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add attiny2313 hello world

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agh 2020-12-03 15:32:43 +01:00
parent b8b860c84d
commit 84c6ad9ac0
2 changed files with 25 additions and 0 deletions
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9
attiny2313/Makefile Executable file
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#/bin/bash
#avr-gcc -std=c99 -Os -Wall -mmcu=attiny2313 -S -o hello.s hello.c
#avr-gcc -Os -Wall -mmcu=attiny2313 -c -o hello.o hello.s
#avr-gcc -Os -Wall -mmcu=attiny2313 -o hello.out hello.o
#avr-strip hello.out
avr-gcc -Os -std=c99 -Wall -mmcu=attiny2313 -o hello.out hello.c
avr-strip hello.out

16
attiny2313/hello.c Normal file
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#define F_CPU 1000000UL
#include <avr/io.h>
#include <util/delay.h>
int main() {
uint8_t x = 0b00000001;
DDRB = 0b00000001;
PORTB = 0b00000000;
while (1) {
x = (!DDRB && (x)) || (DDRB && (!x));
PORTB = x;
_delay_ms(1000);
}
return(0);
}