2024-06-13 19:21:56 +00:00
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Cut and paste the following into a file called LED_Demo.c
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/* Blinker Demo */
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#include <avr/io.h> /* Defines pins, ports, etc */
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#define F_CPU 8000000UL /* Sets up the chip speed for delay.h */
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#include <util/delay.h> /* Functions to waste time */
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#define LED PB0 /* Defines pin PB0 for the LED. I
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often include a bunch of the circuit
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info in the code this way, which
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makes porting the code to another
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chip easier and reminds you of how to
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hook it up. */
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void main(void){
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DDRB = _BV(LED); /* Data Direction Register B:
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writing a one to the bit
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enables output. More on the
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_BV() macro in the next
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lesson. */
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while(1){ /* the main loop, from which we never return */
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PORTB = _BV(LED); /* Turn on the LED bit/pin in PORTB */
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_delay_ms(400); /* wait */
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PORTB = 0; /* Turn off everything(!) on PORTB */
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_delay_ms(400); /* wait */
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}
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}
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2024-06-13 01:48:44 +00:00
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[Category:Microcontrollers](Category:Microcontrollers "wikilink")
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