[es] - izrada countdown timer-a

plc
vladislav
Velika Plana

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*.dynamic.isp.telekom.rs.

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Re: izrada countdown timer-a

^{12.10.2010. u 15:44 - pre 164 meseci}

/*
* Project name:
Timer0_Interrupt (Using Timer0 to obtain interrupts)
* Copyright:
(c) Mikroelektronika, 2008.
* Revision History:
20080930:
- initial release;
* Description:
This code demonstrates how to use Timer0 and it's interrupt.
Program toggles LEDs on PORTB.
* Test configuration:
MCU: PIC16F887
http://ww1.microchip.com/downloads/en/DeviceDoc/41291F.pdf
Dev.Board: EasyPIC6
http://www.mikroe.com/eng/prod...7/easypic6-development-system/
Oscillator: HS, 08.0000 MHz
Ext. Modules: -
SW: mikroC PRO for PIC
http://www.mikroe.com/eng/products/view/7/mikroc-pro-for-pic/
* NOTES:
- Turn on LEDs on PORTB switch SW9.2 (board specific).
*/

unsigned cnt;

void interrupt() {
if (TMR0IF_bit) {
cnt++; // increment counter
TMR0IF_bit = 0; // clear TMR0IF
TMR0 = 96;
}
}

void main() {
OPTION_REG = 0x84; // Assign prescaler to TMR0
ANSEL = 0; // Configure AN pins as digital
ANSELH = 0;
C1ON_bit = 0; // Disable comparators
C2ON_bit = 0;
TRISB = 0; // PORTB is output
PORTB = 0xFF; // Initialize PORTB
TMR0 = 96; // Timer0 initial value
INTCON = 0xA0; // Enable TMRO interrupt
cnt = 0; // Initialize cnt

do {
if (cnt >= 400) {
PORTB = ~PORTB; // Toggle PORTB LEDs
cnt = 0; // Reset cnt
}
} while(1);
}

to ti tajmer TMR0...

LCD PRIMER

// LCD module connections
sbit LCD_RS at LATD2_bit; // for writing to output pin always use latch (PIC18 family)
sbit LCD_EN at LATD3_bit; // for writing to output pin always use latch (PIC18 family)
sbit LCD_D4 at LATD4_bit; // for writing to output pin always use latch (PIC18 family)
sbit LCD_D5 at LATD5_bit; // for writing to output pin always use latch (PIC18 family)
sbit LCD_D6 at LATD6_bit; // for writing to output pin always use latch (PIC18 family)
sbit LCD_D7 at LATD7_bit; // for writing to output pin always use latch (PIC18 family)

sbit LCD_RS_Direction at TRISD2_bit;
sbit LCD_EN_Direction at TRISD3_bit;
sbit LCD_D4_Direction at TRISD4_bit;
sbit LCD_D5_Direction at TRISD5_bit;
sbit LCD_D6_Direction at TRISD6_bit;
sbit LCD_D7_Direction at TRISD7_bit;
// End LCD module connections

char txt1[] = "mikroElektronika";
char txt2[] = "BigPIC6";
char txt3[] = "Lcd4bit";
char txt4[] = "example";

char i; // Loop variable

void Move_Delay() { // Function used for text moving
Delay_ms(500); // You can change the moving speed here
}

void main(){

ADCON1 |= 0x0F; // Configure AN pins as digital
CMCON |= 7; // Disable comparators

Lcd_Init(); // Initialize LCD
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF); // Cursor off

Lcd_Out(1,6,txt3); // Write text in first row
Lcd_Out(2,6,txt4); // Write text in second row
Delay_ms(2000);
Lcd_Cmd(_LCD_CLEAR); // Clear display

Lcd_Out(1,1,txt1); // Write text in first row
Lcd_Out(2,5,txt2); // Write text in second row
Delay_ms(2000);

// Moving text
for(i=0; i<4; i++) { // Move text to the right 4 times
Lcd_Cmd(_LCD_SHIFT_RIGHT);
Move_Delay();
}

while(1) { // Endless loop
for(i=0; i<7; i++) { // Move text to the left 7 times
Lcd_Cmd(_LCD_SHIFT_LEFT);
Move_Delay();
}

for(i=0; i<7; i++) { // Move text to the right 7 times
Lcd_Cmd(_LCD_SHIFT_RIGHT);
Move_Delay();
}

}
}

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conver
Milos Milutinovic
Paracin

Član broj: 226436
Poruke: 112
212.200.65.*

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Re: izrada countdown timer-a

^{13.10.2010. u 07:37 - pre 164 meseci}

hvala plc

evo sta sam ja izmuvao... ali opet ne radi! Na lcd mi ispisuje samo 0 ili 1
malo sam prepisivao, malo budzio... ali nece!

