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@0:50e7bcac5eb9, 2011-04-26 (annotated)

Committer:
jf1vrr
Date:
Tue Apr 26 07:53:06 2011 +0000
Revision:
0:50e7bcac5eb9
Child:
1:7c1d3790f08d
Rev. 0.01A 2011/04/26

Who changed what in which revision?

UserRevisionLine numberNew contents of line
jf1vrr 0:50e7bcac5eb9 1 /*This is the clock which used highly quality RTC module RT8564NB.
jf1vrr 0:50e7bcac5eb9 2 This module is I2C controllable. At the time of poweron/reset, the start
jf1vrr 0:50e7bcac5eb9 3 time received from ntp server.
jf1vrr 0:50e7bcac5eb9 4 */
jf1vrr 0:50e7bcac5eb9 5 #include "mbed.h"
jf1vrr 0:50e7bcac5eb9 6 #include "TextLCD.h"
jf1vrr 0:50e7bcac5eb9 7 #include "EthernetNetIf.h"
jf1vrr 0:50e7bcac5eb9 8 #include "NTPClient.h"
jf1vrr 0:50e7bcac5eb9 9
jf1vrr 0:50e7bcac5eb9 10 #define RTC8564NB_ADR 0xA2
jf1vrr 0:50e7bcac5eb9 11
jf1vrr 0:50e7bcac5eb9 12 #define CONTROL1 0x00
jf1vrr 0:50e7bcac5eb9 13 #define CONTROL2 0x01
jf1vrr 0:50e7bcac5eb9 14 #define SECONDS 0x02
jf1vrr 0:50e7bcac5eb9 15 #define MINUTES 0x03
jf1vrr 0:50e7bcac5eb9 16 #define HOURS 0x04
jf1vrr 0:50e7bcac5eb9 17 #define DAYS 0x05
jf1vrr 0:50e7bcac5eb9 18 #define WEEKDAYS 0x06
jf1vrr 0:50e7bcac5eb9 19 #define MONTHS 0x07
jf1vrr 0:50e7bcac5eb9 20 #define YEARS 0x08
jf1vrr 0:50e7bcac5eb9 21 #define MINUTE_ALARM 0x09
jf1vrr 0:50e7bcac5eb9 22 #define HOUR_ALARM 0x0A
jf1vrr 0:50e7bcac5eb9 23 #define DAY_ALARM 0x0B
jf1vrr 0:50e7bcac5eb9 24 #define WEEKDAY_ALARM 0x0C
jf1vrr 0:50e7bcac5eb9 25 #define CLOCKOUT_FREQ 0x0D
jf1vrr 0:50e7bcac5eb9 26 #define TIMER_CINTROL 0x0E
jf1vrr 0:50e7bcac5eb9 27 #define TIMER 0x0F
jf1vrr 0:50e7bcac5eb9 28 #define _READ 0x01
jf1vrr 0:50e7bcac5eb9 29
jf1vrr 0:50e7bcac5eb9 30 TextLCD lcd(p24, p26, p27, p28, p29, p30);
jf1vrr 0:50e7bcac5eb9 31 EthernetNetIf eth;
jf1vrr 0:50e7bcac5eb9 32 NTPClient ntp;
jf1vrr 0:50e7bcac5eb9 33 I2C i2c(p9, p10);
jf1vrr 0:50e7bcac5eb9 34 int offset_JAPAN = 32400;
jf1vrr 0:50e7bcac5eb9 35
jf1vrr 0:50e7bcac5eb9 36 char year, month, day, week;
jf1vrr 0:50e7bcac5eb9 37 char hour, minute, sec;
jf1vrr 0:50e7bcac5eb9 38 char ntp_year[3], ntp_month[3], ntp_day[3], ntp_week[4];
jf1vrr 0:50e7bcac5eb9 39 char ntp_hour[3], ntp_minute[3], ntp_sec[3];
jf1vrr 0:50e7bcac5eb9 40 char week_val;
jf1vrr 0:50e7bcac5eb9 41
jf1vrr 0:50e7bcac5eb9 42 char week_chr[7][4] = {"Sun","Mon","Tue","Wed","Thu","Fri","Sat"};
jf1vrr 0:50e7bcac5eb9 43
jf1vrr 0:50e7bcac5eb9 44 void rtc_write(char address, char value)
jf1vrr 0:50e7bcac5eb9 45 {
jf1vrr 0:50e7bcac5eb9 46 i2c.start();
jf1vrr 0:50e7bcac5eb9 47 i2c.write(RTC8564NB_ADR);
