arduino: src/hello.c@dfe67409fbcd (annotated)

47 7f930a94ee1e bravely step into the modern world of C-programming, using avr-gcc for a hello world... Tero Marttila <terom@paivola.fi> parents: diff changeset	1	#include <avr/io.h>
49 f01fb659e54d hello: timer-based sleeps Tero Marttila <terom@paivola.fi> parents: 47 diff changeset	2
52 237d1f5c1c32 hello: split out timer; add serial Tero Marttila <terom@paivola.fi> parents: 50 diff changeset	3	#include "stdlib.h"
237d1f5c1c32 hello: split out timer; add serial Tero Marttila <terom@paivola.fi> parents: 50 diff changeset	4	#include "timer.c" // XXX
237d1f5c1c32 hello: split out timer; add serial Tero Marttila <terom@paivola.fi> parents: 50 diff changeset	5	#include "serial.c" // XXX
47 7f930a94ee1e bravely step into the modern world of C-programming, using avr-gcc for a hello world... Tero Marttila <terom@paivola.fi> parents: diff changeset	6
7f930a94ee1e bravely step into the modern world of C-programming, using avr-gcc for a hello world... Tero Marttila <terom@paivola.fi> parents: diff changeset	7	int main (void)
7f930a94ee1e bravely step into the modern world of C-programming, using avr-gcc for a hello world... Tero Marttila <terom@paivola.fi> parents: diff changeset	8	{
49 f01fb659e54d hello: timer-based sleeps Tero Marttila <terom@paivola.fi> parents: 47 diff changeset	9	timer_init();
52 237d1f5c1c32 hello: split out timer; add serial Tero Marttila <terom@paivola.fi> parents: 50 diff changeset	10	serial_init();
49 f01fb659e54d hello: timer-based sleeps Tero Marttila <terom@paivola.fi> parents: 47 diff changeset	11
47 7f930a94ee1e bravely step into the modern world of C-programming, using avr-gcc for a hello world... Tero Marttila <terom@paivola.fi> parents: diff changeset	12	// LED
49 f01fb659e54d hello: timer-based sleeps Tero Marttila <terom@paivola.fi> parents: 47 diff changeset	13	sbi(&DDRB, DDB5);
f01fb659e54d hello: timer-based sleeps Tero Marttila <terom@paivola.fi> parents: 47 diff changeset	14
f01fb659e54d hello: timer-based sleeps Tero Marttila <terom@paivola.fi> parents: 47 diff changeset	15	sei();
f01fb659e54d hello: timer-based sleeps Tero Marttila <terom@paivola.fi> parents: 47 diff changeset	16
f01fb659e54d hello: timer-based sleeps Tero Marttila <terom@paivola.fi> parents: 47 diff changeset	17	// blink
52 237d1f5c1c32 hello: split out timer; add serial Tero Marttila <terom@paivola.fi> parents: 50 diff changeset	18	char c = 'X';
53 dfe67409fbcd hello: interruptable timer sleep, with buffered serial IO Tero Marttila <terom@paivola.fi> parents: 52 diff changeset	19	short timeout = 8000;
49 f01fb659e54d hello: timer-based sleeps Tero Marttila <terom@paivola.fi> parents: 47 diff changeset	20	short delta = 10;
47 7f930a94ee1e bravely step into the modern world of C-programming, using avr-gcc for a hello world... Tero Marttila <terom@paivola.fi> parents: diff changeset	21
7f930a94ee1e bravely step into the modern world of C-programming, using avr-gcc for a hello world... Tero Marttila <terom@paivola.fi> parents: diff changeset	22	while (true) {
53 dfe67409fbcd hello: interruptable timer sleep, with buffered serial IO Tero Marttila <terom@paivola.fi> parents: 52 diff changeset	23	// toggle
49 f01fb659e54d hello: timer-based sleeps Tero Marttila <terom@paivola.fi> parents: 47 diff changeset	24	xbi(&PORTB, PORTB5);
47 7f930a94ee1e bravely step into the modern world of C-programming, using avr-gcc for a hello world... Tero Marttila <terom@paivola.fi> parents: diff changeset	25
53 dfe67409fbcd hello: interruptable timer sleep, with buffered serial IO Tero Marttila <terom@paivola.fi> parents: 52 diff changeset	26	// sleep
dfe67409fbcd hello: interruptable timer sleep, with buffered serial IO Tero Marttila <terom@paivola.fi> parents: 52 diff changeset	27	if (timer_sleep(timeout)) {
dfe67409fbcd hello: interruptable timer sleep, with buffered serial IO Tero Marttila <terom@paivola.fi> parents: 52 diff changeset	28	c = '.';
dfe67409fbcd hello: interruptable timer sleep, with buffered serial IO Tero Marttila <terom@paivola.fi> parents: 52 diff changeset	29
dfe67409fbcd hello: interruptable timer sleep, with buffered serial IO Tero Marttila <terom@paivola.fi> parents: 52 diff changeset	30	} else if ((c = serial_read())) {
dfe67409fbcd hello: interruptable timer sleep, with buffered serial IO Tero Marttila <terom@paivola.fi> parents: 52 diff changeset	31	// got serial data
dfe67409fbcd hello: interruptable timer sleep, with buffered serial IO Tero Marttila <terom@paivola.fi> parents: 52 diff changeset	32	} else {
dfe67409fbcd hello: interruptable timer sleep, with buffered serial IO Tero Marttila <terom@paivola.fi> parents: 52 diff changeset	33	c = '?';
dfe67409fbcd hello: interruptable timer sleep, with buffered serial IO Tero Marttila <terom@paivola.fi> parents: 52 diff changeset	34	}
49 f01fb659e54d hello: timer-based sleeps Tero Marttila <terom@paivola.fi> parents: 47 diff changeset	35
53 dfe67409fbcd hello: interruptable timer sleep, with buffered serial IO Tero Marttila <terom@paivola.fi> parents: 52 diff changeset	36	// output...
dfe67409fbcd hello: interruptable timer sleep, with buffered serial IO Tero Marttila <terom@paivola.fi> parents: 52 diff changeset	37	serial_write(c);
47 7f930a94ee1e bravely step into the modern world of C-programming, using avr-gcc for a hello world... Tero Marttila <terom@paivola.fi> parents: diff changeset	38	}
7f930a94ee1e bravely step into the modern world of C-programming, using avr-gcc for a hello world... Tero Marttila <terom@paivola.fi> parents: diff changeset	39	}

author	Tero Marttila <terom@paivola.fi>
	Thu, 03 Apr 2014 20:25:12 +0300
changeset 53	dfe67409fbcd
parent 52	237d1f5c1c32
child 54	ec42f36d8614
permissions	-rw-r--r--