SM59R RTC 功能使用方法
RTC(实时时钟)功能使用方法
1
适用产品：SM59R16A5/ SM59R09A5/ SM59R05A5
2
RTC 使用说明：
1. 建内一组 RTC，时间具有秒、分、时、日、星期、月、年。
2. RTC 晶振选用 32.768KHz，匹配电容建议使用 25pF，或依实际晶振做调教。
3. 二种中断，分别，为 period interrupt 和 ALARM interrupt，且共享 interrupt vector(8Bh)。
32768Hz
devider
RTC counter
Second
(0~59)
RTC counter
Minute
(0~59)
RTC counter
Hour
(0~23)
RTC counter
Day
(1~31)
RTC counter
Month
(1~12)
RTC counter
Year
(00~99)
RTC counter
Week
Alarm INT
Alarm Reg.
(Min, Hour, Day, Week, Month)
Periodical INT
Counter (0.5 Sec)
Periodical INT
Counter (1 Sec)
Periodical INT
Counter (0.5Min)
Compare logic
Periodical INT
Counter (1 Min)
Periodical INT
Counter (0.5 Hour)
Periodical INT
Counter (1 Hour)
Periodical INT
实时时钟与相关缓存器控制图(一)
实时时钟与相关缓存器控制图(二)
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0202
1
Ver.A 2010/06
SM59R RTC 功能使用方法
4. RTC 功能在硬件规划时必须注意，依系统选用内振和外振会有差异，如下说明：
使用 RTC 功能，
且系统使用外部晶振时： 使用 RTC 功能，且系统使用内部晶振时：
RTC 晶振则使用#16 及#17
RTC 晶振则使用#18 及#19
系统晶振脚位使用#18 和#19
建议电路如下图：
建议电路如下图：
16
17
18
FRTC
19
X32OUT/WR/P3.6
X32IN/RD/P3.7
X32OUT/P5.4/XTAL2
X32IN/P5.5/XTAL1
20
3
RTC 相关缓存器：
Mnemonic
Description
Direct
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RESET
RTC
RTCADDR
RTC 地址
9Eh
RTCDATA
RTC 数据
9Fh
Mnemonic
Description
Address
-
-
-
-
RTCADDR[3:0]
00H
RTCDATA[7:0]
Bit 7
Bit 6
Bit 5
00H
Bit 4
Bit 3
ALARMIF
PeriodIntEn
Bit 2
Bit 1
Bit 0
RESET
RTC function
RTCCTRL
RTC 控制缓存器
00h
RTCen
SEC
RTC 秒缓存器
01h
-
MIN
PeriodIF
SEC[6:4]
RTC 分缓存器
02h
-
HOUR
RTC 时缓存器
03h
-
-
DAY
RTC 日缓存器
04h
-
-
RTC 星期缓存器
05h
-
-
WEEK
ALARMInten
MIN[6:4]
HOUR[5:4]
DAY[5:4]
-
INT_SEL[2:0]
SEC[3:0]
-
-
00h
00h
MIN[3:0]
00h
HOUR[3:0]
00h
DAY[3:0]
01h
WEEK[2:0]
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0202
2
Ver.A 2010/06
06h
SM59R RTC 功能使用方法
MONTH
RTC 月缓存器
06h
YEAR
RTC 年缓存器
07h
MINen
HOURen
-
ALMMIN
-
-
-
MONTH[4]
YEAR[7:4]
RTC 分示警
08h
ALMHOUR
RTC 时示警
09h
ALMDAY
RTC 日示警
10h
DAYen
-
RTC 星期示警
11h
WEEKen
-
-
-
RTC 月示警
12h
-
-
ALMMONTH[4]
ALMWEEK
ALMMONT
H
Mnemonic: RTCCTRL
7
6
RTCen
PeriodIF
ALMMIN[6:4]
MONTHe
n
5
ALARMInten
4
ALARMIF
ALMHOUR[5:4]
ALMDAY[5:4]
3
PeriodIntEn
-
MONTH[3:0]
01h
YEAR[3:0]
00h
ALMMIN[3:0]
00h
ALMHOUR[3:0]
00h
ALMDAY[3:0]
00h
ALMWEEK[2:0]
ALMMONTH[3:0]
2
1
INT_SEL[2:0]
Address: 00H
0
Reset
00h
RTCen: RTC 电路启动位
0: 禁止
1: 启动
PeriodIF: 周期性中断旗标位
1: RTC 中断由周期性中断旗标位产生.他必须由软件清零.
