Errol Burrow
Simple Serial Hello World with RTC clock sync to PC capability
Revision 0:ac9d7acfd1f5, committed 2010-04-06
- Comitter:
- eburrow
- Date:
- Tue Apr 06 20:08:35 2010 +0000
- Commit message:
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
| mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
diff -r 000000000000 -r ac9d7acfd1f5 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Tue Apr 06 20:08:35 2010 +0000
@@ -0,0 +1,64 @@
+#include "mbed.h"
+
+DigitalOut myled(LED1);
+
+Serial pc(USBTX,USBRX);
+
+
+bool clock_set = 0;
+time_t read_time = 0;
+time_t seconds;
+
+int main() {
+
+ pc.baud(9600);
+
+ while (1) {
+
+ // have we set our clock yet?
+ if (clock_set == 0) {
+ // try to request the time
+ pc.printf("epoch\n\r");
+ // wait a bit
+ wait(0.1);
+ // try to read a long int
+ if (pc.readable()) {
+ scanf("%d",&read_time);
+ if (read_time > 0) {
+ // set the time
+ pc.printf("time value read: %u\r\n",read_time);
+ set_time(read_time);
+ wait(0.2);
+ clock_set = 1;
+ } else {
+ // delay longer and try again
+ wait(4);
+ }
+ } else{
+ wait (0.1);
+ }
+ } else {
+ // display time
+ //seconds = time(NULL);
+ //struct tm *t = localtime(&seconds);
+ //pc.printf("%04d-%02d-%02d %02d:%02d:%02d UTC\r\n",(t->tm_year+1900),(t->tm_mon+1),t->tm_mday,t->tm_hour,t->tm_min,t->tm_sec);
+ // delay 5 seconds
+ //wait(1);
+ ;;
+ }
+
+ myled = !myled;
+ //wait(0.2);
+ //pc.printf("Hello World\r\n");
+
+ seconds = time(NULL);
+ struct tm *t = localtime(&seconds);
+ pc.printf("%04d-%02d-%02d %02d:%02d:%02d UTC\r\n",(t->tm_year+1900),(t->tm_mon+1),t->tm_mday,t->tm_hour,t->tm_min,t->tm_sec);
+ wait(1);
+
+
+ }
+
+}
+
+
diff -r 000000000000 -r ac9d7acfd1f5 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Tue Apr 06 20:08:35 2010 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/49a220cc26e0