Simple single-color 8x8x8 LED Cube with AVRs
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main.c 1.9KB

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  1. /*
  2. * main.c
  3. *
  4. * Copyright 2011 Thomas Buck <xythobuz@me.com>
  5. * Copyright 2011 Max Nuding <max.nuding@gmail.com>
  6. * Copyright 2011 Felix Bäder <baeder.felix@gmail.com>
  7. *
  8. * This file is part of LED-Cube.
  9. *
  10. * LED-Cube is free software: you can redistribute it and/or modify
  11. * it under the terms of the GNU General Public License as published by
  12. * the Free Software Foundation, either version 3 of the License, or
  13. * (at your option) any later version.
  14. *
  15. * LED-Cube is distributed in the hope that it will be useful,
  16. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  18. * GNU General Public License for more details.
  19. *
  20. * You should have received a copy of the GNU General Public License
  21. * along with LED-Cube. If not, see <http://www.gnu.org/licenses/>.
  22. */
  23. #include <stdlib.h>
  24. #include <stdint.h>
  25. #include <avr/io.h>
  26. #include <util/delay.h>
  27. #include <avr/wdt.h>
  28. #include "adc.h"
  29. #include "eq.h"
  30. #include "twislave.h"
  31. #ifndef F_CPU
  32. #define F_CPU 16000000L
  33. #endif
  34. void blinkStatus(void) {
  35. PORTB |= (1 << PB2);
  36. PORTB &= ~(1 << PB1);
  37. _delay_ms(250);
  38. PORTB &= ~(1 << PB2);
  39. PORTB |= (1 << PB1);
  40. _delay_ms(250);
  41. }
  42. int main(void) {
  43. uint8_t *music;
  44. MCUCSR = 0;
  45. wdt_disable();
  46. DDRB = 6;
  47. DDRC = 12;
  48. DDRD = 0;
  49. twiInit(0x42); // All TWI action happens completely in the background.
  50. adcInit();
  51. equalizerInit();
  52. blinkStatus();
  53. blinkStatus();
  54. wdt_enable(WDTO_500MS); // Enable watchdog reset after 500ms
  55. music = equalizerGet();
  56. twiSetDataToSend(music);
  57. free(music);
  58. while (1) {
  59. if (twiDataWasSent()) {
  60. PORTB ^= (1 << PB2); // Toggle for every transaction
  61. music = equalizerGet();
  62. twiSetDataToSend(music);
  63. free(music);
  64. }
  65. // Heartbeat
  66. PORTB ^= (1 << PB1);
  67. _delay_ms(1); // Everything locks if this is removed :(
  68. // still don't know why...
  69. wdt_reset();
  70. }
  71. return 0;
  72. }