PIC24FJ128单片机门禁智能装置程序

/***************************************************************************** * * Real Time Clock Calender * ***************************************************************************** * FileName: rtcc.c * Dependencies: * Processor: PIC24 * Compiler: C30 xx.xx or higher * Linker: MPLINK 03.20.01 or higher * Company: Microchip Technology Incorporated * * Software License Agreement * * The software supplied herewith by Microchip Technology Incorporated * (the "Company") is intended and supplied to you, the Company's * customer, for use solely and exclusively with products manufactured * by the Company. * * The software is owned by the Company and/or its supplier, and is * protected under applicable copyright laws. All rights are reserved. * Any use in violation of the foregoing restrictions may subject the * user to criminal sanctions under applicable laws, as well as to * civil liability for the breach of the terms and conditions of this * license. * * THIS SOFTWARE IS PROVIDED IN AN "AS IS" CONDITION. NO WARRANTIES, * WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT NOT LIMITED * TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A * PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. THE COMPANY SHALL NOT, * IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL OR * CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER. * * * Author Date Comment *~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ * Chris Valenti 05-26-05 ... * Ross Fosler 06-06-2005 Several changes * Anton Alkhimenok 10-21-2005 Get/Set functions *****************************************************************************/ #include "system.h" /***************************************************************************** * Structures: _time and _time_chk * * Overview: These structures contain the time and date. * RTCCProcessEvents updates them. _time_chk is used as input/output for * get/set operations. * *****************************************************************************/ RTCC _time; RTCC _time_chk; /***************************************************************************** * Arrays: _time_str and _date_str * * Overview: These arrays contain the time and date strings. * RTCCProcessEvents updates them. * *****************************************************************************/ char _time_str[16] = " "; // Sat 10:01:15 char _date_str[16] = " "; // Sep 30, 2005 // The flag stops updating time and date and used for get/set operations. unsigned char _rtcc_flag; /***************************************************************************** * Function: RTCCProcessEvents * * Preconditions: RTCCInit must be called before. * * Overview: The function grabs the current time from the RTCC and translate * it into strings. * * Input: None. * * Output: It update time and date strings _time_str, _date_str, * and _time, _time_chk structures. * *****************************************************************************/ void RTCCProcessEvents(void) { // Process time object only if time is not being set while (!_rtcc_flag) { // Grab the time RCFGCALbits.RTCPTR = 0; _time.prt00 = RTCVAL; RCFGCALbits.RTCPTR = 1; _time.prt01 = RTCVAL; RCFGCALbits.RTCPTR = 2; _time.prt10 = RTCVAL; RCFGCALbits.RTCPTR = 3; _time.prt11 = RTCVAL; // Grab the time again RCFGCALbits.RTCPTR = 0; _time_chk.prt00 = RTCVAL; RCFGCALbits.RTCPTR = 1; _time_chk.prt01 = RTCVAL; RCFGCALbits.RTCPTR = 2; _time_chk.prt10 = RTCVAL; RCFGCALbits.RTCPTR = 3; _time_chk.prt11 = RTCVAL; // Verify there is no roll-over if ((_time.prt00 == _time_chk.prt00) && (_time.prt01 == _time_chk.prt01) && (_time.prt10 == _time_chk.prt10) && (_time.prt11 == _time_chk.prt11)) { switch (_time.mth) { default: case 0x01: _date_str[0] = 'J'; _date_str[1] = 'a'; _date_str[2] = 'n'; break; case 0x02: _date_str[0] = 'F'; _date_str[1] = 'e'; _date_str[2] = 'b'; break; case 0x03: _date_str[0] = 'M'; _date_str[1] = 'a'; _date_str[2] = 'r'; break; case 0x04: _date_str[0] = 'A'; _date_str[1] = 'p'; _date_str[2] = 'r'; break; case 0x05: _date_str[0] = 'M'; _date_str[1] = 'a'; _date_str[2] = 'y'; break; case 0x06: _date_str[0] = 'J'; _date_str[1] = 'u'; _date_str[2] = 'n'; break; case 0x07: _date_str[0] = 'J'; _date_str[1] = 'u'; _date_str[2] = 'l'; break; case 0x08: _date_str[0] = 'A'; _date_str[1] = 'a'; _date_str[2] = 'g'; break; case 0x09: _date_str[0] = 'S'; _date_str[1] = 'e'; _date_str[2] = 'p'; break; case 0x10: _date_str[0] = 'O'; _date_str[1] = 'c'; _date_str[2] = 't'; break; case 0x11: _date_str[0] = 'N'; _date_str[1] = 'o'; _date_str[2] = 'v'; break; case 0x12: _date_str[0] = 'D'; _date_str[1] = 'e'; _date_str[2] = 'c'; break; } _date_str[3] = ' '; _date_str[6] = ','; _date_str[7] = ' '; _date_str[8] = '2'; _date_str[9] = '0'; _date_str[4] = (_time.day >> 4) + '0'; _date_str[5] = (_time.day & 0xF) + '0'; _date_str[10] = (_time.yr >> 4) + '0'; _date_str[11] = (_time.yr & 0xF) + '0'; switch (_time.wkd) { default: case 0x00: _time_str[0] = 'S'; _time_str[1] = 'u'; _time_str[2] = 'n'; break; case 0x01: _time_str[0] = 'M'; _time_str[1] = 'o'; _time_str[2] = 'n'; break; case 0x02: _time_str[0] = 'T'; _time_str[1] = 'u'; _time_str[2] = 'e'; break; case 0x03: _time_str[0] = 'W'; _time_str[1] = 'e'; _time_str[2] = 'd'; break; case 0x04: _time_str[0] = 'T'; _time_str[1] = 'h'; _time_str[2] = 'u'; break; case 0x05: _time_str[0] = 'F'; _time_str[1] = 'r'; _time_str[2] = 'i'; break; case 0x06: _time_str[0] = 'S'; _time_str[1] = 'a'; _time_str[2] = 't'; break; } _time_str[3] = ' '; _time_str[6] = ':'; _time_str[9] = ':'; _time_str[4] = (_time.hr >> 4) + '0'; _time_str[5] = (_time.hr & 0xF) + '0'; _time_str[7] = (_time.min >> 4) + '0'; _time_str[8] = (_time.min & 0xF) + '0'; _time_str[10] = (_time.sec >> 4) + '0'; _time_str[11] = (_time.sec & 0xF) + '0'; break; } } } /***************************************************************************** * Function: RTCCInit * * Preconditions: RTCCInit must be called before. * * Overview: Enable the oscillator for the RTCC * * Input: None. * * Output: None. *****************************************************************************/ void RTCCInit(void) { // Enables the LP OSC for RTCC operation asm("mov #OSCCON,W1"); asm("mov.b #0x02, W0"); asm("mov.b #0x46, W2"); asm("mov.b #0x57, W3"); asm("mov.b W2, [W1]"); asm("mov.b W3, [W1]"); asm("mov.b W0, [W1]"); // Unlock sequence must take place for RTCEN to be written RCFGCAL = 0x0000; mRTCCUnlock(); RCFGCALbits.RTCEN = 1; mRTCCOn(); mRTCCSetSec(0x00); mRTCCSetMin(0x10); mRTCCSetHour(0x10); mRTCCSetWkDay(0x1); mRTCCSetDay(0x10); mRTCCSetMonth(0x10); mRTCCSetYear(0x05); mRTCCSet(); } /***************************************************************************** * Function: RTCCSet * * Preconditions: None. * * Overview: The function upload time and date from _time_chk into clock. * * Input: _time_chk - structure containing time and date. * * Output: None. * *****************************************************************************/ void RTCCSet(void) { mRTCCUnlock(); // Unlock the RTCC // Set the time RCFGCALbits.RTCPTR = 0; RTCVAL = _time_chk.prt00; RCFGCALbits.RTCPTR = 1; RTCVAL = _time_chk.prt01; RCFGCALbits.RTCPTR = 2; RTCVAL = _time_chk.prt10; RCFGCALbits.RTCPTR = 3; RTCVAL = _time_chk.p