FreeBSD 11.0 -- ATmega32 blink LED

README.md

FreeBSD 11.0 -- ATmega32 blink LED

1. Connect the Sparkfun AVR Pocket Programmer via USB to the FreeBSD 11.0 computer.
2. Connect the Sparkfun AVR Pocket Programmer to the ATmega32 using a breadboard, the AVR Programming Cable and some jumper wires.
3. Connect the positive lead of the 2V LED in series with a 330 ohm resistor to pin 0 of the ATmega32.
4. Connect the negative lead of the 2V LED to ground.
5. In the directory of the attached file blink.c, run the following commands.

doas pkg install avr-gcc avr-libc avrdude

avr-gcc -O2 -mmcu=atmega32 blink.c -o blink.elf

doas avrdude -c usbtiny -p atmega32 -U flash:w:blink.elf

Video

Click the image above to view the video on YouTube.

blink.c

#include <avr/io.h>

#define F_CPU 1000000UL

#include <util/delay.h>

int main(void)
{
	DDRB |= 1 << PINB0;

	while (1)
	{
		PORTB ^= 1 << PINB0;
		_delay_ms(100);
	}
}