#include "16F887.h"
#use delay(clock=4MHz)

#include "LCD.c"

#define XTAL_FREQUENCY 4000000
#define TIMER1_FREQUENCY (XTAL_FREQUENCY / 4) // 1 clock tick = 1 instr. cycle = crystal frequency / 4
int32 Ticker;
int8 seconds;

void Initialize_RTC(void)
{
Ticker = TIMER1_FREQUENCY; // initialize clock counter to number of clocks per second
setup_timer_1( T1_INTERNAL | T1_DIV_BY_4 ); // initialize 16-bit Timer1 to interrupt
// exactly every 65536 clock cycles
// (about 76 times per second)
enable_interrupts(INT_TIMER1); // Start RTC
}
void TIMER1_isr()
{
Ticker -= 65536; // Decrement ticker by clocks per interrupt
if ( Ticker < 65536 ) // If second has expired
{ Ticker += TIMER1_FREQUENCY; // Increment ticker by clocks per second
seconds++; // Increment number of seconds
}
}
void main(){

enable_interrupts(INT_TIMER1); //unmask Timer1 overflow interrupt
enable_interrupts(global); //enable all unmasked interrupts

lcd_init();
delay_ms(100);

while(1){
if(input(PIN_E0))
{
Delay_ms(500);
lcd_putc("\f");
lcd_gotoxy(1,1);
printf(lcd_putc,"%d"seconds);
}
}

}

Odgovor na temu

plc
vladislav
Velika Plana

Član broj: 266870
Poruke: 107
*.dynamic.isp.telekom.rs.

Sajt: www.industrijasrbije.rs

+1 Profil

Re: izrada countdown timer-a

^{13.10.2010. u 14:43 - pre 164 meseci}

Da... vidim samo da si ispustio promenljivu .... f ....

Molim te ne zameri mi ako sam negde pogresio davno sam ovo radio .
Ovde ima od prilike ono sta ti treba samo fali konfiguracija za LCD i proracun sekunde u interaptu.

unsigned cnt=0;//globalne promenljive
char sekunde=0;//

void interrupt() { // interapt TMRO
if (TMR0IF_bit) {
cnt++; // increment counter
TMR0IF_bit = 0; // clear TMR0IF
TMR0 = 96;
}
if (cnt >= 400) // moras prpracunati koliko je 1sec.
{
sekunde--; // Toggle PORTB LEDs
cnt = 0; // Reset cnt
}
}

void main() {
OPTION_REG = 0x84; // Assign prescaler to TMR0
ANSEL = 0; // Configure AN pins as digital
ANSELH = 0;
C1ON_bit = 0; // Disable comparators
C2ON_bit = 0;
TRISB = 0x01; // PORTB is output
PORTB = 0x00; // Initialize PORTB
TMR0 = 96; // Timer0 initial value
INTCON = 0x00; // TMRO interrupt
cnt = 0; // Initialize cnt
// Lcd_Init(); // Initialize LCD
//// Lcd_Cmd(_LCD_CLEAR); // Clear LCD
// Lcd_Cmd(_LCD_CURSOR_OFF); // Turn cursor off
Delay_ms(1000);

while(1)
{

while (PORTB.f0==1 ) ; //pritisak taster portb.f0
while(PORTB.f0==0) //prilikom otpusta dodeljujes vrednost sekundi i ukljucujes interapt
{
sekunde=60;
INTCON = 0xA0; // Enable TMRO interrupt
portb.f1=1;// Relej=1;
}
if(sekunde==0) // kada istekne 60 sec. stopiraj intrapt
{
INTCON = 0x00; // Disable TMRO interrupt
portb.f1=0;// Relej=0;
}
///// Lcd_Out(1, 1, "sekunde");
///// Lcd_Out(2,1,sekunde);
}
}

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