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- /***************************************************************************//**
- * @file
- * @brief Real Time Counter (RTC) peripheral API for EFM32.
- * @author Energy Micro AS
- * @version 1.3.0
- *******************************************************************************
- * @section License
- * <b>(C) Copyright 2010 Energy Micro AS, http://www.energymicro.com</b>
- *******************************************************************************
- *
- * This source code is the property of Energy Micro AS. The source and compiled
- * code may only be used on Energy Micro "EFM32" microcontrollers.
- *
- * This copyright notice may not be removed from the source code nor changed.
- *
- * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Energy Micro AS has no
- * obligation to support this Software. Energy Micro AS is providing the
- * Software "AS IS", with no express or implied warranties of any kind,
- * including, but not limited to, any implied warranties of merchantability
- * or fitness for any particular purpose or warranties against infringement
- * of any proprietary rights of a third party.
- *
- * Energy Micro AS will not be liable for any consequential, incidental, or
- * special damages, or any other relief, or for any claim by any third party,
- * arising from your use of this Software.
- *
- ******************************************************************************/
- #ifndef __EFM32_RTC_H
- #define __EFM32_RTC_H
- #include <stdbool.h>
- #include "efm32.h"
- #ifdef __cplusplus
- extern "C" {
- #endif
- /***************************************************************************//**
- * @addtogroup EFM32_Library
- * @{
- ******************************************************************************/
- /***************************************************************************//**
- * @addtogroup RTC
- * @{
- ******************************************************************************/
- /*******************************************************************************
- ******************************* STRUCTS ***********************************
- ******************************************************************************/
- /** RTC initialization structure. */
- typedef struct
- {
- bool enable; /**< Start counting when init completed. */
- bool debugRun; /**< Counter shall keep running during debug halt. */
- bool comp0Top; /**< Use compare register 0 as max count value. */
- } RTC_Init_TypeDef;
- /** Suggested default config for RTC init structure. */
- #define RTC_INIT_DEFAULT \
- { true, /* Start counting when init done */ \
- false, /* Disable updating during debug halt */ \
- true /* Restart counting from 0 when reaching COMP0 */ \
- }
- /*******************************************************************************
- ***************************** PROTOTYPES **********************************
- ******************************************************************************/
- uint32_t RTC_CompareGet(unsigned int comp);
- void RTC_CompareSet(unsigned int comp, uint32_t value);
- /***************************************************************************//**
- * @brief
- * Get RTC counter value.
- *
- * @return
- * Current RTC counter value.
- ******************************************************************************/
- static __INLINE uint32_t RTC_CounterGet(void)
- {
- return(RTC->CNT);
- }
- void RTC_Enable(bool enable);
- void RTC_FreezeEnable(bool enable);
- void RTC_Init(const RTC_Init_TypeDef *init);
- /***************************************************************************//**
- * @brief
- * Clear one or more pending RTC interrupts.
- *
- * @param[in] flags
- * Pending RTC interrupt source to clear. Use a logical OR combination of
- * valid interrupt flags for the RTC module (RTC_IF_nnn).
- ******************************************************************************/
- static __INLINE void RTC_IntClear(uint32_t flags)
- {
- RTC->IFC = flags;
- }
- /***************************************************************************//**
- * @brief
- * Disable one or more RTC interrupts.
- *
- * @param[in] flags
- * RTC interrupt sources to disable. Use a logical OR combination of
- * valid interrupt flags for the RTC module (RTC_IF_nnn).
- ******************************************************************************/
- static __INLINE void RTC_IntDisable(uint32_t flags)
- {
- RTC->IEN &= ~(flags);
- }
- /***************************************************************************//**
- * @brief
- * Enable one or more RTC interrupts.
- *
- * @note
- * Depending on the use, a pending interrupt may already be set prior to
- * enabling the interrupt. Consider using RTC_IntClear() prior to enabling
- * if such a pending interrupt should be ignored.
- *
- * @param[in] flags
- * RTC interrupt sources to enable. Use a logical OR combination of
- * valid interrupt flags for the RTC module (RTC_IF_nnn).
- ******************************************************************************/
- static __INLINE void RTC_IntEnable(uint32_t flags)
- {
- RTC->IEN |= flags;
- }
- /***************************************************************************//**
- * @brief
- * Get pending RTC interrupt flags.
- *
- * @note
- * The event bits are not cleared by the use of this function.
- *
- * @return
- * RTC interrupt sources pending. A logical OR combination of valid
- * interrupt flags for the RTC module (RTC_IF_nnn).
- ******************************************************************************/
- static __INLINE uint32_t RTC_IntGet(void)
- {
- return(RTC->IF);
- }
- /***************************************************************************//**
- * @brief
- * Set one or more pending RTC interrupts from SW.
- *
- * @param[in] flags
- * RTC interrupt sources to set to pending. Use a logical OR combination of
- * valid interrupt flags for the RTC module (RTC_IF_nnn).
- ******************************************************************************/
- static __INLINE void RTC_IntSet(uint32_t flags)
- {
- RTC->IFS = flags;
- }
- /** @} (end addtogroup RTC) */
- /** @} (end addtogroup EFM32_Library) */
- #ifdef __cplusplus
- }
- #endif
- #endif /* __EFM32_RTC_H */
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