ALARMInten: 示警中断启动位
当示警数值与RTC数值相等时将产生示警中断.
0: 示警中断禁止
1: 示警中断启动
ALARMIF: 示警中断旗标位
1: RTC 中断由示警中断产生.他必须由软件清零.
PeriodIntEn: 周期性中断启动位
0: 禁止
1: 启动
INT_SEL[2:0]: RTC 周期性中断之周期由INT_SEL[2:0]选择
000: 设定为每经过0.5秒产生周期性中断
001: 设定为每经过1秒产生周期性中断
010: 设定为每经过0.5分产生周期性中断
011: 设定为每经过1分产生周期性中断
100: 设定为每经过0.5小时产生周期性中断
101: 设定为每经过1小时产生周期性中断
附注: 周期性中断的计数将从RTC缓存器写入的值开始计数.
举例来说，现在时间为 3:23，我们设定INT_SEL[2:0]为0.5小时；第一个周期性中断将在
3:53产生，不是3:30。
Mnemonic: SEC
7
6
5
SEC[6:4]
4
3
2
1
SEC[3:0]
Address: 01H
0
Reset
00H
SEC[6:0]: 以BCD格式显示目前秒数,区间为0~59秒.
SEC[6:4]: 此3位代表秒之十位.
SEC[3:0]: 此4位代表秒之个位.
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0202
3
Ver.A 2010/06
00h
00h
SM59R RTC 功能使用方法
Mnemonic: MIN
7
6
5
MIN[6:4]
4
MIN[3:0]
Address: 02H
0
Reset
00H
3
2
1
HOUR[3:0]
Address: 03H
0
Reset
00H
3
2
3
2
1
MIN[6:0]: 以BCD格式显示目前分钟数,区间为0~59分钟.
MIN[6:4]: 此3位代表分钟之十位.
MIN[3:0]: 此4位代表分钟之个位.
Mnemonic: HOUR
7
6
5
4
HOUR[5:4]
HOUR[5:0]: 以BCD格式显示目前时数,区间为0~23小时.
HOUR[5:4]: 此2位代表时之十位.
HOUR[3:0]: 此4位代表时之个位.
Mnemonic: DAY
7
6
5
4
DAY[5:4]
1
DAY[3:0]
Address: 04H
0
Reset
00H
DAY[5:0]: 以BCD格式显示目前日期,区间为0~31日.
DAY[5:4]: 此2位代表日期之十位.
DAY[3:0]: 此4位代表日期之个位.
Mnemonic: WEEK
7
6
5
4
3
2
1
WEEK[2:0]
Address: 05H
0
Reset
00H
WEEK[2:0]: 显示目前星期.
此缓存器必须由使用者自行填入,并不会于填入年月日后自动产生.
000: 星期日
001: 星期一
010: 星期二
011: 星期三
100: 星期四
101: 星期五
110: 星期六
Mnemonic: MONTH
7
6
5
4
MONTH[4]
3
2
1
MONTH[3:0]
Address: 06H
0
Reset
00H
MONTH[4:0]: 以BCD格式显示目前月份,区间为1~12月.
MONTH[4]: 此位代表月之十位.
MONTH[3:0]: 此4位代表月之个位.
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0202
4
Ver.A 2010/06
SM59R RTC 功能使用方法
Mnemonic: YEAR
7
6
5
YEAR[7:4]
4
3
2
1
YEAR[3:0]
Address: 07H
0
Reset
00H
3
2
1
ALMMIN[3:0]
Address: 08H
0
Reset
00H
YEAR[7:0]: 以BCD格式显示目前年份,区间为0~99年.
YEAR[7:4]: 此4位代表年之十位.
YAER[3:0]: 此4位代表年之个位.
Mnemonic: ALMMIN
7
6
5
MINen
ALMMIN[6:4]
4
MINen: 分示警启动位
0: 禁止; ALMMIN[6:0]填入值不需与RTC值比较,也不会产生示警中断(ALARM INT).
1: 启动; ALMMIN[6:0]填入值需与RTC值比较,并产生示警中断(ALARM INT).
