// Plays the loser sounds
inline void play_loser(void) {
uint8_t i;
for (i = 0; i < 4; i++) {
set_leds((i & 1) ? (LED2 | LED3) : (LED0 | LED1));
buzzer_wait(FREQLEN2TONECNT(333.33, 250));
}
}
// Generates button tone and highlights the corresponding button
void button_tone(uint8_t button) {
set_leds(_BV(button)); // Turn on button led
uint16_t *btc = &BUTTONS[2 * button]; // Pointer to BTC entry for the button
buzzer_wait(*btc, *(btc + 1));
set_leds(0); // Turn off all LEDs
}
int app_main (void)
{
long timer1 = 0;
eParseResult parse_result;
buzzer_init();
buzzer_play(1500, 100); /* low beep */
buzzer_wait();
buzzer_play(2500, 200); /* high beep */
init();
read_config();
// grbl init
plan_init();
st_init();
// main loop
for (;;)
{
// process characters from the serial port
while (!serial_line_buf.seen_lf && (serial_rxchars() != 0) )
{
unsigned char c = serial_popchar();
if (serial_line_buf.len < MAX_LINE)
serial_line_buf.data [serial_line_buf.len++] = c;
if ((c==10) || (c==13))
{
if (serial_line_buf.len > 1)
serial_line_buf.seen_lf = 1;
else
serial_line_buf.len = 0;
}
}
// process SD file if no serial command pending
if (!sd_line_buf.seen_lf && sd_printing)
{
if (sd_read_file (&sd_line_buf))
{
sd_line_buf.seen_lf = 1;
}
else
{
sd_printing = false;
serial_writestr ("Done printing file\r\n");
}
}
// if queue is full, we wait
if (!plan_queue_full())
{
/* At end of each line, put the "GCode" on movebuffer.
* If there are movement to do, Timer will start and execute code which
* will take data from movebuffer and generate the required step pulses
* for stepper motors.
*/
// give priority to user commands
if (serial_line_buf.seen_lf)
{
parse_result = gcode_parse_line (&serial_line_buf);
serial_line_buf.len = 0;
serial_line_buf.seen_lf = 0;
}
else if (sd_line_buf.seen_lf)
{
parse_result = gcode_parse_line (&sd_line_buf);
sd_line_buf.len = 0;
sd_line_buf.seen_lf = 0;
}
}
/* Do every 100ms */
#define DELAY1 100
if (timer1 < millis())
{
timer1 = millis() + DELAY1;
/* If there are no activity during 30 seconds, power off the machine */
if (steptimeout > (30 * 1000/DELAY1))
{
power_off();
}
else
{
steptimeout++;
}
}
#ifdef USE_BOOT_BUTTON
// OPTION: enter bootloader on "Boot" button
check_boot_request();
#endif
}
}
