Revision 0:bfb6e89e28ae, committed 2012-06-19

Comitter:

misodengaku

Date:

Tue Jun 19 15:52:45 2012 +0000

Commit message:

Changed in this revision

diff -r 000000000000 -r bfb6e89e28ae RTC8564.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/RTC8564.cpp	Tue Jun 19 15:52:45 2012 +0000
@@ -0,0 +1,63 @@
+#include "mbed.h"
+#include "RTC8564.h"
+
+I2C i2c(p9, p10);
+
+void rtc_write(char address, char value)
+{
+    i2c.start();
+    i2c.write(RTC8564NB_ADR);
+    i2c.write(address);
+    i2c.write(value);
+    i2c.stop();
+}
+
+char rtc_read(char address)
+{
+    char value;
+    i2c.start();
+    i2c.write(RTC8564NB_ADR);
+    i2c.write(address);
+    i2c.start();
+    i2c.write(RTC8564NB_ADR | _READ);
+    value = i2c.read(0);
+    i2c.stop();
+    
+    return value;
+}
+
+void time_just()
+{
+    char _min, _hour;
+    _min = rtc_read(MINUTES);
+    if (_min >= 0x30) { 
+            _hour = rtc_read(HOURS);
+            if (_hour == 0x23)
+                _hour = 0x00;
+            else if ((_hour & 0x0F) == 0x09)
+                _hour = (_hour & 0xF0) + 0x10;
+            else
+                _hour = _hour + 0x01;
+            rtc_write(HOURS, _hour);
+    }
+    rtc_write(MINUTES, 0x00);
+    rtc_write(SECONDS, 0x00);
+}
+
+
+void rtc_setdaytime(char y[3], char m[3], char d[3], char h[3], char min[3], char s[3], char week_val[2])
+{
+    rtc_write(CONTROL1, 0x20); //stop
+    rtc_write(CONTROL2, 0x00);
+    rtc_write(YEARS, ((y[0]-0x30)<<4)+(y[1]-0x30)); 
+    rtc_write(MONTHS, ((m[0]-0x30)<<4)+(m[1]-0x30));
+    rtc_write(DAYS, ((d[0]-0x30)<<4)+(d[1]-0x30));
+    rtc_write(HOURS, ((h[0]-0x30)<<4)+(h[1]-0x30));
+    rtc_write(MINUTES, ((min[0]-0x30)<<4)+(min[1]-0x30));
+    rtc_write(SECONDS, ((s[0]-0x30)<<4)+(s[1]-0x30));
+    rtc_write(WEEKDAYS, week_val[0] - 0x30); //Sunday = "0", Monday = "1" ...
+    rtc_write(CLOCKOUT_FREQ, 0x00); // 0x83 = TE on & 1Hz
+    rtc_write(TIMER_CONTROL, 0x00);
+    rtc_write(CONTROL1, 0x00); //start
+    return;
+}
\ No newline at end of file

diff -r 000000000000 -r bfb6e89e28ae RTC8564.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/RTC8564.h	Tue Jun 19 15:52:45 2012 +0000
@@ -0,0 +1,25 @@
+#define RTC8564NB_ADR 0xA2
+
+#define CONTROL1 0x00
+#define CONTROL2 0x01
+#define SECONDS 0x02
+#define MINUTES 0x03
+#define HOURS 0x04
+#define DAYS 0x05
+#define WEEKDAYS 0x06
+#define MONTHS 0x07
+#define YEARS 0x08
+#define MINUTE_ALARM 0x09
+#define HOUR_ALARM 0x0A
+#define DAY_ALARM 0x0B
+#define WEEKDAY_ALARM 0x0C
+#define CLOCKOUT_FREQ 0x0D
+#define TIMER_CONTROL 0x0E
+#define TIMER 0x0F
+#define _READ 0x01
+
+
+void rtc_write(char address, char value);
+char rtc_read(char address);
+void time_just();
+void rtc_setdaytime(char y[3], char m[3], char d[3], char h[3], char min[3], char s[3], char week_val[2]);
\ No newline at end of file

diff -r 000000000000 -r bfb6e89e28ae main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Jun 19 15:52:45 2012 +0000
@@ -0,0 +1,38 @@
+//Based on http://mbed.org/users/jf1vrr/programs/RTC8564NB_Clock/lqbcpu
+
+#include "mbed.h"
+#include "RTC8564.h"
+
+Serial pc(USBTX, USBRX);
+
+char year, month, day, week;
+char hour, minute, sec;
+
+char week_chr[7][4] = {"Sun","Mon","Tue","Wed","Thu","Fri","Sat"};
+
+
+int main() {
+    //2012.06.20 00:30:00 Wed
+    rtc_setdaytime("12", "06", "20", "00", "30", "00", "3");
+    
+    while(1) { 
+        year = rtc_read(YEARS);
+        month = rtc_read(MONTHS);
+        day = rtc_read(DAYS);
+        week = rtc_read(WEEKDAYS);
+        hour = rtc_read(HOURS);
+        minute = rtc_read(MINUTES);
+        sec = rtc_read(SECONDS);
+        pc.printf("20%c%c/%c%c/%c%c %s\n",
+            ((year >> 4) & 0x03) + 0x30, (year & 0x0F) + 0x30, 
+                ((month >> 4) & 0x01) + 0x30, (month & 0x0F) + 0x30, 
+                    ((day >> 4) & 0x03)+ 0x30, (day & 0x0F) + 0x30, 
+                        week_chr[week & 0x07]);
+        pc.printf("%c%c:%c%c:%c%c\n",
+            ((hour >> 4) & 0x03) + 0x30, (hour & 0x0F) + 0x30, 
+                (minute >> 4) + 0x30, (minute & 0x0F) + 0x30, 
+                    (sec >> 4) + 0x30, (sec & 0x0F) + 0x30 );
+        
+        wait(0.1);
+    }
+}

diff -r 000000000000 -r bfb6e89e28ae mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Tue Jun 19 15:52:45 2012 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/63bcd7ba4912