masa miya / Mbed 2 deprecated RTC8564NB_Clock

This is the clock which used highly quality RTC module RT8564NB. This module is I2C controllable. At the time of poweron/reset, the start time received from ntp server. See: http://blogs.yahoo.co.jp/jf1vrr_station/19895596.html (Japanese)

Dependencies:   EthernetNetIf NTPClient_NetServices TextLCD mbed

main.cpp@1:7c1d3790f08d, 2011-04-27 (annotated)

Committer:
jf1vrr
Date:
Wed Apr 27 11:03:21 2011 +0000
Revision:
1:7c1d3790f08d
Parent:
0:50e7bcac5eb9 
Rev. 0.01B Add time justify function, sec LED

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jf1vrr 1:7c1d3790f08d 1 /*
jf1vrr 1:7c1d3790f08d 2 This is the clock which used highly quality RTC module RT8564NB.
jf1vrr 0:50e7bcac5eb9 3 This module is I2C controllable. At the time of poweron/reset, the start
jf1vrr 1:7c1d3790f08d 4 time received from ntp server.
jf1vrr 1:7c1d3790f08d 5
jf1vrr 1:7c1d3790f08d 6 Revision History:
jf1vrr 1:7c1d3790f08d 7 Rev. 0.01A 2011/04/26 New
jf1vrr 1:7c1d3790f08d 8 Rev. 0.01B 2011/04/27 Add time justify function, sec LED
jf1vrr 0:50e7bcac5eb9 9 */
jf1vrr 0:50e7bcac5eb9 10 #include "mbed.h"
jf1vrr 0:50e7bcac5eb9 11 #include "TextLCD.h"
jf1vrr 0:50e7bcac5eb9 12 #include "EthernetNetIf.h"
jf1vrr 0:50e7bcac5eb9 13 #include "NTPClient.h"
jf1vrr 0:50e7bcac5eb9 14
jf1vrr 0:50e7bcac5eb9 15 #define RTC8564NB_ADR 0xA2
jf1vrr 0:50e7bcac5eb9 16
jf1vrr 0:50e7bcac5eb9 17 #define CONTROL1 0x00
jf1vrr 0:50e7bcac5eb9 18 #define CONTROL2 0x01
jf1vrr 0:50e7bcac5eb9 19 #define SECONDS 0x02
jf1vrr 0:50e7bcac5eb9 20 #define MINUTES 0x03
jf1vrr 0:50e7bcac5eb9 21 #define HOURS 0x04
jf1vrr 0:50e7bcac5eb9 22 #define DAYS 0x05
jf1vrr 0:50e7bcac5eb9 23 #define WEEKDAYS 0x06
jf1vrr 0:50e7bcac5eb9 24 #define MONTHS 0x07
jf1vrr 0:50e7bcac5eb9 25 #define YEARS 0x08
jf1vrr 0:50e7bcac5eb9 26 #define MINUTE_ALARM 0x09
jf1vrr 0:50e7bcac5eb9 27 #define HOUR_ALARM 0x0A
jf1vrr 0:50e7bcac5eb9 28 #define DAY_ALARM 0x0B
jf1vrr 0:50e7bcac5eb9 29 #define WEEKDAY_ALARM 0x0C
jf1vrr 0:50e7bcac5eb9 30 #define CLOCKOUT_FREQ 0x0D
jf1vrr 0:50e7bcac5eb9 31 #define TIMER_CINTROL 0x0E
jf1vrr 0:50e7bcac5eb9 32 #define TIMER 0x0F
jf1vrr 0:50e7bcac5eb9 33 #define _READ 0x01
jf1vrr 0:50e7bcac5eb9 34
jf1vrr 0:50e7bcac5eb9 35 TextLCD lcd(p24, p26, p27, p28, p29, p30);
jf1vrr 0:50e7bcac5eb9 36 EthernetNetIf eth;
jf1vrr 0:50e7bcac5eb9 37 NTPClient ntp;
