![](/media/cache/profiles/f0fcf351df4eb6786e9bb6fc4e2dee02.jpg.50x50_q85.jpg)
Time adjustment and display. Adjustment via Com line and Display on LCD.
Dependencies: mbed TextLCD CheckRTC
main.cpp
- Committer:
- kenjiArai
- Date:
- 2010-03-27
- Revision:
- 0:b3d6027d4ef2
- Child:
- 1:af3fc8a8eb57
File content as of revision 0:b3d6027d4ef2:
// // RTC Test Program // Kenji Arai / JH1PJL // March 27th,2010 Started // March 27th,2010 // #include "mbed.h" #include "TextLCD.h" //#define STYLE1 #define STYLE2 Serial pc(USBTX, USBRX); DigitalOut myled1(LED1); // Assign LED1 output port TextLCD lcd(p22, p28, p27, p26, p25, p24, p23, 40, 2); // rs,rw,e,d0,d1,d2,d3,40char's x 2 lines int hex( char c ) { if( c<= '/' ) return( 0 ); if( ( c -= '0' ) <= 9 || 10 <= ( c -= 'A' - '0' - 10 ) && c <= 15 ){ return( (int)c ); } return( 0 ); } int conv( void ) { char c; int d; c = pc.getc(); pc.putc(c); d = hex(c); c = pc.getc(); pc.putc(c); d = d * 10 + hex(c); return d; } int main() { char c; char buf[40]; time_t seconds; struct tm t; lcd.cls(); lcd.locate(0, 0); lcd.locate(0, 0); // 1st line top // 1234567890123456789012345678901234567890 lcd.printf(" Waiting for time adjustment via com "); printf("\r\n"); while (1){ while (!pc.readable()){ seconds = time(NULL); printf("Current time is"); strftime(buf,40, "%I:%M:%S %p (%Y/%m/%d) ", localtime(&seconds)); printf(" = %s Is this okay? [Enter Y/y or N/n]\r", buf); } c = getchar(); if (c == 'N' || c == 'n'){ printf("\r\nPlese enter Year 20YY (only 2 digits)\r\n]"); t.tm_year = 100 + conv(); printf("\r\nPlese enter Month MM (only 2 digits)\r\n]"); t.tm_mon = conv(); printf("\r\nPlese enter Day DD (only 2 digits)\r\n]"); t.tm_mday = conv(); printf("\r\nPlese enter Hour HH (only 2 digits)\r\n]"); t.tm_hour = conv(); printf("\r\nPlese enter Miniut MM (only 2 digits)\r\n]"); t.tm_min = conv(); printf("\r\nPlese enter Second SS (only 2 digits)\r\n]"); t.tm_sec = conv(); printf("\r\n"); seconds = mktime(&t); set_time(seconds); } else { break; } } printf("\r\n Current Time -> Plese see LCD \r\n"); for(;;){ while ( seconds == time(NULL)) ; seconds = time(NULL); myled1 = !myled1; lcd.cls(); lcd.locate(0, 0); // 1st line top lcd.printf("It is %d sec since Jan.1,1970\n", seconds); lcd.locate(0, 1); // 2nd line top #ifdef STYLE1 // 27 Mar 2010 13:24:00 strftime(buf,40, "%x %X ", localtime(&seconds)); #endif #ifdef STYLE2 // 13:24:00 PM (2010/03/27) strftime(buf,40, "%I:%M:%S %p (%Y/%m/%d)", localtime(&seconds)); #endif lcd.printf("Time = %s", buf); //printf("Time = %s\r", buf); } }