jf1vrr 0:50e7bcac5eb9 48 i2c.write(address);
jf1vrr 0:50e7bcac5eb9 49 i2c.write(value);
jf1vrr 0:50e7bcac5eb9 50 i2c.stop();
jf1vrr 0:50e7bcac5eb9 51 }
jf1vrr 0:50e7bcac5eb9 52
jf1vrr 0:50e7bcac5eb9 53 char rtc_read(char address)
jf1vrr 0:50e7bcac5eb9 54 {
jf1vrr 0:50e7bcac5eb9 55 char value;
jf1vrr 0:50e7bcac5eb9 56 i2c.start();
jf1vrr 0:50e7bcac5eb9 57 i2c.write(RTC8564NB_ADR);
jf1vrr 0:50e7bcac5eb9 58 i2c.write(address);
jf1vrr 0:50e7bcac5eb9 59 i2c.start();
jf1vrr 0:50e7bcac5eb9 60 i2c.write(RTC8564NB_ADR | _READ);
jf1vrr 0:50e7bcac5eb9 61 value = i2c.read(0);
jf1vrr 0:50e7bcac5eb9 62 i2c.stop();
jf1vrr 0:50e7bcac5eb9 63
jf1vrr 0:50e7bcac5eb9 64 return value;
jf1vrr 0:50e7bcac5eb9 65 }
jf1vrr 0:50e7bcac5eb9 66
jf1vrr 0:50e7bcac5eb9 67 int main() {
jf1vrr 0:50e7bcac5eb9 68 lcd.cls();
jf1vrr 0:50e7bcac5eb9 69 lcd.printf("RTC8564NB CLOCK" );
jf1vrr 0:50e7bcac5eb9 70 wait(2.0);
jf1vrr 0:50e7bcac5eb9 71
jf1vrr 0:50e7bcac5eb9 72 /* Set up Ethernet */
jf1vrr 0:50e7bcac5eb9 73 lcd.cls();
jf1vrr 0:50e7bcac5eb9 74 lcd.printf("Setting up Eth\n");
jf1vrr 0:50e7bcac5eb9 75 EthernetErr ethErr = eth.setup();
jf1vrr 0:50e7bcac5eb9 76 if (ethErr) {
jf1vrr 0:50e7bcac5eb9 77 lcd.cls();
jf1vrr 0:50e7bcac5eb9 78 lcd.printf("Error with Eth\nNum: %d", ethErr);
jf1vrr 0:50e7bcac5eb9 79 return -1;
jf1vrr 0:50e7bcac5eb9 80 }
jf1vrr 0:50e7bcac5eb9 81
jf1vrr 0:50e7bcac5eb9 82 /* Set up NTP */
jf1vrr 0:50e7bcac5eb9 83 lcd.printf("Setting up NTP\n");
jf1vrr 0:50e7bcac5eb9 84 Host server(IpAddr(), 123, "ntp1.jst.mfeed.ad.jp");
jf1vrr 0:50e7bcac5eb9 85 ntp.setTime(server);
jf1vrr 0:50e7bcac5eb9 86
jf1vrr 0:50e7bcac5eb9 87 time_t seconds = time(NULL)+offset_JAPAN;
jf1vrr 0:50e7bcac5eb9 88
jf1vrr 0:50e7bcac5eb9 89 lcd.cls();
jf1vrr 0:50e7bcac5eb9 90 strftime(ntp_year, 16, "%y", localtime(&seconds));
jf1vrr 0:50e7bcac5eb9 91 strftime(ntp_month, 16, "%m", localtime(&seconds));
jf1vrr 0:50e7bcac5eb9 92 strftime(ntp_day, 16, "%d", localtime(&seconds));
jf1vrr 0:50e7bcac5eb9 93 strftime(ntp_week, 16, "%a", localtime(&seconds));
jf1vrr 0:50e7bcac5eb9 94 strftime(ntp_hour, 16, "%H", localtime(&seconds));
jf1vrr 0:50e7bcac5eb9 95 strftime(ntp_minute, 16, "%M", localtime(&seconds));
jf1vrr 0:50e7bcac5eb9 96 strftime(ntp_sec, 16, "%S", localtime(&seconds));
jf1vrr 0:50e7bcac5eb9 97
jf1vrr 0:50e7bcac5eb9 98 switch (ntp_week[0]){
jf1vrr 0:50e7bcac5eb9 99 case 'S':
jf1vrr 0:50e7bcac5eb9 100 switch (ntp_week[1]) {
jf1vrr 0:50e7bcac5eb9 101 case 'u': week_val = 0x00; break;
jf1vrr 0:50e7bcac5eb9 102 case 'a': week_val = 0x06; break;
jf1vrr 0:50e7bcac5eb9 103 }
jf1vrr 0:50e7bcac5eb9 104 break;