jf1vrr 0:50e7bcac5eb9 38 I2C i2c(p9, p10);
jf1vrr 1:7c1d3790f08d 39 DigitalOut sec_led(LED1);
jf1vrr 1:7c1d3790f08d 40 DigitalOut test_led(LED2);
jf1vrr 1:7c1d3790f08d 41 InterruptIn just_button(p15);
jf1vrr 1:7c1d3790f08d 42
jf1vrr 0:50e7bcac5eb9 43 int offset_JAPAN = 32400;
jf1vrr 0:50e7bcac5eb9 44
jf1vrr 0:50e7bcac5eb9 45 char year, month, day, week;
jf1vrr 0:50e7bcac5eb9 46 char hour, minute, sec;
jf1vrr 0:50e7bcac5eb9 47 char ntp_year[3], ntp_month[3], ntp_day[3], ntp_week[4];
jf1vrr 0:50e7bcac5eb9 48 char ntp_hour[3], ntp_minute[3], ntp_sec[3];
jf1vrr 0:50e7bcac5eb9 49 char week_val;
jf1vrr 0:50e7bcac5eb9 50
jf1vrr 0:50e7bcac5eb9 51 char week_chr[7][4] = {"Sun","Mon","Tue","Wed","Thu","Fri","Sat"};
jf1vrr 0:50e7bcac5eb9 52
jf1vrr 0:50e7bcac5eb9 53 void rtc_write(char address, char value)
jf1vrr 0:50e7bcac5eb9 54 {
jf1vrr 0:50e7bcac5eb9 55 i2c.start();
jf1vrr 0:50e7bcac5eb9 56 i2c.write(RTC8564NB_ADR);
jf1vrr 0:50e7bcac5eb9 57 i2c.write(address);
jf1vrr 0:50e7bcac5eb9 58 i2c.write(value);
jf1vrr 0:50e7bcac5eb9 59 i2c.stop();
jf1vrr 0:50e7bcac5eb9 60 }
jf1vrr 0:50e7bcac5eb9 61
jf1vrr 0:50e7bcac5eb9 62 char rtc_read(char address)
jf1vrr 0:50e7bcac5eb9 63 {
jf1vrr 0:50e7bcac5eb9 64 char value;
jf1vrr 0:50e7bcac5eb9 65 i2c.start();
jf1vrr 0:50e7bcac5eb9 66 i2c.write(RTC8564NB_ADR);
jf1vrr 0:50e7bcac5eb9 67 i2c.write(address);
jf1vrr 0:50e7bcac5eb9 68 i2c.start();
jf1vrr 0:50e7bcac5eb9 69 i2c.write(RTC8564NB_ADR | _READ);
jf1vrr 0:50e7bcac5eb9 70 value = i2c.read(0);
jf1vrr 0:50e7bcac5eb9 71 i2c.stop();
jf1vrr 0:50e7bcac5eb9 72
jf1vrr 0:50e7bcac5eb9 73 return value;
jf1vrr 0:50e7bcac5eb9 74 }
jf1vrr 1:7c1d3790f08d 75
jf1vrr 1:7c1d3790f08d 76 void time_just()
jf1vrr 1:7c1d3790f08d 77 {
jf1vrr 1:7c1d3790f08d 78 char _min, _hour;
jf1vrr 1:7c1d3790f08d 79 test_led = !test_led;
jf1vrr 1:7c1d3790f08d 80 _min = rtc_read(MINUTES);
jf1vrr 1:7c1d3790f08d 81 if (_min >= 0x30) {
jf1vrr 1:7c1d3790f08d 82 _hour = rtc_read(HOURS);
jf1vrr 1:7c1d3790f08d 83 if (_hour == 0x23)
jf1vrr 1:7c1d3790f08d 84 _hour = 0x00;
jf1vrr 1:7c1d3790f08d 85 else if ((_hour & 0x0F) == 0x09)
jf1vrr 1:7c1d3790f08d 86 _hour = (_hour & 0xF0) + 0x10;
jf1vrr 1:7c1d3790f08d 87 else
jf1vrr 1:7c1d3790f08d 88 _hour = _hour + 0x01;
jf1vrr 1:7c1d3790f08d 89 rtc_write(HOURS, _hour);
jf1vrr 1:7c1d3790f08d 90 }
jf1vrr 1:7c1d3790f08d 91 rtc_write(MINUTES, 0x00);
