#include<p18cxxx.h>
#include<delays.h>
#include<xlcd.h>
#pragma config OSC=HS
#pragma config WDT=OFF
#pragma config LVP=OFF
#pragma config BOR=OFF
#pragma config MCLRE=OFF
void MyHighInt(void);
#pragma interrupt MyHighInt //Это высокоприоритетное прерывание
#pragma code high_vector=0x08 //Это вектор по адресу 0х08
void high_vector(void){
_asm GOTO MyHighInt _endasm
}
//----------------------Память данных------------------------------
#pragma udata access IntMyData
near short long time;
#pragma udata
char timeString[12];
//---------------------Функции-------------------------------------
#pragma code
///////////////////////////////////////////////
void DelayFor18TCY(void)
{
Delay10TCYx(2);
}
void DelayPORXLCD(void)
{
Delay1KTCYx(15);
}
void DelayXLCD(void)
{
Delay1KTCYx(5);
}
///////////////////////////////////////////////////////////////////
void getTimeString(char mode)
{
char ptr=0;
char hours=time/3600;
char amPM='A';
char minutes=(time%3600)/60;
char seconds=(time%3600)%60;
if(mode)
{
if(hours==12)
{
hours-=12;
amPM='P';
}
if(hours==0)
hours=12;
}
if((hours/10)==0){
timeString[ptr++]=' ';
}
else{
timeString[ptr++]=hours/10|0x30;
}
timeString[ptr++]=hours%10|0x30;
timeString[ptr++]=':';
timeString[ptr++]=minutes/10|0x30;
timeString[ptr++]=minutes%10|0x30;
timeString[ptr++]=':';
timeString[ptr++]=seconds/10|0x30;
timeString[ptr++]=seconds%10|0x30;
if(mode)
{
timeString[ptr++]=' ';
timeString[ptr++]=amPM;
timeString[ptr++]='M';
}
timeString[ptr]=0;
}
void DoTime(void)
{
TMR1H=0x80;
PIR1bits.TMR1IF=0;
time++;
if(time==86400){
time=0;
}
}
void MyHighInt(void){
if(PIR1bits.TMR1IF)
{
DoTime();
}
}
void main(void)
{
ADCON1=0xEF;
OpenXLCD(FOUR_BIT&LINES_5X7);
WriteCmdXLCD(CURSOR_OFF&BLINK_OFF);
RCONbits.IPEN=1;
TMR1L=0x00;
TMR1H=0x80;
T1CON=0x01;
IPR1bits.TMR1IP=1;
PIE1bits.TMR1IE=1;
INTCONbits.GIEH=1;
while(1)
{
getTimeString(1);
SetDDRamAddr(0x80);
putsXLCD(timeString);
}
}
