/**
* Parse and then execute the "S" command from the user, which sets the time.
*/
void command_set(char *command)
{
uint8_t rc;
rtc_datetime_24h_t dt;
rc = rtc_clock_stop(rtc);
printf_P(PSTR("Halted clock, rc=%i\n"), rc);
rtc_sqw_enable(rtc);
rtc_sqw_rate(rtc, 1);
rc = rtc_read(rtc, &dt);
sscanf_P(command,
PSTR("S %04d-%02hhd-%02hhd %02hhd:%02hhd:%02hhd\n"),
&dt.year, &dt.month, &dt.date,
&dt.hour, &dt.minute, &dt.second);
dt.day_of_week = rtc_find_dow(dt.year, dt.month, dt.date);
printf_P(PSTR("Setting time to %04i-%02i-%02i %02i:%02i:%02i (%s)\n"),
dt.year, dt.month, dt.date,
dt.hour, dt.minute, dt.second,
rtc_dow_names[dt.day_of_week]);
printf_P(PSTR("Trying to write RTC...\n"));
rc = rtc_write(rtc, &dt);
printf_P(PSTR("Wrote RTC, rc=%i\n"), rc);
rc = rtc_clock_start(rtc);
printf_P(PSTR("Started clock, rc=%i\n"), rc);
}
/**
* MCU: Atmega328
* Fuses: Oscilador interno a 8 Mhz (sin dividir por 8)
* -U lfuse:w:0xe2:m -U hfuse:w:0xd1:m -U efuse:w:0x07:m
*/
int main(void) {
adc_init();
timer0_init(timer0_callback);
i2c_init();
rtc_init(rtc);
rtc_sqw_rate(rtc, 1);
rtc_sqw_enable(rtc);
rtc_clock_start(rtc);
eMBInit(MB_RTU, 0x03, 0, 9600, MB_PAR_NONE);
eMBSetSlaveID(0x3, TRUE, (UCHAR*) "demeter", 8);
eMBEnable();
blinkenlight(5, 100);
parameters_init();
ports_init();
f_mount(&fs, "", 0);
update_log_filename();
while (1) {
eMBPoll();
update_state();
_delay_ms(100);
}
return (0);
}
int main(void)
{
uart_t *u0;
uint8_t rc;
rtc_device_t *rtc = &rtc_ds1307;
rtc_datetime_24h_t current_dt, offset_dt;
_delay_ms(1000);
u0 = uart_init("0", UART_BAUD_SELECT(38400, F_CPU));
uart_init_stdout(u0);
i2c_init();
DDRC = _BV(PC0) | _BV(PC1);
PORTC = _BV(PC0) | _BV(PC1);
sei();
printf("\n\nBooted up!\n");
rc = rtc_init(rtc);
printf("Inited RTC, rc=%i\n", rc);
rc = rtc_sqw_rate(rtc, 1);
printf("Set sqw rate, rc=%i\n", rc);
rc = rtc_sqw_enable(rtc);
printf("Set sqw enable, rc=%i\n", rc);
rc = rtc_clock_start(rtc);
printf("Started clock, rc=%i\n", rc);
_delay_ms(1000);
while(1)
{
rc = rtc_read(rtc, ¤t_dt);
rtc_offset_time(¤t_dt, &offset_dt, -7);
printf("rc = %i, %04i-%02i-%02i %02i:%02i:%02i %i offset: %04i-%02i-%02i %02i:%02i:%02i %i\n",
rc,
current_dt.year, current_dt.month, current_dt.date,
current_dt.hour, current_dt.minute, current_dt.second,
current_dt.day_of_week,
offset_dt.year, offset_dt.month, offset_dt.date,
offset_dt.hour, offset_dt.minute, offset_dt.second,
offset_dt.day_of_week
);
_delay_ms(1000);
}
return(0);
}
void command_set_from_gps(void)
{
uint8_t rc;
if(update_gps())
return;
if(gps_data.gps_signal_strength < 3)
{
printf_P(PSTR("GPS signal strength (%d) is unreliable. Aborting sync!\n"),
gps_data.gps_signal_strength);
return;
}
if(gps_data.dt.second < (59 - gps_leap_second_offset))
{
/* Adjust to the edge of the next second, don't deal with rollover */
printf_P(PSTR("Sleeping for %d ms to synchronize...\n"),
1000 - gps_data.dt.millisecond - 1);
wait_ms(1000 - gps_data.dt.millisecond - 1);
gps_data.dt.second += 1 + gps_leap_second_offset;
gps_data.dt.millisecond = 0;
}
rc = rtc_clock_stop(rtc);
printf_P(PSTR("Halted clock, rc=%i\n"), rc);
rtc_sqw_enable(rtc);
rtc_sqw_rate(rtc, 1);
printf_P(PSTR("Setting time to %04i-%02i-%02i %02i:%02i:%02i (%s)\n"),
gps_data.dt.year, gps_data.dt.month, gps_data.dt.date,
gps_data.dt.hour, gps_data.dt.minute, gps_data.dt.second,
rtc_dow_names[gps_data.dt.day_of_week]);
printf_P(PSTR("Trying to write RTC...\n"));
rc = rtc_write(rtc, &gps_data.dt);
printf_P(PSTR("Wrote RTC, rc=%i\n"), rc);
rc = rtc_clock_start(rtc);
printf_P(PSTR("Started clock, rc=%i\n"), rc);
}