jf1vrr 1:7c1d3790f08d 92 rtc_write(SECONDS, 0x00);
jf1vrr 1:7c1d3790f08d 93 }
jf1vrr 0:50e7bcac5eb9 94
jf1vrr 0:50e7bcac5eb9 95 int main() {
jf1vrr 1:7c1d3790f08d 96 just_button.rise(&time_just);
jf1vrr 1:7c1d3790f08d 97
jf1vrr 0:50e7bcac5eb9 98 lcd.cls();
jf1vrr 0:50e7bcac5eb9 99 lcd.printf("RTC8564NB CLOCK" );
jf1vrr 0:50e7bcac5eb9 100 wait(2.0);
jf1vrr 0:50e7bcac5eb9 101
jf1vrr 0:50e7bcac5eb9 102 /* Set up Ethernet */
jf1vrr 0:50e7bcac5eb9 103 lcd.cls();
jf1vrr 0:50e7bcac5eb9 104 lcd.printf("Setting up Eth\n");
jf1vrr 0:50e7bcac5eb9 105 EthernetErr ethErr = eth.setup();
jf1vrr 0:50e7bcac5eb9 106 if (ethErr) {
jf1vrr 0:50e7bcac5eb9 107 lcd.cls();
jf1vrr 0:50e7bcac5eb9 108 lcd.printf("Error with Eth\nNum: %d", ethErr);
jf1vrr 0:50e7bcac5eb9 109 return -1;
jf1vrr 0:50e7bcac5eb9 110 }
jf1vrr 0:50e7bcac5eb9 111
jf1vrr 0:50e7bcac5eb9 112 /* Set up NTP */
jf1vrr 0:50e7bcac5eb9 113 lcd.printf("Setting up NTP\n");
jf1vrr 0:50e7bcac5eb9 114 Host server(IpAddr(), 123, "ntp1.jst.mfeed.ad.jp");
jf1vrr 0:50e7bcac5eb9 115 ntp.setTime(server);
jf1vrr 0:50e7bcac5eb9 116
jf1vrr 0:50e7bcac5eb9 117 time_t seconds = time(NULL)+offset_JAPAN;
jf1vrr 0:50e7bcac5eb9 118
jf1vrr 0:50e7bcac5eb9 119 lcd.cls();
jf1vrr 0:50e7bcac5eb9 120 strftime(ntp_year, 16, "%y", localtime(&seconds));
jf1vrr 0:50e7bcac5eb9 121 strftime(ntp_month, 16, "%m", localtime(&seconds));
jf1vrr 0:50e7bcac5eb9 122 strftime(ntp_day, 16, "%d", localtime(&seconds));
jf1vrr 0:50e7bcac5eb9 123 strftime(ntp_week, 16, "%a", localtime(&seconds));
jf1vrr 0:50e7bcac5eb9 124 strftime(ntp_hour, 16, "%H", localtime(&seconds));
jf1vrr 0:50e7bcac5eb9 125 strftime(ntp_minute, 16, "%M", localtime(&seconds));
jf1vrr 0:50e7bcac5eb9 126 strftime(ntp_sec, 16, "%S", localtime(&seconds));
jf1vrr 0:50e7bcac5eb9 127
jf1vrr 0:50e7bcac5eb9 128 switch (ntp_week[0]){
jf1vrr 0:50e7bcac5eb9 129 case 'S':
jf1vrr 0:50e7bcac5eb9 130 switch (ntp_week[1]) {
jf1vrr 0:50e7bcac5eb9 131 case 'u': week_val = 0x00; break;
jf1vrr 0:50e7bcac5eb9 132 case 'a': week_val = 0x06; break;
jf1vrr 0:50e7bcac5eb9 133 }
jf1vrr 0:50e7bcac5eb9 134 break;
jf1vrr 0:50e7bcac5eb9 135 case 'M': week_val = 0x01; break;
jf1vrr 0:50e7bcac5eb9 136 case 'T':
jf1vrr 0:50e7bcac5eb9 137 switch (ntp_week[1]) {
jf1vrr 0:50e7bcac5eb9 138 case 'u': week_val = 0x02; break;
jf1vrr 0:50e7bcac5eb9 139 case 'h': week_val = 0x04; break;
jf1vrr 0:50e7bcac5eb9 140 }
jf1vrr 0:50e7bcac5eb9 141 break;
