Toyomasa Watarai / mbed-dev-lpcx1769

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targets/hal/TARGET_Silicon_Labs/TARGET_EFM32/emlib/inc/em_cryotimer.h@50:a417edff4437, 2016-01-15 (annotated)

Committer:
mbed_official
Date:
Fri Jan 15 07:45:16 2016 +0000
Revision:
50:a417edff4437
Synchronized with git revision 6010f32619bfcbb01cc73747d4ff9040863482d9



Full URL: https://github.com/mbedmicro/mbed/commit/6010f32619bfcbb01cc73747d4ff9040863482d9/



Remove doubling of buffer size in realiseEndpoint()

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 50:a417edff4437 1 /***************************************************************************//**
mbed_official 50:a417edff4437 2 * @file em_cryotimer.h
mbed_official 50:a417edff4437 3 * @brief Ultra Low Energy Timer/Counter (CRYOTIMER) peripheral API
mbed_official 50:a417edff4437 4 * @version 4.2.1
mbed_official 50:a417edff4437 5 *******************************************************************************
mbed_official 50:a417edff4437 6 * @section License
mbed_official 50:a417edff4437 7 * <b>(C) Copyright 2015 Silicon Labs, http://www.silabs.com</b>
mbed_official 50:a417edff4437 8 *******************************************************************************
mbed_official 50:a417edff4437 9 *
mbed_official 50:a417edff4437 10 * Permission is granted to anyone to use this software for any purpose,
mbed_official 50:a417edff4437 11 * including commercial applications, and to alter it and redistribute it
mbed_official 50:a417edff4437 12 * freely, subject to the following restrictions:
mbed_official 50:a417edff4437 13 *
mbed_official 50:a417edff4437 14 * 1. The origin of this software must not be misrepresented; you must not
mbed_official 50:a417edff4437 15 * claim that you wrote the original software.@n
mbed_official 50:a417edff4437 16 * 2. Altered source versions must be plainly marked as such, and must not be
mbed_official 50:a417edff4437 17 * misrepresented as being the original software.@n
mbed_official 50:a417edff4437 18 * 3. This notice may not be removed or altered from any source distribution.
mbed_official 50:a417edff4437 19 *
mbed_official 50:a417edff4437 20 * DISCLAIMER OF WARRANTY/LIMITATION OF REMEDIES: Silicon Labs has no
mbed_official 50:a417edff4437 21 * obligation to support this Software. Silicon Labs is providing the
mbed_official 50:a417edff4437 22 * Software "AS IS", with no express or implied warranties of any kind,
mbed_official 50:a417edff4437 23 * including, but not limited to, any implied warranties of merchantability
mbed_official 50:a417edff4437 24 * or fitness for any particular purpose or warranties against infringement
mbed_official 50:a417edff4437 25 * of any proprietary rights of a third party.
mbed_official 50:a417edff4437 26 *
mbed_official 50:a417edff4437 27 * Silicon Labs will not be liable for any consequential, incidental, or
mbed_official 50:a417edff4437 28 * special damages, or any other relief, or for any claim by any third party,
mbed_official 50:a417edff4437 29 * arising from your use of this Software.
mbed_official 50:a417edff4437 30 *
mbed_official 50:a417edff4437 31 ******************************************************************************/
mbed_official 50:a417edff4437 32
mbed_official 50:a417edff4437 33 #ifndef EM_CRYOTIMER_H__
mbed_official 50:a417edff4437 34 #define EM_CRYOTIMER_H__
mbed_official 50:a417edff4437 35
mbed_official 50:a417edff4437 36 #include <stdbool.h>
mbed_official 50:a417edff4437 37 #include "em_device.h"
mbed_official 50:a417edff4437 38 #include "em_bus.h"
mbed_official 50:a417edff4437 39
mbed_official 50:a417edff4437 40 #if defined(CRYOTIMER_PRESENT) && (CRYOTIMER_COUNT == 1)
mbed_official 50:a417edff4437 41
mbed_official 50:a417edff4437 42 #ifdef __cplusplus
mbed_official 50:a417edff4437 43 extern "C" {
mbed_official 50:a417edff4437 44 #endif
mbed_official 50:a417edff4437 45
mbed_official 50:a417edff4437 46 /***************************************************************************//**
mbed_official 50:a417edff4437 47 * @addtogroup EM_Library
mbed_official 50:a417edff4437 48 * @{
mbed_official 50:a417edff4437 49 ******************************************************************************/
mbed_official 50:a417edff4437 50
mbed_official 50:a417edff4437 51 /***************************************************************************//**
mbed_official 50:a417edff4437 52 * @addtogroup CRYOTIMER
