max31855.c 1.8 KB

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  1. /*
  2. * max31855.c:
  3. * SPI Thermocouple interface chip
  4. *
  5. * Copyright (c) 2015 Gordon Henderson.
  6. ***********************************************************************
  7. * This file is part of wiringPi:
  8. * https://projects.drogon.net/raspberry-pi/wiringpi/
  9. *
  10. * wiringPi is free software: you can redistribute it and/or modify
  11. * it under the terms of the GNU Lesser 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. * wiringPi 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 Lesser General Public License for more details.
  19. *
  20. * You should have received a copy of the GNU Lesser General Public License
  21. * along with wiringPi. If not, see <http://www.gnu.org/licenses/>.
  22. ***********************************************************************
  23. */
  24. #include <stdio.h>
  25. #include <stdlib.h>
  26. #include <stdint.h>
  27. #include <string.h>
  28. #include <time.h>
  29. #include <wiringPi.h>
  30. #include <max31855.h>
  31. int main (int argc, char *argv [])
  32. {
  33. int i = 0 ;
  34. wiringPiSetup () ;
  35. max31855Setup (200, 0) ;
  36. max31855Setup (400, 1) ;
  37. for (;;)
  38. {
  39. if (i == 0)
  40. {
  41. printf ("+------+------+------+------++------+------+------+------+\n") ;
  42. printf ("| Raw | Err | C | F || Raw | Err | C | F |\n") ;
  43. printf ("+------+------+------+------++------+------+------+------+\n") ;
  44. }
  45. printf ("| %4d | %4d | %4d | %4d |", analogRead (200), analogRead (201), analogRead (202), analogRead (203)) ;
  46. printf ("| %4d | %4d | %4d | %4d |\n", analogRead (400), analogRead (401), analogRead (402), analogRead (403)) ;
  47. delay (500) ;
  48. if (++i == 10)
  49. i = 0 ;
  50. }
  51. }