，无复位，1/32768
    rBCDYEAR = time->year;;		//年
    rBCDMON  = time->month;		//月
    rBCDDAY  = time->day;		//日
    rBCDDATE = time->weekday;	//星期
    rBCDHOUR = time->hour;		//小时
    rBCDMIN  = time->min;		//分
    rBCDSEC  = time->sec;		//秒
    
    rTICNT = 0x80+127;		//enable tick timer interrupt, set tick timer interrupt time = (127+1)/128 second	
    RTC_RW_DS();	
}

void RtcAlarm(TIME_STRUC *time)  
{
	rALMYEAR = time->year;		//年
	rALMMON  = time->month;		//月
	rALMDAY  = time->day;		//日
	rALMHOUR = time->hour;		//小时
	rALMMIN  = time->min;		//分
	rALMSEC  = time->sec; 		//秒

	rRTCALM = 0x7f;		//全局警报使能控制，年、月、日、星期、时分秒警报使能控制
}

void RtcGetTime(TIME_STRUC *time)
{
	U8 m;

	RTC_RW_EN();		//RTC读写使能
	time->year = 2000 + rBCDYEAR;
	time->weekday = rBCDDATE;

	m = rBCDMON;	
	time->month = m;//(m>>4)*10 + (m&0xf);	//BCD码转十进制

	m = rBCDDAY;	
	time->day = m;//(m>>4)*10 + (m&0xf);	//BCD码转十进制	

	m = rBCDHOUR;	
	time->hour = m;//(m>>4)*10 + (m&0xf);	//BCD码转十进制
	
	m = rBCDMIN;	
	time->min = m;//(m>>4)*10 + (m&0xf);	//BCD码转十进制

	m = rBCDSEC;			
	time->sec = m;//(m>>4)*10 + (m&0xf);	//BCD码转十进制
	
    RTC_RW_DS();		//RTC读写禁止(降低功率消耗)，选择BCD时钟、计数器，无复位，1/32768    

}

void InitSysTimer(U8 Freq)
{		
	rTCON   &= 0xf0ffffff;			//clear manual update bit, stop Timer 5 	
	rTCFG0  &= 0xff00ffff;			//定时器4/5的预分频为16
	rTCFG0  |= (16-1)<<16;
	rTCFG1  &= 0xff0fffff;			//定时器5的MUX为1/8
	rTCFG1  |= 2<<20;	
	rTCNTB5  = MCLK/(Freq*16*8);	//定时器5的重装值,在ENABLE之前设定	
	rTCON   |= 0x02000000;			//定时器5的MANUAL UPDATE BIT设为1
	rTCON   &= 0xf0ffffff;			//MANUAL UPDATE BIT清零
	rTCON   |= 0x05000000;			//定时器5 start, 设为INTERVAL模式
}
	


/*********************************************************/
int SysClock(int argc, char *argv[])
{
	printf("System is running @%dHz\n", MCLK);
	return 0;
}

int GetDate(int argc, char *argv[])
{
	int i, error = 0;
	char tmp[8];
	char *str;
	U32 year, month, day;
	
	RtcGetTime(&SysTime);
	 Uart_Printf("Current date is %d-%d-%d \n", SysTime.year, SysTime.month, SysTime.day);
	
	if(argc<2)
		return 0;	
		
	str = argv[1];	
	
	for(i=0; i<5; i++)	
		tmp[i] = str[i];
	if(tmp[4]!='-')
		error = 1;
	year = strtodec(str, 4);
	if(year<2000||error)
	{			
		puts("year error!\n");
		return 0;
	}		
				
	str += 5;
	i = 0;		
	if(str[++i]!='-')
		if(str[++i]!='-')
			error = 1;
	str[i] = 0;					
	month = strtobcd(str);
	if((month-1)>0x11||error)
	{				
		puts("month error!\n");
		return 0;
	}		
		
	str += i+1;		
	i = 0;
	if(str[++i]!=0)
		if(str[++i]!=0)
			error = 1;
	str[i] = 0;		
	day = strtobcd(str);
	if((day-1)>0x30||error)
	{		
		puts("day error!\n");
		return 0;
	}	
	
	SysTime.year  = year-2000;
	SysTime.month = month;
	SysTime.day   = day;		
	RtcSetDay(&SysTime);	
	
	Uart_Printf("Set date %d-%x-%x %s\n", year, month, day, WeekDay[SysTime.weekday]);
	
	return 1;
}

int SetWeek(int argc, char *argv[])
{
	U32 i;
	int error = 0;	
	
	if(argc<2)
		error = 1;	
	
	i = strtodec(argv[1], 1);
	if((i-1)>5)
		error = 1;
	
	if(!error)
	{
		SysTime.weekday = i;
		RtcSetWeek(&SysTime);
		Uart_Printf("Set to %s\n", WeekDay[i]);
	}
	else
	{
		puts("Please enter weekday\n");
		puts("0 : Sunday\n");
		puts("1 : Monday\n");
		puts("2 : Tuesday\n");
		puts("3 : Wednesday\n");
		puts("4 : Thursday\n");
		puts("5 : Friday\n");
		puts("6 : Satday\n");		
	}
	
	return 0;	
}

int GetTime(int argc, char *argv[])
{
	int i, error = 0;
	char *str;
	U32 hour, min, sec;
	
	RtcGetTime(&SysTime);
	Uart_Printf("Current time is %x:%x:%x\n", SysTime.hour, SysTime.min, SysTime.sec);
	
	if(argc>1)
	{
		str = argv[1];
		i = 0;
		if(str[++i]!=':')
			if(str[++i]!=':')
				error = 1;
		str[i] = 0;		
		hour = strtobcd(str);
		if(hour>0x23||error)
		{
			puts("hour error!\n");
			return error;
		}
		
		str	+= i+1;
		i = 0;		
		if(str[++i]!=':')
			if(str[++i]!=':')
				error = 1;
		str[i] = 0;		
		min = strtobcd(str);		
		if(min>0x59||error)
		{
			puts("minute error!\n");
			return error;
		}
		
		str	+= i+1;
		i = 0;		
		if(str[++i]!=0)
			if(str[++i]!=0)
				error = 1;
		str[i] = 0;		
		sec = strtobcd(str);		
		if(sec>0x59||error)
		{
			puts("second error!\n");
			return error;
		}
		
		SysTime.hour = hour;
		SysTime.min  = min;
		SysTime.sec = sec;		
		RtcSetTime(&SysTime);
		
		Uart_Printf("Set time %x:%x:%x\n", hour, min, sec);								
	}	
	
	return error;
}



void Main(void)
{
    U8 aa;		
int i;    
    rSYSCFG=CACHECFG;   // Using 8KB Cache//

    Port_Init();
    Beep(0);
    Led_Display(0x0);

    Uart_Init(0,57600);
    Delay(10);
    Uart_Select(0); //Select UART0

    Uart_Printf("\nS3C44B0X rtc test");
   
  	
	SysTime.year    = 5;
	SysTime.month   = 11;
	SysTime.day     = 22;
	SysTime.weekday = 3;
	SysTime.hour    = 0x17;
	SysTime.min     = 0x09;
	SysTime.sec     = 0;


//如果需要做时间设置，请把下面2句话打开	
//	RtcSetDay(&SysTime);
//	RtcSetTime(&SysTime);
	
while(1){
	GetDate(0, NULL);
	GetTime(0, NULL);	
	for(i=0;i<8000000;i++);

}
}