mbed_official 50:a417edff4437 53 * @brief Ultra Low Energy Timer/Counter (CRYOTIMER) Peripheral API
mbed_official 50:a417edff4437 54 *
mbed_official 50:a417edff4437 55 * @details
mbed_official 50:a417edff4437 56 * The user is responsible for choosing which oscillator to use for the
mbed_official 50:a417edff4437 57 * CRYOTIMER. The oscillator that is choosen must be enabled and ready before
mbed_official 50:a417edff4437 58 * calling this @ref CRYOTIMER_Init function. See @ref CMU_OscillatorEnable
mbed_official 50:a417edff4437 59 * for details of how to enable and wait for an oscillator to become ready.
mbed_official 50:a417edff4437 60 * Note that ULFRCO is always ready while LFRCO and LFXO must be enable by
mbed_official 50:a417edff4437 61 * the user.
mbed_official 50:a417edff4437 62 *
mbed_official 50:a417edff4437 63 * @details
mbed_official 50:a417edff4437 64 * Note that the only oscillator which is running in EM3 is ULFRCO. Keep this
mbed_official 50:a417edff4437 65 * in mind when choosing which oscillator to use for the CRYOTIMER.
mbed_official 50:a417edff4437 66 *
mbed_official 50:a417edff4437 67 * @details
mbed_official 50:a417edff4437 68 * Special care must be taken if the user wants the CRYOTIMER to run during
mbed_official 50:a417edff4437 69 * EM4. All the low frequency oscillators can be used in EM4, however the
mbed_official 50:a417edff4437 70 * oscillator that is used must be be configured to be retained when going
mbed_official 50:a417edff4437 71 * into EM4. This can be configured by using functions in the @ref EMU module.
mbed_official 50:a417edff4437 72 * See @ref EMU_EM4Init and @ref EMU_EM4Init_TypeDef. If an oscillator is
mbed_official 50:a417edff4437 73 * retained in EM4 the user is also responsible for unlatching the retained
mbed_official 50:a417edff4437 74 * configuration on a wakeup from EM4.
mbed_official 50:a417edff4437 75 *
mbed_official 50:a417edff4437 76 * @{
mbed_official 50:a417edff4437 77 ******************************************************************************/
mbed_official 50:a417edff4437 78
mbed_official 50:a417edff4437 79 /*******************************************************************************
mbed_official 50:a417edff4437 80 ********************************* ENUM ************************************
mbed_official 50:a417edff4437 81 ******************************************************************************/
mbed_official 50:a417edff4437 82
mbed_official 50:a417edff4437 83 /** Prescaler selection. */
mbed_official 50:a417edff4437 84 typedef enum
mbed_official 50:a417edff4437 85 {
mbed_official 50:a417edff4437 86 cryotimerPresc_1 = _CRYOTIMER_CTRL_PRESC_DIV1, /**< Divide clock by 1. */
mbed_official 50:a417edff4437 87 cryotimerPresc_2 = _CRYOTIMER_CTRL_PRESC_DIV2, /**< Divide clock by 2. */
mbed_official 50:a417edff4437 88 cryotimerPresc_4 = _CRYOTIMER_CTRL_PRESC_DIV4, /**< Divide clock by 4. */
mbed_official 50:a417edff4437 89 cryotimerPresc_8 = _CRYOTIMER_CTRL_PRESC_DIV8, /**< Divide clock by 8. */
mbed_official 50:a417edff4437 90 cryotimerPresc_16 = _CRYOTIMER_CTRL_PRESC_DIV16, /**< Divide clock by 16. */
mbed_official 50:a417edff4437 91 cryotimerPresc_32 = _CRYOTIMER_CTRL_PRESC_DIV32, /**< Divide clock by 32. */
mbed_official 50:a417edff4437 92 cryotimerPresc_64 = _CRYOTIMER_CTRL_PRESC_DIV64, /**< Divide clock by 64. */
mbed_official 50:a417edff4437 93 cryotimerPresc_128 = _CRYOTIMER_CTRL_PRESC_DIV128, /**< Divide clock by 128. */
mbed_official 50:a417edff4437 94 } CRYOTIMER_Presc_TypeDef;
mbed_official 50:a417edff4437 95
mbed_official 50:a417edff4437 96 /** Low frequency oscillator selection. */
mbed_official 50:a417edff4437 97 typedef enum
mbed_official 50:a417edff4437 98 {
mbed_official 50:a417edff4437 99 cryotimerOscLFRCO = _CRYOTIMER_CTRL_OSCSEL_LFRCO, /**< Select Low Frequency RC Oscillator. */
mbed_official 50:a417edff4437 100 cryotimerOscLFXO = _CRYOTIMER_CTRL_OSCSEL_LFXO, /**< Select Low Frequency Crystal Oscillator. */
mbed_official 50:a417edff4437 101 cryotimerOscULFRCO = _CRYOTIMER_CTRL_OSCSEL_ULFRCO, /**< Select Ultra Low Frequency RC Oscillator. */
mbed_official 50:a417edff4437 102 } CRYOTIMER_Osc_TypeDef;
mbed_official 50:a417edff4437 103
mbed_official 50:a417edff4437 104 /** Period selection value */
mbed_official 50:a417edff4437 105 typedef enum
mbed_official 50:a417edff4437 106 {
mbed_official 50:a417edff4437 107 cryotimerPeriod_1 = 0, /**< Wakeup event after every Pre-scaled clock cycle. */
