Evo ti kod , provjeri da li sam mozda napravio neku gresku, trebalo bi da kad pritiskas tipke povecava za +1 PWM , poslije treba prepraviti da ako se drzi duze da se povecava korak za koji povecava PWM.
Kako nemam vremena da proucavam datasheet za taj atmel i da ukljucim hardverski tajmer a pod linuksom nemogu da simuliram taj kod da vidim koliko vremena treba da izvrsi x linija koda onda sam izmijeni ovo
ako lcd u jako dugackim vremenskim intervalima osvijezava displej ili u jako kratkim.
if(time>25000)
broj promijeni na 10000 ili 50000 ili vec probaj sam mozes do 60000 ispod recimo 2000-3000 nemoj jer taj atmel treba da je jako brz.
PWM ce u startu biti na pola vrijednosti.
Izbrises test_lcd.c i ovo sve dolje kopiras ponovno i probas kompajlirati.
Code: Select all
//#define F_CPU 8000000UL
#define SWITCH_SAMPLE 50 // 50ms
#define SwUp() (((PINB&0x02)==0) ? 0 : 1 ) //PB1
#define SwDown() (((PINB&0x01)==0) ? 0 : 1 ) //PB0
#include <stdlib.h>
#include <avr/io.h>
#include <avr/pgmspace.h>
#include <avr/interrupt.h>
#include "lcd.h"
#include <util/delay.h>
uint16_t y,ADCvalue,target_current=512;
void ADC_Init(void)
{
// Configure ADC pins (inputs and disabled pull-ups).
DDRB &= ~((1<<PB6)|(1<<PB7));
PORTB &= ~((1<<PB6)|(1<<PB7));
ADMUX = (1<<REFS0) | (1<<REFS1)| (1<<REFS2) | (1<<MUX0) | (1<<MUX3) | (1<<MUX4);
ADCSRA = (1<<ADEN) | (1<<ADSC) | (1<<ADIE) | (1<<ADPS0) | (1<<ADPS1) | (1<<ADPS2) | (1<<ADATE);
ADCSRB = 0;
DIDR0=(1<<AREFD);
DIDR1= (1<<ADC9D) | (1<<ADC8D);
}
void PWM_Start(void)
{
TCCR1A = (1<<COM1B1)|(1<<COM1B0)|(1<<PWM1B);
TCCR1D = (0<<WGM11)|(0<WGM10);
y=1023;
TC1H = (y >> 8);
OCR1C =(unsigned char)y;
// Set PWM port pin to output.
DDRB |= (1<<PB3);
// Enable PLL, use full speed mode.
PLLCSR = (0<<LSM) | (1<<PLLE);
// Now wait for PLL to lock.
do{
}while((PLLCSR & (1<<PLOCK)) == 0);
// Use PLL as clock source.
PLLCSR |= (1<<PCKE);
// CLK PCK = 64MHz / 1 = 64MHz.
TCCR1B |= (0<<CS13)|(0<<CS12)|(1<<CS11)|(0<<CS10);
}
void test_button(void)
{
uint8_t switch_up=0,switch_down=0;
uint16_t t_switch_up=0,t_switch_down=0;
//-------------------------------------------------------------
//Ako ti je stanje prekidaca isto kao i varijabla
if( SwUp() == switch_up){
//resetiras timer
t_switch_up = 0;
}
//inace provjeri\u0161 jeli proslo debounce vrijeme
else if( t_switch_up > SWITCH_SAMPLE ){
//izjednacis varijablu sa novim stanjem
switch_up = SwUp();
//i ponovno resetiras brojac
t_switch_up = 0;
//Ako je tipka stisnuta i izvrsis povecanje target struje
if( !switch_up ){
target_current++;
}
}
//-------------------------------------------------------------
//-------------------------------------------------------------
//Ako ti je stanje prekidaca isto kao i varijabla
if( SwDown() == switch_down){
//resetiras timer
t_switch_down = 0;
}
//inace provjeri\u0161 jeli proslo debounce vrijeme
else if( t_switch_down > SWITCH_SAMPLE ){
//izjednacis varijablu sa novim stanjem
switch_down = SwDown();
//i ponovno resetiras brojac
t_switch_down = 0;
//Ako je tipka stisnuta i izvrsis povecanje target struje
if( !switch_down ){
target_current--;
}
}
//-------------------------------------------------------------
}
int main(void)
{
char buffer[4],buffer1[4];
uint16_t time=0;
ADC_Init();
PWM_Start();
sei();
_delay_ms(500);
/* initialize display, cursor off */
lcd_init(LCD_DISP_ON);
lcd_clrscr();
for (;;) {
time++;
test_button();
if(target_current>1022)
{
target_current=1022;
}
if(target_current<1)
{
target_current=0;
}
TC1H = (target_current >> 8);
OCR1B =(unsigned char)target_current;
if(time>25000)
{
time=0;
/* convert interger into string */
itoa( ADCvalue , buffer, 10);
itoa( target_current , buffer1, 10);
lcd_clrscr();
lcd_gotoxy(0,0);
lcd_puts("ADC=\n");
lcd_gotoxy(4,0);
/* put converted string to display */
lcd_puts(buffer);
lcd_gotoxy(0,1);
lcd_puts("PWM=\n");
/* convert interger into string */
lcd_gotoxy(4,1);
/* put converted string to display */
lcd_puts(buffer1);
}
}
}
ISR(ADC_vect)
{
ADCvalue = ADCW;
}
...
