jim hamblen
Clock display on app board LCD is set using an NTP network time server. DHCP service must be enabled for mbed to get an IP address. A network cable is needed.
Dependencies: C12832_lcd EthernetInterface NTPClient mbed-rtos mbed
Diff: main.cpp
- Revision:
- 0:9653261dbcda
- Child:
- 1:9095ffb76813
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Oct 01 19:50:14 2013 +0000
@@ -0,0 +1,44 @@
+#include "mbed.h"
+#include "EthernetInterface.h"
+#include "NTPClient.h"
+#include "C12832_lcd.h"
+
+C12832_LCD lcd; //Graphics LCD
+EthernetInterface eth;
+NTPClient ntp;
+
+int main()
+{
+ eth.init(); //Use DHCP
+ wait(2);
+ lcd.cls();
+ lcd.printf("Getting IP Address\r\n");
+ if(eth.connect(60000)!=0) {
+ lcd.printf("DHCP error - No IP");
+ wait(10);
+ } else {
+ lcd.printf("IP is %s\n", eth.getIPAddress());
+ wait(2);
+ }
+ lcd.cls();
+ lcd.printf("Trying to update time...\r\n");
+ if (ntp.setTime("ca.pool.ntp.org") == 0) {
+ lcd.printf("Set time successfully\r\n");
+ while(1) {
+ lcd.cls();
+ lcd.locate(0,0);
+ time_t ctTime;
+ ctTime = time(NULL);
+ lcd.printf("%s\r\n", ctime(&ctTime));
+ lcd.printf("Current Time (UTC)");
+ wait(1);
+ }
+ } else {
+ lcd.printf("NTP Error\r\n");
+ }
+
+ eth.disconnect();
+
+ while(1) {
+ }
+}