ALMMIN[6:0]: 以BCD格式设定示警中断之分钟数,区间为0~59分钟.
ALMMIN[6:4]: 此3位设定示警中断分钟之十位.
ALMMIN[3:0]: 此4位设定示警中断分钟之个位.
Mnemonic: ALMHOUR
7
6
5
4
HOURen
ALMHOUR[5:4]
3
2
1
ALMHOUR[3:0]
0
Address: 09H
Reset
00H
HOURen: 时示警启动位
0: 禁止; ALMHOUR[5:0]填入值不需与RTC值比较,也不会产生示警中断(ALARM INT).
1: 启动; ALMHOUR[5:0]填入值需与RTC值比较,并产生示警中断(ALARM INT).
ALMHOUR[5:0]: 以BCD格式设定示警中断之时,区间为0~23时.
ALMHOUR[5:4]: 此2位代表示警中断时之十位.
ALMHOUR[3:0]: 此4位代表示警中断时之个位.
Mnemonic: ALMDAY
7
6
DAYen
-
5
4
ALMDAY[5:4]
3
2
1
ALMDAY[3:0]
0
Address: 10H
Reset
00H
DAYen: 日示警启动位
0: 禁止; ALMDAY[5:0]填入值不需与RTC值比较,也不会产生示警中断(ALARM INT).
1: 启动; ALMDAY[5:0]填入值需与RTC值比较,并产生示警中断(ALARM INT).
ALMDAY[5:0] 以BCD格式设定示警中断之日期,区间为0~31日.
ALMDAY[5:4]: 此2位代表示警中断日期之十位.
ALMDAY[3:0]: 此4位代表示警中断日期之个位.
Mnemonic: ALMWEEK
7
6
5
WEEKen
4
3
2
1
ALMWEEK[2:0]
0
Address: 11H
Reset
00H
WEEKen: 星期示警启动位
0: 禁止; ALMWEEK[2:0]填入值不需与RTC值比较,也不会产生示警中断(ALARM INT).
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0202
5
Ver.A 2010/06
SM59R RTC 功能使用方法
1: 启动; ALMWEEK[2:0]填入值需与RTC值比较,并产生示警中断(ALARM INT).
ALMWEEK[2:0] 示警星期设定
000: 星期日
001: 星期一
010: 星期二
011: 星期三
100: 星期四
101: 星期五
110: 星期六
Mnemonic: ALMMONTH
7
6
5
MONTHen
-
4
ALMMONTH[4]
3
2
1
ALMMONTH[3:0]
0
Address: 12H
Reset
00H
MONTHen: 月示警启动位
0: 禁能; ALMMONTH[4:0]填入值不需与RTC值比较,也不会产生示警中断(ALARM INT).
1: 启动; ALMMONTH[4:0]填入值需与RTC值比较,并产生示警中断(ALARM INT).
ALMMONTH[4:0]: 以BCD格式设定示警中断之月份,区间为1~12月.
ALMMONTH[4]: 此位代表示警中断月之十位.
ALMMONTH[3:0]: 此4位代表示警中断月之个位.
