AVR Example T1 counter - História úprav

Balogh na 17:48, 21. február 2021

2021-02-21T17:48:27Z

← Staršia verzia		Verzia z 17:48, 21. február 2021
Riadok 5:		Riadok 5:
	iny terminal aby sa to pekne vypisovalo:		iny terminal aby sa to pekne vypisovalo:

	<source lang="c">
			<tabs>
			<tab name="Arduino"><source lang="c">
	#define SWITCH 5 // select the pin for Switch		#define SWITCH 5 // select the pin for Switch

Riadok 30:		Riadok 32:
	}		}

	</source>		</source></tab>
			</tabs>

Balogh na 11:26, 13. október 2010

2010-10-13T11:26:17Z

← Staršia verzia		Verzia z 11:26, 13. október 2010
Riadok 39:		Riadok 39:

	[[Obrázok:AVR Timer TCNT1 Counter.png\|center]]		[[Obrázok:AVR Timer TCNT1 Counter.png\|center]]


			Nasledovny kus programu nastavi pocitadlo na 5 impulzov pred pretecenim (0xFFFF - 5) a
			potom sleduje v hlavnej slucke, kedy nastane pretecenie. Ako hodinky je pouzity externy
			signal na T1, cize tlacitko alebo 555.

			<source lang="C">
			/* Example 9.2. Timer counter 1 in timer mode - pooled version */

			#define SWITCH 5 // Arduino D5, ATmega328 PD.5
			#define LED 13 // Arduino D13, ATmega328 PB.5

			int ledState = LOW; // variable used to store the last LED status, to toggle the light

			void setup() // run once, when the sketch starts
			{
			/* ********************* Init device ********************************** */

			pinMode(SWITCH, INPUT); // this pin is an INPUT
			pinMode(LED, OUTPUT);

			Serial.begin(9600);
			Serial.println("Timer T1 test:");

			TCCR1B = 0x07; // T1 clk = external clock source on pin T1, rising edge
			TCCR1A = 0x00; // T1 in timer mode
			TCNT1 = 0xFFFB; // initialize the counter (16-bit! Low+High bytes)
			TIFR1 = 0x01; // (1<<TOV1); if a 1 is written to a TOV1 bit
			// - the TOV1 bit will be cleared
			}

			/* ********************* Main Loop ************************************ */

			void loop() // run over and over again
			{
			if ( (TIFR1 & 0x01) == 0x01) // If the overflow flag is set
			{
			ledState = !ledState; // toggle the status of the ledPin
			digitalWrite(LED, ledState); // update the LED pin itself
			TCNT1 = 0xFFFB; // Restart T1 - reload
			TIFR1 = 0x01; // Clear the overflow flag
			}
			else
			asm("nop"); // Do nothing

			Serial.print("Input D5 = ");
			Serial.print(digitalRead(SWITCH),BIN);
			Serial.print(" TCNT1 = ");
			Serial.print(TCNT1,DEC);
			Serial.print('\r'); // this will not work with embedded Serial Monitor,
			// but works fine with e.g. putty terminal

			}

			</source>

Balogh na 09:38, 13. október 2010

2010-10-13T09:38:50Z

← Staršia verzia		Verzia z 09:38, 13. október 2010
Riadok 6:		Riadok 6:

	<source lang="c">		<source lang="c">
	#define SWITCH 5 // select the pin for Switch		#define SWITCH 5 // select the pin for Switch

	void setup()		void setup()
	{		{
	pinMode(SWITCH, INPUT); // this pin is an INPUT		pinMode(SWITCH, INPUT); // this pin is an INPUT
	TCNT1 = 0x00;		TCNT1 = 0x00; // initialize (CLEAR)counter
	TCCR1B = 0x07; // ~~timer1 clock~~ = external clock source on pin T1, rising edge		TCCR1B = 0x07; // T1 clk = external clock source on pin T1, rising edge

	Serial.begin(9600);		Serial.begin(9600);
Riadok 24:		Riadok 24:
	Serial.print(" TCNT1 = ");		Serial.print(" TCNT1 = ");
	Serial.print(TCNT1,DEC);		Serial.print(TCNT1,DEC);
	Serial.print('\r'); // ~~nefunguje so vstavanym~~,		Serial.print('\r'); // this will not work with embedded Serial Monitor,
	// ~~ale je OK s~~ putty ~~terminalom~~		// but works fine with e.g. putty terminal
	delay(250); // wait 1/4s for another
			delay(250); // wait 1/4s for another measurement
	}		}

Balogh na 09:36, 13. október 2010

2010-10-13T09:36:23Z

← Staršia verzia		Verzia z 09:36, 13. október 2010
Riadok 30:		Riadok 30:

	</source>		</source>



	[[Obrázok:AVR Timer T1 Counter.png\|center]]		[[Obrázok:AVR Timer T1 Counter.png\|center]]



			[[Obrázok:AVR Timer TCNT1 Counter.png\|center]]

Balogh na 09:26, 13. október 2010

2010-10-13T09:26:00Z

← Staršia verzia		Verzia z 09:26, 13. október 2010
Riadok 10:		Riadok 10:
	void setup()		void setup()
	{		{
	~~Serial.begin(9600);~~
	pinMode(SWITCH, INPUT); // this pin is an INPUT		pinMode(SWITCH, INPUT); // this pin is an INPUT
	~~Serial.println("Button test:");~~
	TCNT1 = 0x00;		TCNT1 = 0x00;
	TCCR1B = 0x07; // timer1 clock = external clock source on pin T1, rising edge		TCCR1B = 0x07; // timer1 clock = external clock source on pin T1, rising edge

			Serial.begin(9600);
			Serial.println("Button test:");
	}		}

Balogh na 09:24, 13. október 2010

2010-10-13T09:24:50Z

← Staršia verzia		Verzia z 09:24, 13. október 2010
Riadok 29:		Riadok 29:

	</source>		</source>

			[[Obrázok:AVR Timer T1 Counter.png\|center]]

Balogh: Nová stránka: Tento program pouzije D5 (arduino) ako pocitadlo. Mozne pripojit tlacitko, alebo 555 a pocitat pocet impulzov. Vstavany terminal Arduina nema formatovanie, takze treba pouzit iny te...

2010-10-12T12:32:29Z

Nová stránka: Tento program pouzije D5 (arduino) ako pocitadlo. Mozne pripojit tlacitko, alebo 555 a pocitat pocet impulzov. Vstavany terminal Arduina nema formatovanie, takze treba pouzit iny te...

Nová stránka

Tento program pouzije D5 (arduino) ako pocitadlo.
Mozne pripojit tlacitko, alebo 555 a pocitat pocet impulzov.

Vstavany terminal Arduina nema formatovanie, takze treba pouzit
iny terminal aby sa to pekne vypisovalo:

<source lang="c">
#define SWITCH 5 // select the pin for Switch

void setup()
{
Serial.begin(9600);
pinMode(SWITCH, INPUT); // this pin is an INPUT
Serial.println("Button test:");
TCNT1 = 0x00;
TCCR1B = 0x07; // timer1 clock = external clock source on pin T1, rising edge
}

void loop() // endless loop
{
Serial.print("Input D5 = ");
Serial.print(digitalRead(SWITCH),BIN);
Serial.print(" TCNT1 = ");
Serial.print(TCNT1,DEC);
Serial.print('\r'); // nefunguje so vstavanym,
// ale je OK s putty terminalom
delay(250); // wait 1/4s for another
}

</source>