ea6d73f140
1. Upgrade Cortex driver library (CMSIS -> CMSIS & Device): version 2.3.2 -> 3.0.1 & 3.0.0 - Remove "bsp/efm32/Libraries/CMSIS/Lib/ARM", "bsp/efm32/Libraries/CMSIS/Lib/G++" and "bsp/efm32/Libraries/CMSIS/SVD" to save space 2. Upgrade EFM32 driver libraries (efm32lib -> emlib): version 2.3.2 -> 3.0.0 - Remove "bsp/efm32/Libraries/Device/EnergyMicro/EFM32LG" and "bsp/efm32/Libraries/Device/EnergyMicro/EFM32TG" to save space 3. Upgrade EFM32GG_DK3750 development kit driver library: version 1.2.2 -> 2.0.1 4. Upgrade EFM32_Gxxx_DK development kit driver library: version 1.7.3 -> 2.0.1 5. Add energy management unit driver and test code 6. Modify linker script and related code to compatible with new version of libraries 7. Change EFM32 branch version number to 1.0 8. Add photo frame demo application git-svn-id: https://rt-thread.googlecode.com/svn/trunk@2122 bbd45198-f89e-11dd-88c7-29a3b14d5316
265 lines
10 KiB
C
265 lines
10 KiB
C
/***************************************************************************//**
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* @file
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* @brief Low Energy Timer (LETIMER) peripheral API
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* @author Energy Micro AS
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* @version 3.0.0
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*******************************************************************************
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* @section License
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* <b>(C) Copyright 2012 Energy Micro AS, http://www.energymicro.com</b>
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*******************************************************************************
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software.
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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* 3. This notice may not be removed or altered from any source distribution.
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*
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* DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Energy Micro AS has no
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* obligation to support this Software. Energy Micro AS is providing the
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* Software "AS IS", with no express or implied warranties of any kind,
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* including, but not limited to, any implied warranties of merchantability
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* or fitness for any particular purpose or warranties against infringement
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* of any proprietary rights of a third party.
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*
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* Energy Micro AS will not be liable for any consequential, incidental, or
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* special damages, or any other relief, or for any claim by any third party,
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* arising from your use of this Software.
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*
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******************************************************************************/
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#ifndef __EM_LETIMER_H
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#define __EM_LETIMER_H
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#include <stdbool.h>
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#include "em_part.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/***************************************************************************//**
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* @addtogroup EM_Library
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* @{
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******************************************************************************/
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/***************************************************************************//**
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* @addtogroup LETIMER
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* @{
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******************************************************************************/
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/*******************************************************************************
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******************************** ENUMS ************************************
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******************************************************************************/
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/** Repeat mode. */
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typedef enum
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{
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/** Count until stopped by SW. */
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letimerRepeatFree = _LETIMER_CTRL_REPMODE_FREE,
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/** Count REP0 times. */
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letimerRepeatOneshot = _LETIMER_CTRL_REPMODE_ONESHOT,
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/**
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* Count REP0 times, if REP1 has been written to, it is loaded into
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* REP0 when REP0 is about to be decremented to 0.
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*/
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letimerRepeatBuffered = _LETIMER_CTRL_REPMODE_BUFFERED,
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/**
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* Run as long as both REP0 and REP1 are not 0. Both REP0 and REP1
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* are decremented when counter underflows.
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*/
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letimerRepeatDouble = _LETIMER_CTRL_REPMODE_DOUBLE
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} LETIMER_RepeatMode_TypeDef;
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/** Underflow action on output. */
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typedef enum
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{
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/** No output action. */
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letimerUFOANone = _LETIMER_CTRL_UFOA0_NONE,
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/** Toggle output when counter underflows. */
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letimerUFOAToggle = _LETIMER_CTRL_UFOA0_TOGGLE,
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/** Hold output one LETIMER clock cycle when counter underflows. */
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letimerUFOAPulse = _LETIMER_CTRL_UFOA0_PULSE,
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/** Set output idle when counter underflows, and active when matching COMP1. */
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letimerUFOAPwm = _LETIMER_CTRL_UFOA0_PWM
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} LETIMER_UFOA_TypeDef;
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/*******************************************************************************
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******************************* STRUCTS ***********************************
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******************************************************************************/
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/** LETIMER initialization structure. */
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typedef struct
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{
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bool enable; /**< Start counting when init completed. */
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bool debugRun; /**< Counter shall keep running during debug halt. */
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bool rtcComp0Enable; /**< Start counting on RTC COMP0 match. */
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bool rtcComp1Enable; /**< Start counting on RTC COMP1 match. */
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bool comp0Top; /**< Load COMP0 register into CNT when counter underflows. */
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bool bufTop; /**< Load COMP1 into COMP0 when REP0 reaches 0. */
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uint8_t out0Pol; /**< Idle value for output 0. */
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uint8_t out1Pol; /**< Idle value for output 1. */
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LETIMER_UFOA_TypeDef ufoa0; /**< Underflow output 0 action. */
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LETIMER_UFOA_TypeDef ufoa1; /**< Underflow output 1 action. */
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LETIMER_RepeatMode_TypeDef repMode; /**< Repeat mode. */
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} LETIMER_Init_TypeDef;
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/** Default config for LETIMER init structure. */
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#define LETIMER_INIT_DEFAULT \
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{ true, /* Enable timer when init complete. */ \
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false, /* Stop counter during debug halt. */ \
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false, /* Do not start counting on RTC COMP0 match. */ \
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false, /* Do not start counting on RTC COMP1 match. */ \
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false, /* Do not load COMP0 into CNT on underflow. */ \
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false, /* Do not load COMP1 into COMP0 when REP0 reaches 0. */ \
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0, /* Idle value 0 for output 0. */ \
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0, /* Idle value 0 for output 1. */ \
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letimerUFOANone, /* No action on underflow on output 0. */ \
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letimerUFOANone, /* No action on underflow on output 1. */ \
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letimerRepeatFree /* Count until stopped by SW. */ \
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}
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/*******************************************************************************
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***************************** PROTOTYPES **********************************
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******************************************************************************/
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uint32_t LETIMER_CompareGet(LETIMER_TypeDef *letimer, unsigned int comp);
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void LETIMER_CompareSet(LETIMER_TypeDef *letimer,
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unsigned int comp,
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uint32_t value);
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/***************************************************************************//**
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* @brief
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* Get LETIMER counter value.
