M0Board_WF / Mbed 2 deprecated WF_RTC_V3

a

Dependencies:   mbed

main.cpp@0:4b2d2467092e, 2015-01-28 (annotated)

Committer:
bulmenwt
Date:
Wed Jan 28 07:54:21 2015 +0000
Revision:
0:4b2d2467092e
a

Who changed what in which revision?

UserRevisionLine numberNew contents of line
bulmenwt 0:4b2d2467092e 1
bulmenwt 0:4b2d2467092e 2
bulmenwt 0:4b2d2467092e 3 /*This is the clock which used highly quality RTC module RT8564NB.
bulmenwt 0:4b2d2467092e 4 This module is I2C controllable. At the time of poweron/reset, the start
bulmenwt 0:4b2d2467092e 5 time received from ntp server.
bulmenwt 0:4b2d2467092e 6 */
bulmenwt 0:4b2d2467092e 7 #include "mbed.h"
bulmenwt 0:4b2d2467092e 8
bulmenwt 0:4b2d2467092e 9
bulmenwt 0:4b2d2467092e 10
bulmenwt 0:4b2d2467092e 11 #define RTC8564NB_ADR 0xA2
bulmenwt 0:4b2d2467092e 12
bulmenwt 0:4b2d2467092e 13 #define CONTROL1 0x00
bulmenwt 0:4b2d2467092e 14 #define CONTROL2 0x01
bulmenwt 0:4b2d2467092e 15 #define SECONDS 0x02
bulmenwt 0:4b2d2467092e 16 #define MINUTES 0x03
bulmenwt 0:4b2d2467092e 17 #define HOURS 0x04
bulmenwt 0:4b2d2467092e 18 #define DAYS 0x05
bulmenwt 0:4b2d2467092e 19 #define WEEKDAYS 0x06
bulmenwt 0:4b2d2467092e 20 #define MONTHS 0x07
bulmenwt 0:4b2d2467092e 21 #define YEARS 0x08
bulmenwt 0:4b2d2467092e 22 #define MINUTE_ALARM 0x09
bulmenwt 0:4b2d2467092e 23 #define HOUR_ALARM 0x0A
bulmenwt 0:4b2d2467092e 24 #define DAY_ALARM 0x0B
bulmenwt 0:4b2d2467092e 25 #define WEEKDAY_ALARM 0x0C
bulmenwt 0:4b2d2467092e 26 #define CLOCKOUT_FREQ 0x0D
bulmenwt 0:4b2d2467092e 27 #define TIMER_CINTROL 0x0E
bulmenwt 0:4b2d2467092e 28 #define TIMER 0x0F
bulmenwt 0:4b2d2467092e 29 #define _READ 0x01
bulmenwt 0:4b2d2467092e 30
bulmenwt 0:4b2d2467092e 31 Serial pc(USBTX, USBRX); // tx, rx
bulmenwt 0:4b2d2467092e 32
bulmenwt 0:4b2d2467092e 33
bulmenwt 0:4b2d2467092e 34 I2C i2c(p28, p27);
bulmenwt 0:4b2d2467092e 35 int offset_JAPAN = 32400;
bulmenwt 0:4b2d2467092e 36
bulmenwt 0:4b2d2467092e 37 char year, month, day, week;
bulmenwt 0:4b2d2467092e 38 char hour, minute, sec;
bulmenwt 0:4b2d2467092e 39 char ntp_year[3], ntp_month[3], ntp_day[3], ntp_week[4];
bulmenwt 0:4b2d2467092e 40 char ntp_hour[3], ntp_minute[3], ntp_sec[3];
bulmenwt 0:4b2d2467092e 41 char week_val;
bulmenwt 0:4b2d2467092e 42
bulmenwt 0:4b2d2467092e 43 char week_chr[7][4] = {"Mon","Tue","Wed","Thu","Fri","Sat","Sun"};
bulmenwt 0:4b2d2467092e 44
bulmenwt 0:4b2d2467092e 45 void rtc_write(char address, char value)
bulmenwt 0:4b2d2467092e 46 {
bulmenwt 0:4b2d2467092e 47 i2c.start();
bulmenwt 0:4b2d2467092e 48 i2c.write(RTC8564NB_ADR);
bulmenwt 0:4b2d2467092e 49 i2c.write(address);
bulmenwt 0:4b2d2467092e 50 i2c.write(value);
bulmenwt 0:4b2d2467092e 51 i2c.stop();
bulmenwt 0:4b2d2467092e 52 }
bulmenwt 0:4b2d2467092e 53
bulmenwt 0:4b2d2467092e 54 char rtc_read(char address)
