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1 | /* $Id: main.c,v 1.1 2010/06/26 12:28:08 simimeie Exp $ |
2 | * Main file for the HaWo moodlight. |
3 | * This is the main file that glues it all together. It also contains all |
4 | * functionality that is too small to require an extra file. |
5 | * (C) Michael "Fox" Meier 2010 |
6 | */ |
7 | |
8 | #include <avr/io.h> |
9 | #include <avr/interrupt.h> |
10 | #include <avr/wdt.h> |
11 | #include <avr/eeprom.h> |
12 | #include <avr/power.h> |
13 | #include <avr/sleep.h> |
14 | #include <stdio.h> |
15 | #include <string.h> |
16 | #include <util/delay.h> |
17 | |
18 | #include "console.h" |
19 | /* #include "eepromdata.h" */ |
20 | |
21 | uint8_t mcusr_mirror __attribute__ ((section (".noinit"))); |
22 | |
23 | /* This is needed to recover from a watchdog reset, as the watchdog |
24 | * stays active after the reset. |
25 | * The variable is just to make the reason of the last reset accessible |
26 | * later. */ |
27 | void get_mcusr(void) __attribute__((naked)) __attribute__((section(".init3"))); |
28 | void get_mcusr(void) { |
29 | mcusr_mirror = MCUSR; |
30 | MCUSR = 0; |
31 | wdt_disable(); |
32 | } |
33 | |
34 | int main(void) |
35 | { |
36 | uint8_t i; |
37 | |
38 | /* Load settings from EEPROM */ |
39 | #if 0 |
40 | something = eeprom_read_byte(&ee_something); |
41 | #endif /* LEDMODULE */ |
42 | |
43 | /* Initialize stuff */ |
44 | console_init(); |
45 | |
46 | wdt_enable(WDTO_2S); |
47 | |
48 | /* Prepare sleep mode */ |
49 | //set_sleep_mode(SLEEP_MODE_IDLE); |
50 | //sleep_enable(); |
51 | |
52 | /* All set up, enable interrupts and go. */ |
53 | sei(); |
54 | |
55 | if (mcusr_mirror & _BV(WDRF)) { |
56 | console_printpgm_P(PSTR("NOTE: last reset was from Watchdog Timer.")); |
57 | } |
58 | if (mcusr_mirror & _BV(BORF)) { |
59 | console_printpgm_P(PSTR("NOTE: last reset was from Brownout.")); |
60 | } |
61 | |
62 | while (1) { /* We should never exit */ |
63 | wdt_reset(); |
64 | } |
65 | } |