4
RTC 中断
4.1 中断向量表(Interrupt vectors table)：
Interrupt Vector
Interrupt Number
Address
*(use Keil C Tool)
IE0 – External interrupt 0
0003h
0
TF0 – Timer 0 interrupt
000Bh
1
IE1 – External interrupt 1
0013h
2
TF1 – Timer 1 interrupt
001Bh
3
RI0/TI0 – Serial channel 0 interrupt
0023h
4
TF2/EXF2 – Timer 2 interrupt
002Bh
5
PWMIF – PWM interrupt
0043h
8
SPIIF – SPI interrupt
004Bh
9
ADCIF – A/D converter interrupt
0053h
10
KBIIF – keyboard Interface interrupt
005Bh
11
LVIIF – Low Voltage Interrupt
0063h
12
IICIF – IIC interrupt
006Bh
13
RI1/TI1 – Serial channel 1 interrupt
0083h
16
RTC/ALARM interrupt
008Bh
17
Interrupt Request Flags
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0202
6
Ver.A 2010/06
SM59R RTC 功能使用方法
Comparator interrupt
0093h
18
*See Keil C about C51 User’s Guide about Interrupt Function description
4.2 中断相关缓存器(Interrupt SFR)
Mnemonic
Description
Bit 7
Direct
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
RESET
Interrupt
IEN0
IEN1
IEN2
IRCON
IRCON2
IP0
IP1
Interrupt Enable
0 register
Interrupt Enable
1 register
Interrupt Enable
2 register
Interrupt request
register
Interrupt request
register 2
Interrupt priority
level 0
Interrupt priority
level 1
A8h
EA
-
ET2
ES0
ET1
EX1
ET0
EX0
00h
B8h
EXEN2
-
IEIIC
IELVI
IEKBI
IEADC
IESPI
IEPWM
00h
9Ah
-
-
-
-
-
ECmpI
ERTC
ES1
00h
C0H
EXF2
TF2
IICIF
LVIIF
KBIIF
ADCIF
SPIIF
PWMIF
00H
97H
-
-
-
-
-
CmpIF
RTCIF
-
00H
A9h
-
-
IP0.5
IP0.4
IP0.3
IP0.2
IP0.1
IP0.0
00h
B9h
-
-
IP1.5
IP1.4
IP1.3
IP1.2
IP1.1
IP1.0
00h
Interrupt Enable 0 register(IEN0)
Mnemonic: IEN0
Address: A8h
7
6
5
4
3
2
1
0
Reset
EA
-
ET2
ES0
ET1
EX1
ET0
EX0
00h
EA: EA = 0 : disable all interrupt.
EA = 1 : enable all interrupt.
ET2: ET2 = 0 : 禁能 Timer 2 溢位中断及 Timer 2 T2EX 外部中断。
(disable Timer 2 overflow interrupt or Timer 2 external reload interrupt.)
ET2 = 1 : 致能 Timer 2 溢位中断及 Timer 2 T2EX 外部中断。
(enable Timer 2 overflow interrupt or Timer 2 external reload interrupt.)
ES0: ES0=0 – Disable Serial channel 0 interrupt.
ES0=1 – Enable Serial channel 0 interrupt.
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0202
7
Ver.A 2010/06
SM59R RTC 功能使用方法
ET1: ET1=0 – Disable Timer 1 overflow interrupt.
ET1=1 – Enable Timer 1 overflow interrupt.
EX1: EX1=0 – Disable external interrupt 1.
EX1=1 – Enable external interrupt 1.
ET0: ET0=0 – Disable Timer 0 overflow interrupt.
ET0=1 – Enable Timer 0 overflow interrupt.
EX0: EX0=0 – Disable external interrupt 0.
EX0=1 – Enable external interrupt 0.
Interrupt Enable 2 register(IEN2)
Mnemonic: IE2
Address: 9Ah
7
6
5
4
3
2
1
0
Reset
-
-
-
-
-
ECmpI
ERTC
ES1
00h
ECmpI: ECmpI =0 – Disable Comparator interrupt.
ECmpI =1 – Enable Comparator interrupt(include comparator_0 and comparator_1).
ERTC: ERTC =0 – Disable RTC interrupt.
ERTC =1 – Enable RTC interrupt(include Periodical and Alarm Int).
ES1: ES1=0 – Disable Serial channel 1 interrupt.
ES1=1 – Enable Serial channel 1 interrupt.
Interrupt request register 2(IRCON2)
Mnemonic:
Address: 97h
7
6
5
4
3
2
1
0
Reset
-
-
-
-
-
CmpIF
RTCIF
-
00H
RTCIF RTC interrupt flag(include Periodical and Alarm Int).
HW will clear this flag automatically when enter interrupt vector.
SW can clear this flag also.(in case RTC INT disable)
CmpIF Comparator interrupt flag,
HW will clear this flag automatically when enter interrupt vector.
SW can clear this flag also.(in case analog comparator INT disable)
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0202
8
Ver.A 2010/06
SM59R RTC 功能使用方法
5
Timer 2 中断应用参考程序及设定：
(1) 中断致能设定：
IEN2
|= 0x02;
// Enable RTC_INT.
EA
= 1;
// All interrupt enable
RTCADDR = RTCCTRL;
RTCDATA = 0xA8;
// RTCen=1, ALARMInten=1, PeriodIntEn=1, Period=0.5 sec
(2) 中断程序表示：
void ISR_RTC(void) interrupt 17
{
RTCADDR = RTCCTRL;
if(RTCDATA & PeriodIF)
{
// Must clear by software write "0".