bulmenwt 0:4b2d2467092e 55 {
bulmenwt 0:4b2d2467092e 56 char value;
bulmenwt 0:4b2d2467092e 57 i2c.start();
bulmenwt 0:4b2d2467092e 58 i2c.write(RTC8564NB_ADR);
bulmenwt 0:4b2d2467092e 59 i2c.write(address);
bulmenwt 0:4b2d2467092e 60 i2c.start();
bulmenwt 0:4b2d2467092e 61 i2c.write(RTC8564NB_ADR | _READ);
bulmenwt 0:4b2d2467092e 62 value = i2c.read(0);
bulmenwt 0:4b2d2467092e 63 i2c.stop();
bulmenwt 0:4b2d2467092e 64
bulmenwt 0:4b2d2467092e 65 return value;
bulmenwt 0:4b2d2467092e 66 }
bulmenwt 0:4b2d2467092e 67
bulmenwt 0:4b2d2467092e 68 int main() {
bulmenwt 0:4b2d2467092e 69
bulmenwt 0:4b2d2467092e 70 pc.printf("RTC8564NB CLOCK" );
bulmenwt 0:4b2d2467092e 71 wait(2.0);
bulmenwt 0:4b2d2467092e 72
bulmenwt 0:4b2d2467092e 73
bulmenwt 0:4b2d2467092e 74
bulmenwt 0:4b2d2467092e 75 /* Set up NTP */
bulmenwt 0:4b2d2467092e 76 pc.printf("Setting up NTP\n");
bulmenwt 0:4b2d2467092e 77
bulmenwt 0:4b2d2467092e 78
bulmenwt 0:4b2d2467092e 79 //time_t seconds = time(NULL)+offset_JAPAN;
bulmenwt 0:4b2d2467092e 80
bulmenwt 0:4b2d2467092e 81
bulmenwt 0:4b2d2467092e 82
bulmenwt 0:4b2d2467092e 83 /*
bulmenwt 0:4b2d2467092e 84 strftime(ntp_year, 16, "%y", localtime(&seconds));
bulmenwt 0:4b2d2467092e 85 strftime(ntp_month, 16, "%m", localtime(&seconds));
bulmenwt 0:4b2d2467092e 86 strftime(ntp_day, 16, "%d", localtime(&seconds));
bulmenwt 0:4b2d2467092e 87 strftime(ntp_week, 16, "%a", localtime(&seconds));
bulmenwt 0:4b2d2467092e 88 strftime(ntp_hour, 16, "%H", localtime(&seconds));
bulmenwt 0:4b2d2467092e 89 strftime(ntp_minute, 16, "%M", localtime(&seconds));
bulmenwt 0:4b2d2467092e 90 strftime(ntp_sec, 16, "%S", localtime(&seconds));
bulmenwt 0:4b2d2467092e 91
bulmenwt 0:4b2d2467092e 92 switch (ntp_week[0]){
bulmenwt 0:4b2d2467092e 93 case 'S':
bulmenwt 0:4b2d2467092e 94 switch (ntp_week[1]) {
bulmenwt 0:4b2d2467092e 95 case 'u': week_val = 0x00; break;
bulmenwt 0:4b2d2467092e 96 case 'a': week_val = 0x06; break;
bulmenwt 0:4b2d2467092e 97 }
bulmenwt 0:4b2d2467092e 98 break;
bulmenwt 0:4b2d2467092e 99 case 'M': week_val = 0x01; break;
bulmenwt 0:4b2d2467092e 100 case 'T':
bulmenwt 0:4b2d2467092e 101 switch (ntp_week[1]) {
bulmenwt 0:4b2d2467092e 102 case 'u': week_val = 0x02; break;
bulmenwt 0:4b2d2467092e 103 case 'h': week_val = 0x04; break;
bulmenwt 0:4b2d2467092e 104 }
bulmenwt 0:4b2d2467092e 105 break;
bulmenwt 0:4b2d2467092e 106 case 'W': week_val = 0x03; break;
bulmenwt 0:4b2d2467092e 107 case 'F': week_val = 0x05; break;
bulmenwt 0:4b2d2467092e 108 }
bulmenwt 0:4b2d2467092e 109
bulmenwt 0:4b2d2467092e 110 */
bulmenwt 0:4b2d2467092e 111
bulmenwt 0:4b2d2467092e 112 week_val = 0x04;
bulmenwt 0:4b2d2467092e 113
bulmenwt 0:4b2d2467092e 114 //
bulmenwt 0:4b2d2467092e 115
bulmenwt 0:4b2d2467092e 116 rtc_write(CONTROL1, 0x20); //stop
