ATtiny13-RGB-LED-Colormixer源程序

ID:383566 · 發表于 2018-8-6 22:29

RGB LED MIXER- In this project we used the attiny 13 microcntroller for operating the RGB LED AND COLOR MIXING.

單片機源程序如下:

/*
Chapter - 2
Project - 3 RGB Colormixer
*/
#include<avr/io.h>
#include<avr/interrupt.h>
#define F_CPU 9600000UL
#include<util/delay.h>
//Prototypes
//This function is called to switch on the LED at the
//Required stage of PWM cycle
void abc(unsigned char a,unsigned char b,unsigned char c,unsigned char status);
//This function read the value of ADC from selected channel
unsigned char read_adc(unsigned char channel);
//Global variables
volatile unsigned char e;
volatile unsigned char pwm[3]={255,255,255};
int main(void)
{
DDRB &= ~((1<<3)|(1<<4)|(1<<5));//ADC inputs
//Initially LEDs should be off
DDRB |= (1<<0|1<<1|1<<2);
PORTB |= (1<<0)|(1<<1)|(1<<2);
//ADC init
ADMUX = 0b00100000; //ADC0 (default),ADLAR,VCc
ADCSRA = 0b10000010; //prescaled by 4
//Timer Initialisation
TCCR0A = 0x00;
TCCR0B = 0x01;//No Prescaling
TIMSK0 = 1<<TOIE0;//Overflow Interrupt Enabled
sei();//Global Interrupts Enabled
while(1)
{
pwm[0]=read_adc(0);
pwm[1]=read_adc(2);
pwm[2]=read_adc(3);
_delay_ms(2);//Just a small delay
}
}
//Overflow routine for Timer 0
ISR(TIM0_OVF_vect)
{
//Value of e decides the no of levels of PWM.
//This has 256 levels for e - 0 to 255
//0 - complete on and 255 is complete off
if(e==255)
{
e=0;
PORTB |= (1<<0)|(1<<1)|(1<<2);
}
abc(pwm[0],pwm[1],pwm[2],e);
e++;
}
//This function is called to switch on the LED at the
//Required stage of PWM cycle
void abc(unsigned char a,unsigned char b,unsigned char c,unsigned char status)
{
if((status==a))
{
PORTB&= ~(1<<0);
}
if((status==b))
{
PORTB&= ~(1<<1);
}
if((status==c))
{
PORTB&= ~(1<<2);
}
}
//This function read the value of ADC from selected channel
unsigned char read_adc(unsigned char channel)
{
unsigned char k;
unsigned int adcvalue=0;
ADMUX = ADMUX&(0b11111100); //clear channel select bits
ADMUX |= channel;
//neglect first reading after changing channel
ADCSRA |= 1<<ADSC;
while(ADCSRA&(1<<ADSC));//Wait
adcvalue=ADCH;
adcvalue=0;//neglectreading
for(k=0;k<=7;k++)
{
ADCSRA |= 1<<ADSC;
while(ADCSRA&(1<<ADSC));//Wait
adcvalue += ADCH;
}
return (adcvalue>>3); //divide by 8
}

復制代碼

所有資料51hei提供下載:

Project-3-RGB-LED-Colormixer.rar (116.49 KB, 下載次數: 21)

ID:240626 · 發表于 2019-10-30 16:40

你這個用arduino軟件打開燒錄不了

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ATtiny13-RGB-LED-Colormixer源程序