RTCADDR = RTCCTRL;
RTCDATA &= (~PeriodIF);
}
else if(RTCDATA & ALARMIF)
{
// Must clear by software write "0".
RTCADDR = RTCCTRL;
RTCDATA &= (~ALARMIF);
}
// HW will clear this flag automatically.
//IRCON2 &= (~RTCIF);
}
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0202
9
Ver.A 2010/06
SM59R RTC 功能使用方法
6
RTC 范例程序说明:
6.1 此范例可使用超机终端机做通讯，并依据操作说明输入选项及设定即可，超机终端机请设定如下：
7
RTC 应用的范例程序(一)
Description
Define
//以下定义已加入 SM59R16A5.h
/* RTC Define */
#define RTCCTRL
0
#define RTCSEC
1
#define RTCMIN
2
#define RTCHOUR
3
#define RTCDAY
4
#define RTCWEEK
5
#define RTCMONTH
6
#define RTCYEAR
7
#define RTCALMMIN
8
#define RTCALMHOUR 9
#define RTCALMDAY
10
#define RTCALMWEEK 11
#define RTCALMMONTH 12
#define
#define
#define
#define
#define
RTCen
PeriodIF
ALARMInten
ALARMIF
PeriodIntEn
0x80
0x40
0x20
0x10
0x08
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0202
10
Ver.A 2010/06
SM59R RTC 功能使用方法
#define RTCIF
Main program
0X02
#define RTC_half_sec
#define RTC_one_sec
#define RTC_half_min
#define RTC_one_min
#define RTC_half_hour
#define RTC_one_hour
#include <stdio.h>
#include <SM59R16A5.h>
xdata
xdata
xdata
xdata
char
char
char
char
0
1
2
3
4
5
CMD_001=0, CMD_002=0;
RTC_BFU[13];
RTC_Period_target=5;
RTC_Period_count=0;
#define Pause_RTC_INT() IEN2
#define Gono_RTC_INT() IEN2
&= 0xFD;
|= 0x02;
// Disable RTC_INT.
// Enable RTC_INT.
/*void delay(int dd)
{
while(dd--);
} */
void Reset_MCU(void)
{
TAKEY = 0x55;
TAKEY = 0xAA;
TAKEY = 0x5A;
SWRES = 0xFF;
}
void Show_BCD(char dat)
{
putchar((dat>>4) | 0x30);
putchar((dat&0x0F) | 0x30);
}
void Show_Manual(void)
{
printf ("\n");
printf ("SM59R16A5 RTC manual: \n");
printf ("1. RTC now \n");
printf ("2. SET RTC time\n");
printf ("3. SET Period \n");
printf ("4. ON/OFF Period \n");
printf ("5. SET ALARM \n");
printf ("6. ON/OFF ALARM \n");
printf ("Other. System Reset!! \n");
printf ("Enter:");
}
void Write_RTC_SFR(char addr, char dat)
{
RTCADDR = addr; RTCDATA = dat;
}
char Read_RTC_SFR(char addr)
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0202
11
Ver.A 2010/06
SM59R RTC 功能使用方法
{
char dat;
RTCADDR = addr; dat = RTCDATA;
return dat;
}
void Read_RTC_Now_Time(void)
{
RTC_BFU[RTCYEAR]
= Read_RTC_SFR(RTCYEAR);
RTC_BFU[RTCMONTH]
= Read_RTC_SFR(RTCMONTH);
RTC_BFU[RTCDAY]
= Read_RTC_SFR(RTCDAY);
RTC_BFU[RTCWEEK]
= Read_RTC_SFR(RTCWEEK);
RTC_BFU[RTCHOUR]
= Read_RTC_SFR(RTCHOUR);
RTC_BFU[RTCMIN]
= Read_RTC_SFR(RTCMIN);
RTC_BFU[RTCSEC]
= Read_RTC_SFR(RTCSEC);
}
void Show_RTC_Now_Time(void)
{
printf("RTC Now:\t");
Read_RTC_Now_Time();