jf1vrr 0:50e7bcac5eb9 105 case 'M': week_val = 0x01; break;
jf1vrr 0:50e7bcac5eb9 106 case 'T':
jf1vrr 0:50e7bcac5eb9 107 switch (ntp_week[1]) {
jf1vrr 0:50e7bcac5eb9 108 case 'u': week_val = 0x02; break;
jf1vrr 0:50e7bcac5eb9 109 case 'h': week_val = 0x04; break;
jf1vrr 0:50e7bcac5eb9 110 }
jf1vrr 0:50e7bcac5eb9 111 break;
jf1vrr 0:50e7bcac5eb9 112 case 'W': week_val = 0x03; break;
jf1vrr 0:50e7bcac5eb9 113 case 'F': week_val = 0x05; break;
jf1vrr 0:50e7bcac5eb9 114 }
jf1vrr 0:50e7bcac5eb9 115
jf1vrr 0:50e7bcac5eb9 116 rtc_write(CONTROL1, 0x20); //stop
jf1vrr 0:50e7bcac5eb9 117 rtc_write(CONTROL2, 0x00);
jf1vrr 0:50e7bcac5eb9 118 rtc_write(YEARS, ((ntp_year[0]-0x30)<<4)+(ntp_year[1]-0x30));
jf1vrr 0:50e7bcac5eb9 119 rtc_write(MONTHS, ((ntp_month[0]-0x30)<<4)+(ntp_month[1]-0x30));
jf1vrr 0:50e7bcac5eb9 120 rtc_write(DAYS, ((ntp_day[0]-0x30)<<4)+(ntp_day[1]-0x30));
jf1vrr 0:50e7bcac5eb9 121 rtc_write(HOURS, ((ntp_hour[0]-0x30)<<4)+(ntp_hour[1]-0x30));
jf1vrr 0:50e7bcac5eb9 122 rtc_write(MINUTES, ((ntp_minute[0]-0x30)<<4)+(ntp_minute[1]-0x30));
jf1vrr 0:50e7bcac5eb9 123 rtc_write(SECONDS, ((ntp_sec[0]-0x30)<<4)+(ntp_sec[1]-0x30));
jf1vrr 0:50e7bcac5eb9 124 rtc_write(WEEKDAYS, week_val);
jf1vrr 0:50e7bcac5eb9 125 rtc_write(CLOCKOUT_FREQ, 0x00); // 0x83 = TE on & 1Hz
jf1vrr 0:50e7bcac5eb9 126 rtc_write(TIMER_CINTROL, 0x00);
jf1vrr 0:50e7bcac5eb9 127 rtc_write(CONTROL1, 0x00); //start
jf1vrr 0:50e7bcac5eb9 128
jf1vrr 0:50e7bcac5eb9 129 while(1) {
jf1vrr 0:50e7bcac5eb9 130 year = rtc_read(YEARS);
jf1vrr 0:50e7bcac5eb9 131 month = rtc_read(MONTHS);
jf1vrr 0:50e7bcac5eb9 132 day = rtc_read(DAYS);
jf1vrr 0:50e7bcac5eb9 133 week = rtc_read(WEEKDAYS);
jf1vrr 0:50e7bcac5eb9 134 hour = rtc_read(HOURS);
jf1vrr 0:50e7bcac5eb9 135 minute = rtc_read(MINUTES);
jf1vrr 0:50e7bcac5eb9 136 sec = rtc_read(SECONDS);
jf1vrr 0:50e7bcac5eb9 137 lcd.locate(0,0);
jf1vrr 0:50e7bcac5eb9 138 lcd.printf("20%c%c/%c%c/%c%c %s",
jf1vrr 0:50e7bcac5eb9 139 ((year >> 4) & 0x03) + 0x30, (year & 0x0F) + 0x30,
jf1vrr 0:50e7bcac5eb9 140 ((month >> 4) & 0x01) + 0x30, (month & 0x0F) + 0x30,
jf1vrr 0:50e7bcac5eb9 141 ((day >> 4) & 0x03)+ 0x30, (day & 0x0F) + 0x30,
jf1vrr 0:50e7bcac5eb9 142 week_chr[week & 0x07]);
jf1vrr 0:50e7bcac5eb9 143 lcd.locate(0,1);
jf1vrr 0:50e7bcac5eb9 144 lcd.printf("%c%c:%c%c:%c%c",
jf1vrr 0:50e7bcac5eb9 145 ((hour >> 4) & 0x03) + 0x30, (hour & 0x0F) + 0x30,
jf1vrr 0:50e7bcac5eb9 146 (minute >> 4) + 0x30, (minute & 0x0F) + 0x30,
jf1vrr 0:50e7bcac5eb9 147 (sec >> 4) + 0x30, (sec & 0x0F) + 0x30 );
jf1vrr 0:50e7bcac5eb9 148 wait(1.0);
jf1vrr 0:50e7bcac5eb9 149 }
jf1vrr 0:50e7bcac5eb9 150 }