miso dengaku / RTC8564

RTC8564.cpp@0:ed1f619f1794, 2012-06-20 (annotated)

Committer:
misodengaku
Date:
Wed Jun 20 04:09:39 2012 +0000
Revision:
0:ed1f619f1794
test

Who changed what in which revision?

UserRevisionLine numberNew contents of line
misodengaku 0:ed1f619f1794 1 #include "mbed.h"
misodengaku 0:ed1f619f1794 2 #include "RTC8564.h"
misodengaku 0:ed1f619f1794 3
misodengaku 0:ed1f619f1794 4 void RTC8564::write(char address, char value)
misodengaku 0:ed1f619f1794 5 {
misodengaku 0:ed1f619f1794 6 i2c.start();
misodengaku 0:ed1f619f1794 7 i2c.write(RTC8564NB_ADR);
misodengaku 0:ed1f619f1794 8 i2c.write(address);
misodengaku 0:ed1f619f1794 9 i2c.write(value);
misodengaku 0:ed1f619f1794 10 i2c.stop();
misodengaku 0:ed1f619f1794 11 }
misodengaku 0:ed1f619f1794 12
misodengaku 0:ed1f619f1794 13 char RTC8564::read(char address)
misodengaku 0:ed1f619f1794 14 {
misodengaku 0:ed1f619f1794 15 char value;
misodengaku 0:ed1f619f1794 16 i2c.start();
misodengaku 0:ed1f619f1794 17 i2c.write(RTC8564NB_ADR);
misodengaku 0:ed1f619f1794 18 i2c.write(address);
misodengaku 0:ed1f619f1794 19 i2c.start();
misodengaku 0:ed1f619f1794 20 i2c.write(RTC8564NB_ADR | _READ);
misodengaku 0:ed1f619f1794 21 value = i2c.read(0);
misodengaku 0:ed1f619f1794 22 i2c.stop();
misodengaku 0:ed1f619f1794 23
misodengaku 0:ed1f619f1794 24 return value;
misodengaku 0:ed1f619f1794 25 }
misodengaku 0:ed1f619f1794 26
misodengaku 0:ed1f619f1794 27 void RTC8564::time_just()
misodengaku 0:ed1f619f1794 28 {
misodengaku 0:ed1f619f1794 29 char _min, _hour;
misodengaku 0:ed1f619f1794 30 _min = read(MINUTES);
misodengaku 0:ed1f619f1794 31 if (_min >= 0x30) {
misodengaku 0:ed1f619f1794 32 _hour = read(HOURS);
misodengaku 0:ed1f619f1794 33 if (_hour == 0x23)
misodengaku 0:ed1f619f1794 34 _hour = 0x00;
misodengaku 0:ed1f619f1794 35 else if ((_hour & 0x0F) == 0x09)
misodengaku 0:ed1f619f1794 36 _hour = (_hour & 0xF0) + 0x10;
misodengaku 0:ed1f619f1794 37 else
misodengaku 0:ed1f619f1794 38 _hour = _hour + 0x01;
misodengaku 0:ed1f619f1794 39 write(HOURS, _hour);
misodengaku 0:ed1f619f1794 40 }
misodengaku 0:ed1f619f1794 41 write(MINUTES, 0x00);
misodengaku 0:ed1f619f1794 42 write(SECONDS, 0x00);
misodengaku 0:ed1f619f1794 43 }
misodengaku 0:ed1f619f1794 44
misodengaku 0:ed1f619f1794 45
misodengaku 0:ed1f619f1794 46 void RTC8564::setdaytime(char y[3], char m[3], char d[3], char h[3], char min[3], char s[3], char week_val[2])
misodengaku 0:ed1f619f1794 47 {
misodengaku 0:ed1f619f1794 48 write(CONTROL1, 0x20); //stop
misodengaku 0:ed1f619f1794 49 write(CONTROL2, 0x00);
misodengaku 0:ed1f619f1794 50 write(YEARS, ((y[0]-0x30)<<4)+(y[1]-0x30));
misodengaku 0:ed1f619f1794 51 write(MONTHS, ((m[0]-0x30)<<4)+(m[1]-0x30));
misodengaku 0:ed1f619f1794 52 write(DAYS, ((d[0]-0x30)<<4)+(d[1]-0x30));
misodengaku 0:ed1f619f1794 53 write(HOURS, ((h[0]-0x30)<<4)+(h[1]-0x30));
misodengaku 0:ed1f619f1794 54 write(MINUTES, ((min[0]-0x30)<<4)+(min[1]-0x30));
misodengaku 0:ed1f619f1794 55 write(SECONDS, ((s[0]-0x30)<<4)+(s[1]-0x30));
misodengaku 0:ed1f619f1794 56 write(WEEKDAYS, week_val[0] - 0x30); //Sunday = "0", Monday = "1" ...
misodengaku 0:ed1f619f1794 57 write(CLOCKOUT_FREQ, 0x00); // 0x83 = TE on & 1Hz
misodengaku 0:ed1f619f1794 58 write(TIMER_CONTROL, 0x00);
misodengaku 0:ed1f619f1794 59 write(CONTROL1, 0x00); //start
misodengaku 0:ed1f619f1794 60 return;
misodengaku 0:ed1f619f1794 61 }