Show_BCD( 0x20 );
Show_BCD( RTC_BFU[RTCYEAR] );
putchar(0x2F);
Show_BCD( RTC_BFU[RTCMONTH] );
putchar(0x2F);
Show_BCD( RTC_BFU[RTCDAY] );
putchar(0x20);
// year
//
//
//
//
//
/
month
/
day
SPACE
putchar(0x28);
Show_BCD( RTC_BFU[RTCWEEK] );
putchar(0x29);
printf("\t");
//
//
//
//
(
week
)
tab
Show_BCD( RTC_BFU[RTCHOUR] );
putchar(0x3A);
Show_BCD( RTC_BFU[RTCMIN] );
putchar(0x3A);
Show_BCD( RTC_BFU[RTCSEC] );
printf("\n");
//
//
//
//
//
hour
:
min
:
sec
}
void Show_RTC_ALARM_Set(void)
{
RTCADDR = RTCCTRL;
if(RTCDATA&0x20)
printf("ALARM Status:\tON\n");
else
printf("ALARM Status:\tOFF\n");
printf("ALARM Setting:\tYYYY/MM/DD(week)hr:min\n");
printf("\t\t");
RTCADDR = RTCYEAR;
putchar(0x2F);
Show_BCD( 0x20 );
Show_BCD( RTCDATA );
// year
// /
Show_BCD(Read_RTC_SFR(RTCALMMONTH) & 0x1F);
// month
putchar(0x2F);
// /
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0202
12
Ver.A 2010/06
SM59R RTC 功能使用方法
Show_BCD(Read_RTC_SFR(RTCALMDAY) & 0x3F );
putchar(0x20);
// day
// SPACE
putchar(0x28);
Show_BCD(Read_RTC_SFR(RTCALMWEEK) & 0x07 );
putchar(0x29);
printf("\t");
//
//
//
//
Show_BCD(Read_RTC_SFR(RTCALMHOUR) & 0x3F );
putchar(0x3A);
Show_BCD(Read_RTC_SFR(RTCALMMIN) & 0x07 );
printf("\n");
// hour
// :
// min
(
week
)
tab
}
void SET_Period(void)
{
// char h_dat, l_dat;
Show_RTC_Now_Time();
Show_RTC_ALARM_Set();
printf
printf
printf
printf
printf
printf
printf
printf
("\t");
("\t");
("\t");
("\t");
("\t");
("\t");
("\t");
("\t");
printf
printf
printf
printf
printf
printf
printf
printf
("1. 01 sec \n");
("2. 05 sec \n");
("3. 10 sec \n");
("4. 20 sec \n");
("5. 30 sec \n");
("6. 60 sec \n");
("other. Exit!! \n");
("Enter:");
CMD_002 = getchar();
switch (CMD_002)
{
case 0x31: RTC_Period_target= 1;//
break;
case 0x32: RTC_Period_target= 5;//
break;
case 0x33: RTC_Period_target=10;//
break;
case 0x34: RTC_Period_target=20;//
break;
case 0x35: RTC_Period_target=30;//
break;
case 0x36: RTC_Period_target=60;//
break;
default:
break;
}// end switch
printf ("\n");
01 sec
05 sec
10 sec
20 sec
30 sec
60 sec
}
void ON_OFF_Period(void)
{
printf ("\t"); printf ("1.
Set period interrupt ON \n");
printf ("\t"); printf ("other. Set period interrupt OFF \n");
printf ("\t"); printf ("Enter:");
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0202
13
Ver.A 2010/06
SM59R RTC 功能使用方法
CMD_002 = getchar();
RTCADDR = RTCCTRL;
if(CMD_002==0x31)
printf ("\n");
RTCDATA &= 0xF7;
RTCDATA |= 0x08;
// PeriodIntEn=0
// PeriodIntEn=1
}
void ON_OFF_ALARM(void)
{
printf ("\t"); printf ("1.
