HIMBED_3AHELI / Mbed 2 deprecated rtc_func

Functions and formatted printing of time and date for RTC8563

Dependencies:   mbed

Inhalt

I2C RTC on HIMBED

/media/uploads/bulmecisco/rtc.jpg

Definition der benannten Konstanten für die Register des PCF8563 (Tabelle 4)
Praeprozessor-Direktiven #define werden durch benannte Konstante ersetzt

const.h

/***********************************
name:   const.h    Version: 0.1
author: PE HTL BULME
email:  pe@bulme.at
description:
  Named constants definitions for registers 
  PCF8563 RTC on HIMBED M0 - LPC11U24 
***********************************/

#ifndef CONST_H
#define CONST_H

// Address of RTC
const int RTC8563_ADR = 0xA2;
// Control and status
const int CONTROL1 = 0x00;
const int CONTROL2 = 0x01;
// Time and date
const int SECONDS = 0x02;   
const int MINUTES = 0x03;
const int HOURS = 0x04;
const int DAYS = 0x05;
const int WEEKDAYS = 0x06;
const int MONTHS = 0x07;
const int YEARS = 0x08;
// Alarm
const int MINUTE_ALARM = 0x09;
const int HOUR_ALARM = 0x0A;
const int DAY_ALARM = 0x0B;
const int WEEKDAY_ALARM = 0x0C;
// Clock and timer
const int CLOCKOUT_FREQ = 0x0D;
const int TIMER_CINTROL = 0x0E;
const int _READ = 0x01;

#endif

Register organisation

/media/uploads/bulmecisco/register.jpg

Terminal program

Mit einem Terminal Programm (z.B. HTERM) können die Werte von der seriellen Schnittstelle (COM-Port) angezeigt werden:

/media/uploads/bulmecisco/hterm.jpg

Next

Diff: main.cpp

Revision:
1:554eb6675279
Parent:
0:32ae5fd83722
Child:
2:f75062350241
--- a/main.cpp	Sun Apr 05 09:55:01 2015 +0000
+++ b/main.cpp	Wed Apr 15 07:15:25 2015 +0000
@@ -34,6 +34,11 @@
 Serial pc(USBTX, USBRX);
 I2C i2c(p28, p27);
 
+InterruptIn alarm(P1_28);
+
+DigitalOut myled1(LED1); 
+DigitalOut myled2(LED2);
+
 // Function prototyping
 void printTime();
 void rtc_init();
@@ -117,10 +122,38 @@
     i2c.stop();
 }
 
+void rtc_alarm()
+{
+    pc.printf("Setting up RTC\n");
+    // Formatierung
+    // 2015/01/24
+    // 17:02:00 MON
+
+    // week_val = 0x05; // SAT
+    rtc_write(CONTROL1, 0x20); //stop
+    rtc_write(CONTROL2, 0x02); // alarm AF alarm flag bit
+    rtc_write(DAY_ALARM, (0x80) );
+    rtc_write(HOUR_ALARM, (0x97));
+    rtc_write(MINUTE_ALARM, (0x02));
+    rtc_write(WEEKDAY_ALARM, (0x80));
+    rtc_write(CONTROL1, 0x00); //start
+}
+//************************************
+void push1() // Interruptfunktion alarm
+{
+    pc.printf("********\n" );
+    pc.printf("ALARM\n" );
+    pc.printf("********\n" );
+    myled1= 1;
+}
+
+
 // main program
 int main()
 {
     rtc_init();
+    alarm.fall(&push1);
+    rtc_alarm();
     while(1) {
         printTime();
         wait(1);