Time adjustment and display. Adjustment via Com line and Display on LCD.
Dependencies: mbed TextLCD CheckRTC
main.cpp
- Committer:
- kenjiArai
- Date:
- 2014-10-03
- Revision:
- 1:af3fc8a8eb57
- Parent:
- 0:b3d6027d4ef2
- Child:
- 2:0e3642d50dcc
File content as of revision 1:af3fc8a8eb57:
/* * mbed Application program * * Copyright (c) 2010-2014 Kenji Arai / JH1PJL * http://www.page.sannet.ne.jp/kenjia/index.html * http://mbed.org/users/kenjiArai/ * Created: March 27th, 2010 * Revised: October 3rd, 2014 * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE * AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */ // Include --------------------------------------------------------------------------------------- #include "mbed.h" #include "TextLCD.h" // Object ---------------------------------------------------------------------------------------- Serial pc(USBTX, USBRX); DigitalOut myled1(LED1); // Assign LED1 output port TextLCD lcd(p22, p21, p8, p7, p6, p5,TextLCD::LCD40x2); // rs, e, d4-d7 // RAM ------------------------------------------------------------------------------------------- // ROM / Constant data --------------------------------------------------------------------------- // Function prototypes --------------------------------------------------------------------------- // Definition ------------------------------------------------------------------------------------ #define BAUD(x) pc.baud(x) #define GETC(x) pc.getc(x) #define PUTC(x) pc.putc(x) #define PRINTF(...) pc.printf(__VA_ARGS__) #define READABLE(x) pc.readable(x) //#define STYLE1 #define STYLE2 //#define STYLE_COM //------------------------------------------------------------------------------------------------- // Control Program //------------------------------------------------------------------------------------------------- // Put \r\n void put_rn ( void ) { PUTC('\r'); PUTC('\n'); } // Put \r void put_r ( void ) { PUTC('\r'); } // Change string -> number int xatoi (char **str, int32_t *res) { unsigned long val; unsigned char c, radix, s = 0; while ((c = **str) == ' ') { (*str)++; } if (c == '-') { s = 1; c = *(++(*str)); } if (c == '0') { c = *(++(*str)); if (c <= ' ') { *res = 0; return 1; } if (c == 'x') { radix = 16; c = *(++(*str)); } else { if (c == 'b') { radix = 2; c = *(++(*str)); } else { if ((c >= '0')&&(c <= '9')) { radix = 8; } else { return 0; } } } } else { if ((c < '1')||(c > '9')) { return 0; } radix = 10; } val = 0; while (c > ' ') { if (c >= 'a') { c -= 0x20; } c -= '0'; if (c >= 17) { c -= 7; if (c <= 9) { return 0; } } if (c >= radix) { return 0; } val = val * radix + c; c = *(++(*str)); } if (s) { val = -val; } *res = val; return 1; } // Get key input data void get_line (char *buff, int len) { char c; int idx = 0; for (;;) { c = GETC(); if (c == '\r') { buff[idx++] = c; break; } if ((c == '\b') && idx) { idx--; PUTC(c); PUTC(' '); PUTC(c); } if (((uint8_t)c >= ' ') && (idx < len - 1)) { buff[idx++] = c; PUTC(c); } } buff[idx] = 0; PUTC('\n'); } // RTC related subroutines void chk_and_set_time(char *ptr) { int32_t p1; struct tm t; time_t seconds; char buf[40]; if (xatoi(&ptr, &p1)) { t.tm_year = (uint8_t)p1 + 100; PRINTF("Year:%d ",p1); xatoi( &ptr, &p1 ); t.tm_mon = (uint8_t)p1 - 1; PRINTF("Month:%d ",p1); xatoi( &ptr, &p1 ); t.tm_mday = (uint8_t)p1; PRINTF("Day:%d ",p1); xatoi( &ptr, &p1 ); t.tm_hour = (uint8_t)p1; PRINTF("Hour:%d ",p1); xatoi( &ptr, &p1 ); t.tm_min = (uint8_t)p1; PRINTF("Min:%d ",p1); xatoi( &ptr, &p1 ); t.tm_sec = (uint8_t)p1; PRINTF("Sec: %d",p1); put_rn(); seconds = mktime(&t); set_time(seconds); } seconds = time(NULL); strftime(buf, 40, "%B %d,'%y, %H:%M:%S", localtime(&seconds)); PRINTF("Time: %s", buf); put_rn(); } // Help Massage void msg_hlp (void) { PRINTF("t - Check and set RTC"); put_rn(); PRINTF("/ - Show time every second (Esc -> hit any key)"); put_rn(); PRINTF("? - Help"); put_rn(); } int main() { char *ptr; char linebuf[64]; char buf[40]; time_t seconds; lcd.cls(); lcd.locate(0, 0); lcd.locate(0, 0); // 1st line top // 1234567890123456789012345678901234567890 lcd.printf(" Waiting for time adjustment via com "); put_rn(); seconds = time(NULL); PRINTF("Current time is"); put_rn(); #ifdef STYLE_COM PRINTF("Time: %s", ctime(&seconds)); #else strftime(buf,40, "%I:%M:%S %p (%Y/%m/%d)", localtime(&seconds)); PRINTF("Time: %s", buf); #endif put_rn(); PRINTF("Is it correct time?"); put_rn(); PRINTF("YES -> please enter '/'"); put_rn(); PRINTF("NO -> please enter t yy mm dd hh mm ss <ret>"); put_rn(); for (;;) { put_r(); PUTC('>'); ptr = linebuf; get_line(ptr, sizeof(linebuf)); switch (*ptr++) { //--------------------------------------------------------------------------------- // check and set RTC //--------------------------------------------------------------------------------- case 't' : put_r(); chk_and_set_time(ptr); break; //--------------------------------------------------------------------------------- // check and set RTC //--------------------------------------------------------------------------------- case '/' : put_r(); PRINTF("Current Time -> Plese see LCD also"); put_rn(); while (1) { if (READABLE()) { break; } 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); #ifdef STYLE_COM PRINTF("Time: %s", ctime(&seconds)); #else PRINTF("Time: %s", buf); #endif put_rn(); } break; //--------------------------------------------------------------------------------- // check and set RTC //--------------------------------------------------------------------------------- case '?' : default : put_r(); msg_hlp(); break; } } }