main.cpp

00001 /* I made the digital watch which set the start time in ntp. 
00002 It's same as "clock" see:[http://mbed.org/users/jf1vrr/programs/clock/lpucqk] 
00003 except that I changed from unix timezone to ntp.
00004 */
00005 #include "mbed.h"
00006 #include "TextLCD.h"
00007 #include "EthernetNetIf.h"
00008 #include "NTPClient.h"
00009 
00010 TextLCD lcd(p24, p26, p27, p28, p29, p30);
00011 EthernetNetIf eth; 
00012 NTPClient ntp;
00013 
00014 int offset_JAPAN = 32400;
00015 
00016 int main() {
00017     /* Set up Ethernet */
00018     lcd.cls();
00019     lcd.printf("Setting up Eth\n");
00020     EthernetErr ethErr = eth.setup();
00021     if (ethErr) {
00022         lcd.cls();
00023         lcd.printf("Error with Eth\nNum: %d", ethErr);
00024         return -1;
00025     }   
00026     
00027     /* Set up NTP */
00028     lcd.printf("Setting up NTP\n");
00029     Host server(IpAddr(), 123, "ntp1.jst.mfeed.ad.jp");
00030     ntp.setTime(server);
00031     
00032     lcd.cls();    
00033     while(1) {
00034         time_t seconds = time(NULL)+offset_JAPAN;
00035 
00036         lcd.locate(0,0);
00037         char day[16];
00038         strftime(day, 16, "%Y/%m/%d %a\n", localtime(&seconds));
00039         lcd.printf("%s", day);
00040         
00041         char time[16];
00042         strftime(time, 16, "%H:%M:%S\n", localtime(&seconds));
00043         lcd.locate(0,1);
00044         lcd.printf("%s", time);
00045 
00046         wait(1.0);
00047     }
00048 }