Set ALARM ON \n");
printf ("\t"); printf ("other. Set ALARM OFF \n");
printf ("\t"); printf ("Enter:");
CMD_002 = getchar();
RTCADDR = RTCCTRL;
if(CMD_002==0x31)
printf ("\n");
RTCDATA &= 0xDF;
RTCDATA |= 0x20;
// ALARMIntEn=0
// ALARMIntEn=1
}
void SET_RTC_Time(void)
{
char h_dat, l_dat;
while(1)
{
Show_RTC_Now_Time();
printf
printf
printf
printf
printf
printf
printf
printf
printf
printf
("\t");
("\t");
("\t");
("\t");
("\t");
("\t");
("\t");
("\t");
("\t");
("\t");
printf
printf
printf
printf
printf
printf
printf
printf
printf
printf
("<Which one is your choice?>\n");
("1. Year \n");
("2. Month \n");
("3. Day
\n");
("4. Week \n");
("5. Hour \n");
("6. Minute \n");
("7. Second \n");
("other. Exit!!\n");
("Enter:");
CMD_002 = getchar();
printf ("\n");
if(CMD_002<0x31 | CMD_002>0x37) break;
switch (CMD_002)
{
case 0x31:
printf ("\tYear:");
h_dat
= getchar()-0x30;
l_dat
= getchar()-0x30;
Write_RTC_SFR(RTCYEAR, (h_dat<<4) | l_dat );
printf ("\n");
break;
case 0x32:
printf ("\tMonth:");
h_dat
= getchar()-0x30;
l_dat
= getchar()-0x30;
Write_RTC_SFR(RTCMONTH, (h_dat<<4) | l_dat );
printf ("\n");
break;
case 0x33:
printf ("\tDay:\n");
h_dat
= getchar()-0x30;
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0202
14
Ver.A 2010/06
SM59R RTC 功能使用方法
l_dat
= getchar()-0x30;
Write_RTC_SFR(RTCDAY, (h_dat<<4) | l_dat );
printf ("\n");
break;
case 0x34:
printf ("\tWeek:");
Write_RTC_SFR(RTCWEEK, (getchar()-0x30) | 0x80);
printf ("\n");
break;
case 0x35:
printf ("\tHour:");
h_dat
= getchar()-0x30;
l_dat
= getchar()-0x30;
Write_RTC_SFR(RTCHOUR, (h_dat<<4) | l_dat | 0x80);
printf ("\n");
break;
case 0x36:
printf ("\tMinute:");
h_dat
= getchar()-0x30;
l_dat
= getchar()-0x30;
Write_RTC_SFR(RTCMIN, (h_dat<<4) | l_dat | 0x80);
printf ("\n");
case 0x37:
printf ("\tSecond:");
h_dat
= getchar()-0x30;
l_dat
= getchar()-0x30;
Write_RTC_SFR(RTCSEC, (h_dat<<4) | l_dat | 0x80);
printf ("\n");
break;
default:
break;
}// end switch
}// end while(1)
}
void SET_ALARM(void)
{
char h_dat, l_dat;
while(1)
{
Show_RTC_Now_Time();
Show_RTC_ALARM_Set();
printf ("\t"); printf
printf ("\t"); printf
printf ("\t"); printf
printf ("\t"); printf
printf ("\t"); printf
printf ("\t"); printf
printf ("\t"); printf
printf ("\t"); printf
("<Which one is your choice?>\n");
("1. Month \n");
("2. Day
\n");
("3. Week \n");
("4. Hour \n");
("5. Minute \n");
("Other. Exit!!\n");
("Enter:");
CMD_002 = getchar();
printf ("\n");
if(CMD_002<0x31 | CMD_002>0x35) break;
switch (CMD_002)
{
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0202
15
Ver.A 2010/06
SM59R RTC 功能使用方法
case 0x31:
printf ("\tMonth:");
h_dat
= getchar()-0x30;
l_dat
= getchar()-0x30;
Write_RTC_SFR(RTCALMMONTH, (h_dat<<4) | l_dat | 0x80);
printf ("\n");
break;
case 0x32:
printf ("\tDay:");
h_dat
= getchar()-0x30;
l_dat
= getchar()-0x30;
Write_RTC_SFR(RTCALMDAY, (h_dat<<4) | l_dat | 0x80);
printf ("\n");
break;
case 0x33:
printf ("\tWeek:");
Write_RTC_SFR(RTCALMWEEK, (getchar()-0x30) | 0x80);
printf ("\n");
break;
case 0x34:
printf ("\tHour:");
h_dat
= getchar()-0x30;
l_dat
= getchar()-0x30;
Write_RTC_SFR(RTCALMHOUR, (h_dat<<4) | l_dat | 0x80);
printf ("\n");
break;
case 0x35:
printf ("\tMinute:");
h_dat
= getchar()-0x30;
l_dat
= getchar()-0x30;
Write_RTC_SFR(RTCALMMIN, (h_dat<<4) | l_dat | 0x80);
printf ("\n");
break;
default:
break;
}// end switch
}// end while(1)
}
void Init_UART(void)
{
SCON = 0x50;
TMOD |= 0x20;
PCON = 0x80;
// TH1 =
0xD0;
// TH1 = 0xFE;
TH1 = 0xFF;
// TH1 = 0xFF;
TCON= 0x40;
TI
= 1;
Printf("")*/
// EA = 1;
// ES = 1;
}
//SCON: serail mode 1, 8-bit UART, enable receive
/* TMOD: timer 1, mode 2, 8-bit reload
//SMOD = 1;
//Baud:2400 fosc=22.1184MHz
OK!
