static int8_t
ow_record_temp(uint8_t dummy __attribute__((unused)))
{
char *p, *q;
uint16_t tu;
int16_t t = (int16_t)((uint16_t)ow_read_buf[0] | ((uint16_t)(ow_read_buf[1]) << 8)) / 2;
int8_t count_remain = ow_read_buf[6];
int16_t t_16 = 16*t - count_remain + (16 - 4);
p= last_temp_buf;
if (t_16 < 0)
{
*p++ = '-';
tu= (uint16_t)0 - (uint16_t)t_16;
}
else
tu= (uint16_t)t_16;
p= sprint_uint16_b10(p, tu/16);
*p++ = '.';
q= sprint_uint16_b10(p, tu%16*(10000/16));
p+= 4;
while (q < p)
*q++ = '0';
*p= '\0';
/* Schedule a new temperature measurement in a bit. */
reset_cmds(ow_cmds_read_temp_simple);
ow_delay_ms(250);
/*
Hack: return error; this way we avoid updating the cmd counter after
return, which would cause us to skip the first step of the second round.
*/
return -1;
}
main(void)
{
serial_baud_9600();
serial_mode_8e1();
serial_transmitter_enable();
sleep_mode_idle();
/* setup timer2 to trigger interrupt a
* once every millisecond
* 128 * (124 + 1) / 16MHz = 1ms */
timer2_mode_ctc();
timer2_clock_d128();
timer2_compare_a_set(124);
timer2_interrupt_a_enable();
adc_reference_internal_5v();
adc_pin_select(5);
adc_clock_d128();
adc_trigger_freerunning();
adc_trigger_enable();
adc_interrupt_enable();
adc_enable();
sei();
while (1) {
char *p;
p = sprint_uint16_b10(buf, value);
*p++ = '\n';
*p = '\0';
serial_puts(buf);
}
}
main()
{
pin13_mode_output();
serial_baud_9600();
serial_mode_8e1();
serial_transmitter_enable();
sleep_mode_idle();
/* setup timer2 to trigger interrupt a
* once every millisecond */
timer2_mode_ctc();
timer2_compare_a_set(124);
timer2_clock_d128();
timer2_interrupt_a_enable();
sei();
while (1) {
uint16_t now = time;
if (now >= 6000) {
char *p;
timer2_clock_reset();
time = 0;
p = sprint_uint16_b10(buf, now);
*p++ = '\n';
*p = '\0';
serial_puts(buf);
}
sleep_enable();
sleep_cpu();
sleep_disable();
}
}
main()
{
uint8_t state = 0;
serial_baud_9600();
serial_mode_8e1();
serial_transmitter_enable();
sleep_mode_idle();
pin13_mode_output();
pin13_low();
/* setup timer2 to trigger interrupt a
* once every millisecond
* 128 * (124 + 1) / 16MHz = 1ms */
timer2_mode_ctc();
timer2_clock_d128();
timer2_compare_a_set(124);
timer2_interrupt_a_enable();
adc_reference_internal_5v();
adc_pin_select(5);
adc_clock_d128();
adc_trigger_freerunning();
adc_trigger_enable();
adc_interrupt_enable();
adc_enable();
sei();
while (1) {
uint16_t value;
cli();
if (!new_value) {
sleep_enable();
sei();
sleep_cpu();
sleep_disable();
continue;
}
sei();
value = adc_data();
new_value = 0;
if (state && value < BOUND_LOW) {
uint16_t now = time;
char *p;
timer2_clock_reset();
time = 0;
pin13_low();
p = sprint_uint16_b10(buf, now);
*p++ = '\n';
*p = '\0';
serial_puts(buf);
state = 0;
continue;
}
if (value > BOUND_HIGH) {
pin13_high();
state = 1;
}
}
}
