TRISA = 0xff; // low half byte as keyscan in
TRISE = 0x00;
ADCON0 = 0x00;
ADCON1 = 0x06; // all digital I/Os
lcd_init();
INTCON = 0x00;
lcd_write_inst(0x80); // set lcd ddram address
for (pStr = StrPower1;*pStr!=0;pStr++)
{
lcd_write_data(*pStr);
}
lcd_write_inst(0x0c); // LCD cursor off
PIR1 = PIR2 = 0x00;
T1CON = 0x0f; // T1CON: -- T1CKPS1 T1CPS0 T1OSCEN /T1SYNC TMR1CS TMR1ON
TMR1H = 0x80;
TMR1L = 0x00;
TMR1IF = 0;
CCPR2H = 0x7f;
CCPR2L = 0xff;
CCP2CON = 0x0b; // compare mode,set ccp2if,reset tmr1
CCP2IF = 0;
for (cnt=5;cnt>0;cnt--) // test for 5sec.
{
lcd_write_inst(0xc0+8); // set LCD adress
lcd_write_data(cnt + ’0’);
while (CCP2IF == 0) // wait for timer1 overflow
{
restart_wdt();
}
//TMR1H = 0x80;
CCP2IF = 0;
}
// write current date to lcd line 2
lcd_write_inst(0x01); // clear LCD display
lcd_write_inst(0xc0+3); // set LCD line2
lcd_write_data(CurrentDate.year1 + ’0’);
lcd_write_data(CurrentDate.year2 + ’0’);
lcd_write_data(CurrentDate.year3 + ’0’);
lcd_write_data(CurrentDate.year4 + ’0’);
lcd_write_data(’/’);
lcd_write_data(CurrentDate.monthh + ’0’);
lcd_write_data(CurrentDate.monthl + ’0’);
lcd_write_data(’/’);
lcd_write_data(CurrentDate.dayh + ’0’);
lcd_write_data(CurrentDate.dayl + ’0’);
Alarm1Enable = true; //false;
Alarm2Enable = true; //false;
INTCON = 0xc0; // set GIE & PEIE
//TMR1IE = 1; // enable timer1 interrupt
CCP2IE = 1; // enable ccp2 interrupt
CurrentMode = mode_time;
Alarm1Cnt = Alarm2Cnt = 0;
T2CON = 0x07; // T2CON: - TOUTPS3 TOUTPS2 TOUTPS1 TOUTPS0 TMR2ON T2CKPS1 T2CKPS0
// timer2 enable,prescaler = 16
PR2 = PWM_period; // set pwm period
CCPR1L = PWM_DC; // set pwm duty cycle
CCP1CON = PWM_off;
while(1)
{
restart_wdt();
KeyOld = get_key();
delay_ms(20);
KeyNew = get_key();
if (((KeyNew & 0x0f) != 0x00) & (KeyNew == KeyOld))
{ // some key pressed
if (BackLightEn == 1) // back light not on
{
BackLightEn = 0; // enable back-light
BackLightTimer = 0; // start delay counter
}
else
{
if (KeyNew == key_0)
KeyNew = 0;
else if(KeyNew == key_1)
KeyNew = 1;
else if(KeyNew == key_2)
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本文关键字：程序 C语言 PIC单片机，单片机-工控设备 - PIC单片机