bulmenwt 0:4b2d2467092e 117 rtc_write(CONTROL2, 0x00);
bulmenwt 0:4b2d2467092e 118 rtc_write(YEARS, (0x15));
bulmenwt 0:4b2d2467092e 119 rtc_write(MONTHS, (0x01));
bulmenwt 0:4b2d2467092e 120 rtc_write(DAYS, (0x23));
bulmenwt 0:4b2d2467092e 121 rtc_write(HOURS, (0x17));
bulmenwt 0:4b2d2467092e 122 rtc_write(MINUTES, (0x35));
bulmenwt 0:4b2d2467092e 123 rtc_write(SECONDS, (0x00));
bulmenwt 0:4b2d2467092e 124 rtc_write(WEEKDAYS, week_val);
bulmenwt 0:4b2d2467092e 125 rtc_write(CLOCKOUT_FREQ, 0x00); // 0x83 = TE on & 1Hz
bulmenwt 0:4b2d2467092e 126 rtc_write(TIMER_CINTROL, 0x00);
bulmenwt 0:4b2d2467092e 127 rtc_write(CONTROL1, 0x00); //start
bulmenwt 0:4b2d2467092e 128
bulmenwt 0:4b2d2467092e 129 while(1) {
bulmenwt 0:4b2d2467092e 130 year = rtc_read(YEARS);
bulmenwt 0:4b2d2467092e 131 month = rtc_read(MONTHS);
bulmenwt 0:4b2d2467092e 132 day = rtc_read(DAYS);
bulmenwt 0:4b2d2467092e 133 week = rtc_read(WEEKDAYS);
bulmenwt 0:4b2d2467092e 134 hour = rtc_read(HOURS);
bulmenwt 0:4b2d2467092e 135 minute = rtc_read(MINUTES);
bulmenwt 0:4b2d2467092e 136 sec = rtc_read(SECONDS);
bulmenwt 0:4b2d2467092e 137 /*
bulmenwt 0:4b2d2467092e 138 pc.printf("20%c%c/%c%c/%c%c %s\n",
bulmenwt 0:4b2d2467092e 139 ((year >> 4) & 0x03) + 0x30, (year & 0x0F) + 0x30,
bulmenwt 0:4b2d2467092e 140 ((month >> 4) & 0x01) + 0x30, (month & 0x0F) + 0x30,
bulmenwt 0:4b2d2467092e 141 ((day >> 4) & 0x03)+ 0x30, (day & 0x0F) + 0x30,
bulmenwt 0:4b2d2467092e 142 week_chr[week & 0x07]);
bulmenwt 0:4b2d2467092e 143
bulmenwt 0:4b2d2467092e 144
bulmenwt 0:4b2d2467092e 145 pc.printf("%c%c:%c%c:%c%c\n",
bulmenwt 0:4b2d2467092e 146 ((hour >> 4) & 0x03) + 0x30, (hour & 0x0F) + 0x30,
bulmenwt 0:4b2d2467092e 147 (minute >> 4) + 0x30, (minute & 0x0F) + 0x30,
bulmenwt 0:4b2d2467092e 148 (sec >> 4) + 0x30, (sec & 0x0F) + 0x30 );
bulmenwt 0:4b2d2467092e 149
bulmenwt 0:4b2d2467092e 150
bulmenwt 0:4b2d2467092e 151 */
bulmenwt 0:4b2d2467092e 152
bulmenwt 0:4b2d2467092e 153 pc.printf("20%c%c/%c%c/%c%c %s\n",
bulmenwt 0:4b2d2467092e 154 ((year >> 4) & 0x03) + 0x30, (year & 0x0F) + 0x30,
bulmenwt 0:4b2d2467092e 155 ((month >> 4) & 0x01) + 0x30, (month & 0x0F) + 0x30,
bulmenwt 0:4b2d2467092e 156 ((day >> 4) & 0x03)+ 0x30, (day & 0x0F) + 0x30,
bulmenwt 0:4b2d2467092e 157 week_chr[week & 0x07]);
bulmenwt 0:4b2d2467092e 158
bulmenwt 0:4b2d2467092e 159
bulmenwt 0:4b2d2467092e 160 pc.printf("%c%c:%c%c:%c%c\n",
bulmenwt 0:4b2d2467092e 161 ((hour >> 4) & 0x03) + 0x30, (hour & 0x0F) + 0x30,
bulmenwt 0:4b2d2467092e 162 (minute >> 4) + 0x30, (minute & 0x0F) + 0x30,
bulmenwt 0:4b2d2467092e 163 (sec >> 4) + 0x30, (sec & 0x0F) + 0x30 );
bulmenwt 0:4b2d2467092e 164
bulmenwt 0:4b2d2467092e 165 wait(1.0);
bulmenwt 0:4b2d2467092e 166 }
bulmenwt 0:4b2d2467092e 167 }
bulmenwt 0:4b2d2467092e 168
bulmenwt 0:4b2d2467092e 169