//Baud:57600 fosc=22.1184MHz
OK!
//Baud:115200 fosc=22.1184MHz
OK!
//Baud:57600 fosc=11.0592MHz
OK!
//timer 1 run
/*TI: set TI to send first char of UART
*/
for
//all interrupt enable
//UART enable
void Init_RTC(void)
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0202
16
Ver.A 2010/06
SM59R RTC 功能使用方法
{
//
//
//
sec
IEN2
IEN2
EA
RTCADDR
RTCDATA
|= 0x02;
&= 0xFD;
= 1;
= RTCCTRL;
= 0x81;
// Enable RTC_INT.
// Disable RTC_INT.
// All interrupt enable
// RTCen=1, ALARMInten=0, PeriodIntEn=0, Period=
1
Write_RTC_SFR(RTCCTRL, RTCen | RTC_one_sec );
Write_RTC_SFR(
Write_RTC_SFR(
Write_RTC_SFR(
Write_RTC_SFR(
Write_RTC_SFR(
Write_RTC_SFR(
Write_RTC_SFR(
RTCYEAR,
RTCMONTH,
RTCDAY,
RTCWEEK,
RTCALMMONTH,
RTCALMDAY,
RTCALMWEEK,
(0x10));
(0x05));
(0x01));
(0x06));
(0x05));
(0x01));
(0x06));
}
void ISR_RTC(void) interrupt 17
{
RTCADDR = RTCCTRL;
if(RTCDATA & PeriodIF)
{
RTC_Period_count++;
if(RTC_Period_count >= RTC_Period_target)
{
printf ("\n<RTC Period ISR occur> ");
Show_RTC_Now_Time();
RTC_Period_count =0;
}
RTCADDR = RTCCTRL;
RTCDATA &= (~PeriodIF);
// Must clear by software write "0".
}
// else if(RTCDATA & ALARMIF)
if(RTCDATA & ALARMIF)
{
printf("\n<RTC ALARM ISR occur>");
Show_RTC_Now_Time();
Show_Manual();
RTCADDR = RTCCTRL;
RTCDATA &= (~ALARMIF);
// Must clear by software write "0".
}
//IRCON2 &= (~RTCIF); //RTCIF=0;// HW will clear this flag automatically.
}
void main(void)
{
Init_UART();
putchar(0x31);
putchar(0x32);
putchar(0x33);
printf("\n");
printf("\n");
printf("\n");
Init_RTC();
Show_RTC_Now_Time();
Show_RTC_ALARM_Set();
while(1)
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0202
17
Ver.A 2010/06
SM59R RTC 功能使用方法
{
Show_Manual();
CMD_001 = getchar();
printf ("\n\n");
Pause_RTC_INT();
switch (CMD_001)
{
case 0x31:
Show_RTC_Now_Time();
break;
case 0x32:
SET_RTC_Time();
break;
case 0x33:
SET_Period();
break;
case 0x34:
ON_OFF_Period();
break;
case 0x35:
SET_ALARM();
break;
case 0x36:
ON_OFF_ALARM();
break;
default:
Reset_MCU();
break;
}//end switch
//printf("\n");
CMD_001=0;
Gono_RTC_INT();
}
}
Specifications subject to change without notice, contact your sales representatives for the most recent information.
ISSFA-0202
18
Ver.A 2010/06