Simple single-color 8x8x8 LED Cube with AVRs
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  1. /*
  2. * lookUp.c
  3. *
  4. * Copyright 2012 Thomas Buck <xythobuz@me.com>
  5. *
  6. * This file is part of LED-Cube.
  7. *
  8. * LED-Cube is free software: you can redistribute it and/or modify
  9. * it under the terms of the GNU General Public License as published by
  10. * the Free Software Foundation, either version 3 of the License, or
  11. * (at your option) any later version.
  12. *
  13. * LED-Cube is distributed in the hope that it will be useful,
  14. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  16. * GNU General Public License for more details.
  17. *
  18. * You should have received a copy of the GNU General Public License
  19. * along with LED-Cube. If not, see <http://www.gnu.org/licenses/>.
  20. */
  21. // Small utility to create a look up table for CubeFirmware.
  22. // This is needed for our second cube, because we mirrored the connection cable.
  23. #include <stdio.h>
  24. int flip(int d) {
  25. int n;
  26. int converted = 0;
  27. for (n = 0; n < 8; n++) {
  28. if (d & (1 << (7 - n))) {
  29. converted |= (1 << n);
  30. }
  31. }
  32. return converted;
  33. }
  34. int flipAdjacent(int d) {
  35. int n;
  36. int converted = 0;
  37. for (n = 0; n < 7; n+= 2) {
  38. if (d & (1 << n)) {
  39. converted |= (1 << (n + 1));
  40. } else {
  41. converted &= ~(1 << (n + 1));
  42. }
  43. if (d & (1 << (n + 1))) {
  44. converted |= (1 << n);
  45. } else {
  46. converted &= ~(1 << n);
  47. }
  48. }
  49. return converted;
  50. }
  51. int main() {
  52. int byte;
  53. printf("uint8_t lookUp[256] = {");
  54. for (byte = 0; byte < 256; byte++) {
  55. printf(" %d", flipAdjacent(flip(byte));
  56. if (((byte % 10) == 0) && (byte > 0)) {
  57. printf(",\n");
  58. } else if (byte < 255) {
  59. printf(", ");
  60. }
  61. }
  62. printf(" }\n");
  63. return 0;
  64. }