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  1. #include <stdio.h>
  2. #include <stdint.h>
  3. #define POLY_PWM_PERIOD (1500)
  4. int main(void) {
  5. 	// your code goes here
  6. 	// for (int i = 0; i > -1 << 31; i--)
  7. 	// {
  8. 	//     int rate = i;
  9. 	//     // int32_t phaseAccumEL += rate;
  10. 	//     int32_t phaseAccumEL = rate;
  11. 	//     const int adjustEL = phaseAccumEL / (1 << 24);
  12. 	//     uint32_t phase_accum_el_uint = phaseAccumEL;
  13. 	//     phase_accum_el_uint &= (1 << 24) - 1;
  14. 	//     phaseAccumEL = phase_accum_el_uint;
  15. 	//     uint32_t el_period = POLY_PWM_PERIOD - adjustEL;
  16.  
  17. 	//     // int32_t phaseAccumAZ += rate;
  18. 	//     int32_t phaseAccumAZ = rate;
  19. 	//     const int adjustAZ = phaseAccumAZ / (1 << 25);
  20. 	//     uint32_t phase_accum_az_uint = phaseAccumAZ;
  21. 	//     phase_accum_az_uint &= (1 << 25) - 1;
  22. 	//     phaseAccumAZ = phase_accum_az_uint;
  23. 	//     uint32_t az_period = (POLY_PWM_PERIOD / 2) - adjustAZ;
  24. 	//     if (el_period / 2 != az_period)
  25. 	//     {
  26. 	//     	printf("Period mismatch, AZ=%u, EL=%u, rate=%d, adjustAz=%d, adjustEl=%d\n", az_period, el_period, rate, adjustAZ, adjustEL);
  27. 	//     	phaseAccumAZ += rate;
  28. 	//     	const int adjustAZ_2 = phaseAccumAZ / (1 << 25);
  29. 	//         uint32_t phase_accum_az_uint = phaseAccumAZ;
  30. 	//         phase_accum_az_uint &= (1 << 25) - 1;
  31. 	//         phaseAccumAZ = phase_accum_az_uint;
  32. 	//         uint32_t az_period_2 = (POLY_PWM_PERIOD / 2) - adjustAZ_2;	    	
  33. 	//         printf("az_period_2=%d, adjustAZ_2=%d\n", az_period_2, adjustAZ_2);
  34.  
  35. 	//     }
  36. 	// }
  37. 	    int32_t rate = -252476432;
  38. 	    // int32_t phaseAccumEL += rate;
  39. 	    int32_t phaseAccumEL = 11118352;
  40. 	    phaseAccumEL += rate;
  41. 	    const int32_t adjustEL = phaseAccumEL / (1 << 24);
  42. 	    uint32_t phase_accum_el_uint = phaseAccumEL;
  43. 	    phase_accum_el_uint &= (1 << 24) - 1;
  44. 	    phaseAccumEL = phase_accum_el_uint;
  45. 	    uint32_t el_period = POLY_PWM_PERIOD - adjustEL;
  46.  
  47. 	    // int32_t phaseAccumAZ += rate;
  48. 	    int32_t phaseAccumAZ = 11118352;
  49. 	    phaseAccumAZ += rate;
  50. 	    const int32_t adjustAZ = phaseAccumAZ / (1 << 25);
  51. 	    uint32_t phase_accum_az_uint = phaseAccumAZ;
  52. 	    phase_accum_az_uint &= (1 << 25) - 1;
  53. 	    phaseAccumAZ = phase_accum_az_uint;
  54. 	    uint32_t az_period = (POLY_PWM_PERIOD / 2) - adjustAZ;
  55. 	    if (el_period / 2 != az_period)
  56. 	    {
  57. 	    	printf("Period mismatch, AZ=%u, EL=%u, rate=%d, adjustAz=%d, adjustEl=%d\n", az_period, el_period, rate, adjustAZ, adjustEL);
  58. 	    }
  59. 	    else
  60. 	    {
  61. 	    	printf("AZ=%u, EL=%u, rate=%d, adjustAz=%d, adjustEl=%d, phaseAccumEL=%u, phaseAccumAZ=%u\n", az_period, el_period, rate, adjustAZ, adjustEL, phaseAccumEL, phaseAccumAZ);
  62. 	    }
  63.  
  64.  
  65. 	return 0;
  66. }
  67.  
Success #stdin #stdout 0.01s 5284KB
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Standard input is empty
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AZ=757, EL=1514, rate=-252476432, adjustAz=-7, adjustEl=-14, phaseAccumEL=10300160, phaseAccumAZ=27077376
https://ideone.com/6Eu58U
language:
C (gcc 8.3)
created:
5 days ago
visibility:
public

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