jf1vrr 0:50e7bcac5eb9 142 case 'W': week_val = 0x03; break;
jf1vrr 0:50e7bcac5eb9 143 case 'F': week_val = 0x05; break;
jf1vrr 0:50e7bcac5eb9 144 }
jf1vrr 0:50e7bcac5eb9 145
jf1vrr 0:50e7bcac5eb9 146 rtc_write(CONTROL1, 0x20); //stop
jf1vrr 0:50e7bcac5eb9 147 rtc_write(CONTROL2, 0x00);
jf1vrr 0:50e7bcac5eb9 148 rtc_write(YEARS, ((ntp_year[0]-0x30)<<4)+(ntp_year[1]-0x30));
jf1vrr 0:50e7bcac5eb9 149 rtc_write(MONTHS, ((ntp_month[0]-0x30)<<4)+(ntp_month[1]-0x30));
jf1vrr 0:50e7bcac5eb9 150 rtc_write(DAYS, ((ntp_day[0]-0x30)<<4)+(ntp_day[1]-0x30));
jf1vrr 0:50e7bcac5eb9 151 rtc_write(HOURS, ((ntp_hour[0]-0x30)<<4)+(ntp_hour[1]-0x30));
jf1vrr 0:50e7bcac5eb9 152 rtc_write(MINUTES, ((ntp_minute[0]-0x30)<<4)+(ntp_minute[1]-0x30));
jf1vrr 0:50e7bcac5eb9 153 rtc_write(SECONDS, ((ntp_sec[0]-0x30)<<4)+(ntp_sec[1]-0x30));
jf1vrr 0:50e7bcac5eb9 154 rtc_write(WEEKDAYS, week_val);
jf1vrr 0:50e7bcac5eb9 155 rtc_write(CLOCKOUT_FREQ, 0x00); // 0x83 = TE on & 1Hz
jf1vrr 0:50e7bcac5eb9 156 rtc_write(TIMER_CINTROL, 0x00);
jf1vrr 0:50e7bcac5eb9 157 rtc_write(CONTROL1, 0x00); //start
jf1vrr 0:50e7bcac5eb9 158
jf1vrr 0:50e7bcac5eb9 159 while(1) {
jf1vrr 0:50e7bcac5eb9 160 year = rtc_read(YEARS);
jf1vrr 0:50e7bcac5eb9 161 month = rtc_read(MONTHS);
jf1vrr 0:50e7bcac5eb9 162 day = rtc_read(DAYS);
jf1vrr 0:50e7bcac5eb9 163 week = rtc_read(WEEKDAYS);
jf1vrr 0:50e7bcac5eb9 164 hour = rtc_read(HOURS);
jf1vrr 0:50e7bcac5eb9 165 minute = rtc_read(MINUTES);
jf1vrr 0:50e7bcac5eb9 166 sec = rtc_read(SECONDS);
jf1vrr 0:50e7bcac5eb9 167 lcd.locate(0,0);
jf1vrr 0:50e7bcac5eb9 168 lcd.printf("20%c%c/%c%c/%c%c %s",
jf1vrr 0:50e7bcac5eb9 169 ((year >> 4) & 0x03) + 0x30, (year & 0x0F) + 0x30,
jf1vrr 0:50e7bcac5eb9 170 ((month >> 4) & 0x01) + 0x30, (month & 0x0F) + 0x30,
jf1vrr 0:50e7bcac5eb9 171 ((day >> 4) & 0x03)+ 0x30, (day & 0x0F) + 0x30,
jf1vrr 0:50e7bcac5eb9 172 week_chr[week & 0x07]);
jf1vrr 0:50e7bcac5eb9 173 lcd.locate(0,1);
jf1vrr 0:50e7bcac5eb9 174 lcd.printf("%c%c:%c%c:%c%c",
jf1vrr 0:50e7bcac5eb9 175 ((hour >> 4) & 0x03) + 0x30, (hour & 0x0F) + 0x30,
jf1vrr 0:50e7bcac5eb9 176 (minute >> 4) + 0x30, (minute & 0x0F) + 0x30,
jf1vrr 0:50e7bcac5eb9 177 (sec >> 4) + 0x30, (sec & 0x0F) + 0x30 );
jf1vrr 1:7c1d3790f08d 178
jf1vrr 1:7c1d3790f08d 179 sec_led = !sec_led;
jf1vrr 1:7c1d3790f08d 180 wait(0.5);
jf1vrr 0:50e7bcac5eb9 181 }
jf1vrr 0:50e7bcac5eb9 182 }