ATtiny

Rychly zoznam projektov a stranok k programovaniu ATtiny (vid aj projekty DTV)

Pighixxx Pinout diagram https://pighixxx.tumblr.com/image/93202369320

ATtiny Core library for Arduino https://github.com/SpenceKonde/ATTinyCore

Programovanie napr. cez USBtiny ISP

Strasne vela navodov je na strankach Roba Ulbrichta https://www.arduinoslovakia.eu/ Napriklad:

Nelineárna citlivosť ľudského oka

Łukasz Podkalicki

SparkFun

ATtiny Guide
Quick Reference Sheet - vytlacit na cvika
RGB sviecka - blikajuce 3 RGB
Detektor pretecenia vody na baterku CR3202 aj s modifikaciami programu

Technoblogy

Dalsie:

Da sa programovat v Blockly cez simulator v TinkerCADe
Vseobecne
http://homemadehardware.com/guides/programming-an-attiny85/
Vseobecne
SPI Master aj Slave
I2C Master aj Slave !!!
RGB demo
Sapien IR CTRL Palov projekt s USB aj IR
RGB Led tutorial
Power save
- rezimy su dobre opisane (aj s projektom na casovac s pipakom): http://www.technoblogy.com/show?KX0
- https://circuitdigest.com/microcontroller-projects/arduino-sleep-modes-and-how-to-use-them-to-reduce-power-consumption

Problemy

Na ake najmensie napatie to este pracuje? Bude modra LED svietit? Minimalizuj prudovu zataz.
Ked budu programovacie piny obsadene LED alebo tlacitkom tak moze byt problem, trocha sa tomu venuju tuto: https://www.kanda.com/avr-isp-circuits.html
- Alternativou moze byt UPDI Unified Program and Debug Interface (UPDI) programator, ktory pouziva len jeden pin - podobne ako DebugWire.
- Taky programator sa da spravit z Arduino Nano napr. https://daumemo.com/diy-updi-usb-programmer-which-can-be-made-with-cheap-hardware/
- Zakazat RESET (aby bol k dispozicii dalsi pin) nema zmysel, pretoze bez RESETu sa neda cip preprogramovat inak ako v HV programatore

Fuses

Na koniec:

https://github.com/MCUdude/MightyCore - moznost Arduino programovania pre ATmega16 a 32

1. Program na jednoduché blikanie LEDkou

Program v grafickom jazyku Blockly (TinkerCAD).

AVR CArduinoAssembler

##define F_CPU 8000000UL  // toto je lepsie vlozit do parametrov pre kompilator

#include <avr/io.h>
#include <util/delay.h>

#define LED1  PB2  // pripojena dioda 

int main(void)
{
    DDRB |= (1 << LED1);  // set pin as OUTPUT	
	
    while(1)
    {
         PORTB |=  (1<<LED1);          // ... tak rozsviet LED, t.j. set PB5 na log. 1 
	     _delay_ms(200);
         PORTB &= ~(1<<LED1);         // zhasni LED, t.j. clear PB5 na log. 0
	  	 _delay_ms(2000);
    }
}

#define LEDpin 4  //aby nekolidovalo s programatorom, takto sa da trvale nechat pripojeny

void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(LEDpin, OUTPUT);
}

// the loop function runs over and over again forever
void loop() {
  digitalWrite(LEDpin, HIGH);   // turn the LED on (HIGH is the voltage level)
  delay(100);                       // wait for a second
  digitalWrite(LEDpin, LOW);    // turn the LED off by making the voltage LOW
  delay(1000);                       // wait for a second
}

/*
 *  LED Blink s periodou 100:1000 ms 
 *  delay vygenerovane tu http://darcy.rsgc.on.ca/ACES/TEI4M/AVRdelay.html
 *  pre frekvenciu 8 MHz (ATtiny45, internal osc.)
 * 
 *  LED je pripojena na pin7 (PORTB.2)
 */ 

START:	        SBI DDRB,2       ; DDRB.2 = 1 (t.j. Output)
LOOP:
		SBI PORTB,2      ; PORTB.2 = 1 (t.j. High, rozsviet LED)

;		CALL DELAY      ; UNSUPPORTED INSTRUCTION ON ATtiny!!!! - treba nahradit RCALL + RET
	    
		ldi  r18, 5     ; 100ms SVIETI
		ldi  r19, 15
		ldi  r20, 242
L1:		dec  r20
		brne L1
		dec  r19
		brne L1
		dec  r18
		brne L1
		nop

		CBI PORTB,2     ; PORTB.2 = 0 (t.j. Low, zhasni LED)

		ldi  r18, 41    ; jedna seunda nesvieti (vypocet pre 8MHz!!!)
		ldi  r19, 150
		ldi  r20, 128
L2:		dec  r20
		brne L2
		dec  r19
		brne L2
		dec  r18
		brne L2
		nop

		RJMP LOOP		; Skok na zaciatok (JMP nepodporovane)

2. Tlačítko a LED

Program v grafickom jazyku Blockly (TinkerCAD).

ArduinoAVR CAssembler

#define SW1  1
#define LED1 2

void setup()
{
  pinMode(SW1,INPUT_PULLUP);
  pinMode(LED1,OUTPUT);
}

void loop()
{
  if (digitalRead(SW1) == 0) 
      digitalWrite(LED1, HIGH);
  else 
      digitalWrite(LED1, LOW);
  
}

#define F_CPU 8000000UL  // toto je lepsie vlozit do parametrov pre kompilator
#define set_bit(ADDRESS,BIT) (ADDRESS |= (1<<BIT))
#define clear_bit(ADDRESS,BIT) (ADDRESS &= ~(1<<BIT))


#include <avr/io.h>
#include <util/delay.h>

#define LED1  PB2  // pripojena dioda 
#define SW1   PB1  // pripojene tlacitko

int main(void)
{
    DDRB |= (1 << LED1);  // set LED1 pin as OUTPUT	
	DDRB &= ~(1<<SW1);    // set SW1 pin as INPUT (not necessary, default)
	PORTB |= (1<<SW1);    // SW1 pull-up ON
	
    while(1)
    {
      if ( bit_is_clear(PINB, SW1) )   // ak je stlacene tlacitko SW1
 	    set_bit(PORTB,LED1);           // LED1 = log.1
      else                             // inak
	    clear_bit(PORTB,LED1);         // LED1 = log.0
    }
	
	return 0;
}

/*
 *	Program01.asm
 *  
 *  Ovladanie LED diody tlacitkom
 *  Created: 16. 2. 2023 18:18:35
 */ 

START:	SBI DDRB,2       ; DDRB.2 = 1 (t.j. Output) - LED
		CBI DDRB,1       ; DDRB.1 = 0 (t.j. Input) - SW1
		SBI PORTB,1      ; PORTB.1 = 1 set SW1 Pull Up ON

LOOP:   SBI PORTB,2      ; PORTB.2 = 1 (t.j. High, rozsviet LED)
ON:     SBIS PINB,1      ; IF input on pin = 1 (button NOT pressed), skip next instruction
		RJMP ON          ; otherwise just loop here

	    CBI PORTB,2      ; PORTB.2 = 0 (t.j. Low, zhasni LED)
OFF:    SBIC PINB,1      ; if input on pin = 0 (button IS pressed),  skip next instruction
		RJMP OFF         ; otherwise just loop here

		RJMP LOOP		 ; Skok na LED On

ATtiny

Z SensorWiki

1. Program na jednoduché blikanie LEDkou

2. Tlačítko a LED