systick.h 3.0 KB

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  1. //*****************************************************************************
  2. //
  3. // systick.h
  4. //
  5. // Prototypes for the SysTick driver.
  6. //
  7. // Copyright (C) 2014 Texas Instruments Incorporated - http://www.ti.com/
  8. //
  9. //
  10. // Redistribution and use in source and binary forms, with or without
  11. // modification, are permitted provided that the following conditions
  12. // are met:
  13. //
  14. // Redistributions of source code must retain the above copyright
  15. // notice, this list of conditions and the following disclaimer.
  16. //
  17. // Redistributions in binary form must reproduce the above copyright
  18. // notice, this list of conditions and the following disclaimer in the
  19. // documentation and/or other materials provided with the
  20. // distribution.
  21. //
  22. // Neither the name of Texas Instruments Incorporated nor the names of
  23. // its contributors may be used to endorse or promote products derived
  24. // from this software without specific prior written permission.
  25. //
  26. // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  27. // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  28. // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  29. // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  30. // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  31. // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  32. // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  33. // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  34. // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  35. // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  36. // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  37. //
  38. //*****************************************************************************
  39. #ifndef __SYSTICK_H__
  40. #define __SYSTICK_H__
  41. //*****************************************************************************
  42. //
  43. // If building with a C++ compiler, make all of the definitions in this header
  44. // have a C binding.
  45. //
  46. //*****************************************************************************
  47. #ifdef __cplusplus
  48. extern "C"
  49. {
  50. #endif
  51. //*****************************************************************************
  52. //
  53. // Prototypes for the APIs.
  54. //
  55. //*****************************************************************************
  56. extern void SysTickEnable(void);
  57. extern void SysTickDisable(void);
  58. extern void SysTickIntRegister(void (*pfnHandler)(void));
  59. extern void SysTickIntUnregister(void);
  60. extern void SysTickIntEnable(void);
  61. extern void SysTickIntDisable(void);
  62. extern void SysTickPeriodSet(unsigned long ulPeriod);
  63. extern unsigned long SysTickPeriodGet(void);
  64. extern unsigned long SysTickValueGet(void);
  65. //*****************************************************************************
  66. //
  67. // Mark the end of the C bindings section for C++ compilers.
  68. //
  69. //*****************************************************************************
  70. #ifdef __cplusplus
  71. }
  72. #endif
  73. #endif // __SYSTICK_H__