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Dependencies:   C12832 PCF2127 mbed

main.cpp@0:8de826ed7578, 2014-12-04 (annotated)

Committer:
nxp_ip
Date:
Thu Dec 04 04:59:20 2014 +0000
Revision:
0:8de826ed7578
initial version

Who changed what in which revision?

UserRevisionLine numberNew contents of line
nxp_ip 0:8de826ed7578 1 /*
nxp_ip 0:8de826ed7578 2 * A sample code for PCF2127 library
nxp_ip 0:8de826ed7578 3 *
nxp_ip 0:8de826ed7578 4 * @author Akifumi (Tedd) OKANO, NXP Semiconductors
nxp_ip 0:8de826ed7578 5 * @version 1.5
nxp_ip 0:8de826ed7578 6 * @date 04-Dec-2014
nxp_ip 0:8de826ed7578 7 *
nxp_ip 0:8de826ed7578 8 * PCF2127 is a "real time clock (RTC)" module which is including a Xtal and TCXO
nxp_ip 0:8de826ed7578 9 * http://www.nxp.com/products/interface_and_connectivity/real_time_clocks/rtcs_with_temp_compensation/series/PCF2127.html
nxp_ip 0:8de826ed7578 10 *
nxp_ip 0:8de826ed7578 11 * RTC initializing part is ported from..
nxp_ip 0:8de826ed7578 12 * http://mbed.org/users/roen/notebook/real-time/
nxp_ip 0:8de826ed7578 13 *
nxp_ip 0:8de826ed7578 14 * This code is refined version of..
nxp_ip 0:8de826ed7578 15 * http://developer.mbed.org/users/okano/code/NXP_PCF2127A/
nxp_ip 0:8de826ed7578 16 */
nxp_ip 0:8de826ed7578 17
nxp_ip 0:8de826ed7578 18 #include "mbed.h"
nxp_ip 0:8de826ed7578 19 #include "C12832.h"
nxp_ip 0:8de826ed7578 20 #include "PCF2127.h"
nxp_ip 0:8de826ed7578 21
nxp_ip 0:8de826ed7578 22 C12832 lcd( p5, p7, p6, p8, p11 );
nxp_ip 0:8de826ed7578 23 PCF2127 rtc( p28, p27 );
nxp_ip 0:8de826ed7578 24
nxp_ip 0:8de826ed7578 25 void show_time( void );
nxp_ip 0:8de826ed7578 26 void set_time( void );
nxp_ip 0:8de826ed7578 27
nxp_ip 0:8de826ed7578 28 int main()
nxp_ip 0:8de826ed7578 29 {
nxp_ip 0:8de826ed7578 30 printf( "PCF2127 demo started.\r\n" );
nxp_ip 0:8de826ed7578 31
nxp_ip 0:8de826ed7578 32 if ( rtc.is_init_required() ) {
nxp_ip 0:8de826ed7578 33 lcd.locate( 0, 0 );
nxp_ip 0:8de826ed7578 34 lcd.printf( "please set time on terminal" );
nxp_ip 0:8de826ed7578 35
nxp_ip 0:8de826ed7578 36 set_time();
nxp_ip 0:8de826ed7578 37
nxp_ip 0:8de826ed7578 38 lcd.cls();
nxp_ip 0:8de826ed7578 39 }
nxp_ip 0:8de826ed7578 40
nxp_ip 0:8de826ed7578 41 lcd.locate( 0,20 );
nxp_ip 0:8de826ed7578 42 lcd.printf( "PCF2127 demo" );
nxp_ip 0:8de826ed7578 43
nxp_ip 0:8de826ed7578 44 while ( 1 ) {
nxp_ip 0:8de826ed7578 45 show_time();
nxp_ip 0:8de826ed7578 46 wait( 0.1 );
nxp_ip 0:8de826ed7578 47 }
nxp_ip 0:8de826ed7578 48 }
nxp_ip 0:8de826ed7578 49
nxp_ip 0:8de826ed7578 50 void show_time( void )
nxp_ip 0:8de826ed7578 51 {
nxp_ip 0:8de826ed7578 52 struct tm dt, *dtp;
nxp_ip 0:8de826ed7578 53 time_t t;
nxp_ip 0:8de826ed7578 54 char s[ 30 ];
nxp_ip 0:8de826ed7578 55 dtp = &dt;
nxp_ip 0:8de826ed7578 56
nxp_ip 0:8de826ed7578 57 rtc.clear_intr();
nxp_ip 0:8de826ed7578 58
nxp_ip 0:8de826ed7578 59 // get time information from PCF2127
nxp_ip 0:8de826ed7578 60 t = rtc.time( NULL );
nxp_ip 0:8de826ed7578 61 dtp = localtime( &t );
nxp_ip 0:8de826ed7578 62
nxp_ip 0:8de826ed7578 63 // print time and date on terminal
nxp_ip 0:8de826ed7578 64 strftime( s, 30, "%H:%M:%S, %Y/%b/%d %a", dtp );
nxp_ip 0:8de826ed7578 65 printf( "%s\r\n", s );
nxp_ip 0:8de826ed7578 66
nxp_ip 0:8de826ed7578 67 // print time on LCD screen
nxp_ip 0:8de826ed7578 68 strftime( s, 20, "%H:%M:%S PCF2127", dtp );
nxp_ip 0:8de826ed7578 69 lcd.locate( 0, 0 );
nxp_ip 0:8de826ed7578 70 lcd.printf( "%s", s );
nxp_ip 0:8de826ed7578 71
nxp_ip 0:8de826ed7578 72 // print date on LCD screen
nxp_ip 0:8de826ed7578 73 strftime( s, 20, "%Y/%b/%d(%a)", dtp );
nxp_ip 0:8de826ed7578 74 lcd.locate( 0, 10 );
nxp_ip 0:8de826ed7578 75 lcd.printf( "%s", s );
nxp_ip 0:8de826ed7578 76 }
nxp_ip 0:8de826ed7578 77
nxp_ip 0:8de826ed7578 78 void set_time( void )
nxp_ip 0:8de826ed7578 79 {
nxp_ip 0:8de826ed7578 80 #define MAX_CHAR_LENGTH 21
nxp_ip 0:8de826ed7578 81 char s[ MAX_CHAR_LENGTH ];
nxp_ip 0:8de826ed7578 82
nxp_ip 0:8de826ed7578 83 printf( "Enter current date and time:\r\n" );
nxp_ip 0:8de826ed7578 84 printf( "YYYY MM DD HH MM SS[enter]\r\n" );
nxp_ip 0:8de826ed7578 85
nxp_ip 0:8de826ed7578 86 fgets( s, MAX_CHAR_LENGTH, stdin );
nxp_ip 0:8de826ed7578 87 printf( "user input: \"%s\"\r\n", s );
nxp_ip 0:8de826ed7578 88
nxp_ip 0:8de826ed7578 89 rtc.set_time( s );
nxp_ip 0:8de826ed7578 90 }
nxp_ip 0:8de826ed7578 91