Williamgibb at 05:14, 2 March 2011

2011-03-02T05:14:10Z

← Older revision		Revision as of 05:14, 2 March 2011
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	</pre>		</pre>

			[[Category:Microcontrollers]]

Hexagon5un: Created page with "Cut and paste the following into a file called LED_Demo.c

 /* Blinker Demo */  #include 		/* Defines pins, ports, etc */ #define F_CPU 8000000UL	        /* Sets u..."

2011-03-01T04:34:59Z

Created page with "Cut and paste the following into a file called LED_Demo.c <pre> Blinker Demo: #include <avr/io.h> Defines pins, ports, etc: #define F_CPU 8000000UL /* Sets u..."

New page

Cut and paste the following into a file called LED_Demo.c

<pre>
/* Blinker Demo */

#include <avr/io.h> /* Defines pins, ports, etc */
#define F_CPU 8000000UL /* Sets up the chip speed for delay.h */
#include <util/delay.h> /* Functions to waste time */

#define LED PB0 /* Defines pin PB0 for the LED. I
often include a bunch of the circuit
info in the code this way, which
makes porting the code to another
chip easier and reminds you of how to
hook it up. */

void main(void){

DDRB = _BV(LED); /* Data Direction Register B:
writing a one to the bit
enables output. More on the
_BV() macro in the next
lesson. */

while(1){ /* the main loop, from which we never return */

PORTB = _BV(LED); /* Turn on the LED bit/pin in PORTB */
_delay_ms(400); /* wait */

PORTB = 0; /* Turn off everything(!) on PORTB */
_delay_ms(400); /* wait */

}
}

</pre>

Avr2011 LED Demo.c - Revision history

Williamgibb at 05:14, 2 March 2011

Hexagon5un: Created page with "Cut and paste the following into a file called LED_Demo.c
/* Blinker Demo / #include / Defines pins, ports, etc / #define F_CPU 8000000UL / Sets u..."