Diff: main.cpp

Revision:

0:658f351580f0

Child:

1:86dc8dfe6a20

diff -r 000000000000 -r 658f351580f0 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Dec 09 07:23:50 2014 +0000
@@ -0,0 +1,77 @@
+/*
+ *  A sample code for PCF2127 library
+ *
+ *  @author     Akifumi (Tedd) OKANO, NXP Semiconductors
+ *  @version    1.6
+ *  @date       09-Dec-2014
+ *
+ *  PCF2127 is a "real time clock (RTC)" module which is including a Xtal and TCXO
+ *  http://www.nxp.com/products/interface_and_connectivity/real_time_clocks/rtcs_with_temp_compensation/series/PCF2127.html
+ *
+ *  RTC initializing part is ported from..
+ *    http://mbed.org/users/roen/notebook/real-time/
+ *
+ *  This code is refined version of..
+ *    http://developer.mbed.org/users/okano/code/NXP_PCF2127A/
+ */
+ */
+
+#include "mbed.h"
+#include "PCF2127.h"
+
+PCF2127 rtc( p28, p27 );
+
+void    show_time( void );
+void    set_time( void );
+
+int main()
+{
+    printf( "PCF2127 demo started.\r\n" );
+
+    if ( rtc.is_init_required() ) {
+        set_time();
+    }
+
+    while ( 1 ) {
+        show_time();
+        wait( 0.25 );
+    }
+}
+
+void show_time( void )
+{
+    struct tm   dt, *dtp;
+    time_t      t;
+    char        s[ 30 ];
+    
+    dtp     = &dt;
+
+    rtc.clear_intr();
+
+    //  get time information from PCF2127
+    if ( PCF2127::TIME_FUNC_ERROR == (t   = rtc.time( NULL )) )
+    {
+        printf( "error at reading time\r\n" );
+        return;
+    }
+    
+    dtp     = localtime( &t );
+
+    //  print time and date on terminal
+    strftime( s, 30, "%H:%M:%S, %Y/%b/%d %a", dtp );
+    printf( "%s\r\n", s );
+}
+
+void set_time( void )
+{
+#define MAX_CHAR_LENGTH 21
+    char    s[ MAX_CHAR_LENGTH ];
+
+    printf( "Enter current date and time:\r\n" );
+    printf( "YYYY MM DD HH MM SS[enter]\r\n" );
+
+    fgets( s, MAX_CHAR_LENGTH, stdin );
+    printf( "user input: \"%s\"\r\n", s );
+
+    rtc.set_time( s );
+}