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*
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* @param[in] letimer
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* Pointer to LETIMER peripheral register block.
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*
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* @return
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* Current LETIMER counter value.
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******************************************************************************/
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__STATIC_INLINE uint32_t LETIMER_CounterGet(LETIMER_TypeDef *letimer)
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{
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return(letimer->CNT);
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}
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void LETIMER_Enable(LETIMER_TypeDef *letimer, bool enable);
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void LETIMER_FreezeEnable(LETIMER_TypeDef *letimer, bool enable);
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void LETIMER_Init(LETIMER_TypeDef *letimer, const LETIMER_Init_TypeDef *init);
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/***************************************************************************//**
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* @brief
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* Clear one or more pending LETIMER interrupts.
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*
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* @param[in] letimer
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* Pointer to LETIMER peripheral register block.
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*
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* @param[in] flags
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* Pending LETIMER interrupt source to clear. Use a bitwise logic OR
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* combination of valid interrupt flags for the LETIMER module
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* (LETIMER_IF_nnn).
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******************************************************************************/
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__STATIC_INLINE void LETIMER_IntClear(LETIMER_TypeDef *letimer, uint32_t flags)
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{
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letimer->IFC = flags;
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}
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/***************************************************************************//**
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* @brief
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* Disable one or more LETIMER interrupts.
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*
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* @param[in] letimer
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* Pointer to LETIMER peripheral register block.
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*
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* @param[in] flags
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* LETIMER interrupt sources to disable. Use a bitwise logic OR combination of
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* valid interrupt flags for the LETIMER module (LETIMER_IF_nnn).
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******************************************************************************/
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__STATIC_INLINE void LETIMER_IntDisable(LETIMER_TypeDef *letimer, uint32_t flags)
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{
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letimer->IEN &= ~(flags);
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}
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/***************************************************************************//**
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* @brief
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* Enable one or more LETIMER interrupts.
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*
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* @note
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* Depending on the use, a pending interrupt may already be set prior to
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* enabling the interrupt. Consider using LETIMER_IntClear() prior to enabling
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* if such a pending interrupt should be ignored.
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*
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* @param[in] letimer
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* Pointer to LETIMER peripheral register block.
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*
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* @param[in] flags
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* LETIMER interrupt sources to enable. Use a bitwise logic OR combination of
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* valid interrupt flags for the LETIMER module (LETIMER_IF_nnn).
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******************************************************************************/
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__STATIC_INLINE void LETIMER_IntEnable(LETIMER_TypeDef *letimer, uint32_t flags)
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{
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letimer->IEN |= flags;
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}
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/***************************************************************************//**
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* @brief
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* Get pending LETIMER interrupt flags.
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*
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* @note
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* The event bits are not cleared by the use of this function.
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*
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* @param[in] letimer
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* Pointer to LETIMER peripheral register block.
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*
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* @return
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* LETIMER interrupt sources pending. A bitwise logic OR combination of
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* valid interrupt flags for the LETIMER module (LETIMER_IF_nnn).
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******************************************************************************/
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__STATIC_INLINE uint32_t LETIMER_IntGet(LETIMER_TypeDef *letimer)
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{
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return(letimer->IF);
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}
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/***************************************************************************//**
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* @brief
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* Set one or more pending LETIMER interrupts from SW.
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*
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* @param[in] letimer
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* Pointer to LETIMER peripheral register block.
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*
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* @param[in] flags
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* LETIMER interrupt sources to set to pending. Use a bitwise logic OR
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* combination of valid interrupt flags for the LETIMER module (LETIMER_IF_nnn).
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******************************************************************************/
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__STATIC_INLINE void LETIMER_IntSet(LETIMER_TypeDef *letimer, uint32_t flags)
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{
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letimer->IFS = flags;
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}
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uint32_t LETIMER_RepeatGet(LETIMER_TypeDef *letimer, unsigned int rep);
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void LETIMER_RepeatSet(LETIMER_TypeDef *letimer,
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unsigned int rep,
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uint32_t value);
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void LETIMER_Reset(LETIMER_TypeDef *letimer);
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/** @} (end addtogroup LETIMER) */
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/** @} (end addtogroup EM_Library) */
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#ifdef __cplusplus
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}
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#endif
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#endif /* __EM_LETIMER_H */
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