os_tick.h 2.2 KB

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  1. /**************************************************************************//**
  2. * @file os_tick.h
  3. * @brief CMSIS OS Tick header file
  4. * @version V1.0.1
  5. * @date 24. November 2017
  6. ******************************************************************************/
  7. /*
  8. * Copyright (c) 2017-2017 ARM Limited. All rights reserved.
  9. *
  10. * SPDX-License-Identifier: Apache-2.0
  11. *
  12. * Licensed under the Apache License, Version 2.0 (the License); you may
  13. * not use this file except in compliance with the License.
  14. * You may obtain a copy of the License at
  15. *
  16. * www.apache.org/licenses/LICENSE-2.0
  17. *
  18. * Unless required by applicable law or agreed to in writing, software
  19. * distributed under the License is distributed on an AS IS BASIS, WITHOUT
  20. * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  21. * See the License for the specific language governing permissions and
  22. * limitations under the License.
  23. */
  24. #ifndef OS_TICK_H
  25. #define OS_TICK_H
  26. #include <stdint.h>
  27. /// IRQ Handler.
  28. #ifndef IRQHANDLER_T
  29. #define IRQHANDLER_T
  30. typedef void (*IRQHandler_t) (void);
  31. #endif
  32. /// Setup OS Tick timer to generate periodic RTOS Kernel Ticks
  33. /// \param[in] freq tick frequency in Hz
  34. /// \param[in] handler tick IRQ handler
  35. /// \return 0 on success, -1 on error.
  36. int32_t OS_Tick_Setup (uint32_t freq, IRQHandler_t handler);
  37. /// Enable OS Tick timer interrupt
  38. void OS_Tick_Enable (void);
  39. /// Disable OS Tick timer interrupt
  40. void OS_Tick_Disable (void);
  41. /// Acknowledge execution of OS Tick timer interrupt
  42. void OS_Tick_AcknowledgeIRQ (void);
  43. /// Get OS Tick timer IRQ number
  44. /// \return OS Tick IRQ number
  45. int32_t OS_Tick_GetIRQn (void);
  46. /// Get OS Tick timer clock frequency
  47. /// \return OS Tick timer clock frequency in Hz
  48. uint32_t OS_Tick_GetClock (void);
  49. /// Get OS Tick timer interval reload value
  50. /// \return OS Tick timer interval reload value
  51. uint32_t OS_Tick_GetInterval (void);
  52. /// Get OS Tick timer counter value
  53. /// \return OS Tick timer counter value
  54. uint32_t OS_Tick_GetCount (void);
  55. /// Get OS Tick timer overflow status
  56. /// \return OS Tick overflow status (1 - overflow, 0 - no overflow).
  57. uint32_t OS_Tick_GetOverflow (void);
  58. #endif /* OS_TICK_H */