![](/media/cache/group/HIMBED0.jpg.50x50_q85.jpg)
Functions and formatted printing of time and date for RTC8563
Dependencies: mbed
I2C RTC on HIMBED
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
Terminal program
Mit einem Terminal Programm (z.B. HTERM) können die Werte von der seriellen Schnittstelle (COM-Port) angezeigt werden:
RTC8563.cpp
- Committer:
- bulmecisco
- Date:
- 2015-04-16
- Revision:
- 2:f75062350241
File content as of revision 2:f75062350241:
// // @ Project : RTC Date Time Clock // @ File Name : RTC8563.cpp // @ Date : 06.04.2015 // @ Author : Franz Pucher // @ Copyright : pe@bulme.at // #include "mbed.h" #include "const.h" #include "RTC8563.h" RTC8563::RTC8563() : i2c(p28, p27) // delete void and add call to base constructor { // Initialise I2C i2c.frequency(40000); char init1[2] = {0x6, 0x00}; char init2[2] = {0x7, 0xff}; i2c.write(0x40, init1, 2); i2c.write(0x40, init2, 2); } RTC8563::RTC8563(PinName sda, PinName scl) : i2c(sda, scl) { // Initialise I2C i2c.frequency(40000); char init1[2] = {0x6, 0x00}; char init2[2] = {0x7, 0xff}; i2c.write(0x40, init1, 2); i2c.write(0x40, init2, 2); } char RTC8563::rtc_read(char address) { char value; i2c.start(); i2c.write(RTC8563_ADR); i2c.write(address); i2c.start(); i2c.write(RTC8563_ADR | _READ); value = i2c.read(0); i2c.stop(); return value; } void RTC8563::rtc_write(char address, char value) { i2c.start(); i2c.write(RTC8563_ADR); i2c.write(address); i2c.write(value); i2c.stop(); } void RTC8563::rtc_init() { } void RTC8563::rtc_alarm() { }