mbed_official 50:a417edff4437 108 cryotimerPeriod_2 = 1, /**< Wakeup event after 2 Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 109 cryotimerPeriod_4 = 2, /**< Wakeup event after 4 Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 110 cryotimerPeriod_8 = 3, /**< Wakeup event after 8 Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 111 cryotimerPeriod_16 = 4, /**< Wakeup event after 16 Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 112 cryotimerPeriod_32 = 5, /**< Wakeup event after 32 Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 113 cryotimerPeriod_64 = 6, /**< Wakeup event after 64 Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 114 cryotimerPeriod_128 = 7, /**< Wakeup event after 128 Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 115 cryotimerPeriod_256 = 8, /**< Wakeup event after 256 Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 116 cryotimerPeriod_512 = 9, /**< Wakeup event after 512 Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 117 cryotimerPeriod_1k = 10, /**< Wakeup event after 1k Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 118 cryotimerPeriod_2k = 11, /**< Wakeup event after 2k Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 119 cryotimerPeriod_4k = 12, /**< Wakeup event after 4k Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 120 cryotimerPeriod_8k = 13, /**< Wakeup event after 8k Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 121 cryotimerPeriod_16k = 14, /**< Wakeup event after 16k Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 122 cryotimerPeriod_32k = 15, /**< Wakeup event after 32k Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 123 cryotimerPeriod_64k = 16, /**< Wakeup event after 64k Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 124 cryotimerPeriod_128k = 17, /**< Wakeup event after 128k Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 125 cryotimerPeriod_256k = 18, /**< Wakeup event after 256k Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 126 cryotimerPeriod_512k = 19, /**< Wakeup event after 512k Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 127 cryotimerPeriod_1m = 20, /**< Wakeup event after 1m Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 128 cryotimerPeriod_2m = 21, /**< Wakeup event after 2m Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 129 cryotimerPeriod_4m = 22, /**< Wakeup event after 4m Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 130 cryotimerPeriod_8m = 23, /**< Wakeup event after 8m Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 131 cryotimerPeriod_16m = 24, /**< Wakeup event after 16m Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 132 cryotimerPeriod_32m = 25, /**< Wakeup event after 32m Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 133 cryotimerPeriod_64m = 26, /**< Wakeup event after 64m Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 134 cryotimerPeriod_128m = 27, /**< Wakeup event after 128m Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 135 cryotimerPeriod_256m = 28, /**< Wakeup event after 256m Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 136 cryotimerPeriod_512m = 29, /**< Wakeup event after 512m Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 137 cryotimerPeriod_1024m = 30, /**< Wakeup event after 1024m Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 138 cryotimerPeriod_2048m = 31, /**< Wakeup event after 2048m Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 139 cryotimerPeriod_4096m = 32, /**< Wakeup event after 4096m Pre-scaled clock cycles. */
mbed_official 50:a417edff4437 140 } CRYOTIMER_Period_TypeDef;
mbed_official 50:a417edff4437 141
mbed_official 50:a417edff4437 142 /*******************************************************************************
mbed_official 50:a417edff4437 143 ******************************* STRUCTS ***********************************
mbed_official 50:a417edff4437 144 ******************************************************************************/
mbed_official 50:a417edff4437 145
mbed_official 50:a417edff4437 146 /** CRYOTIMER initialization structure. */
mbed_official 50:a417edff4437 147 typedef struct
mbed_official 50:a417edff4437 148 {
mbed_official 50:a417edff4437 149 /** Enable/disable counting when initialization is completed. */
mbed_official 50:a417edff4437 150 bool enable;
mbed_official 50:a417edff4437 151
mbed_official 50:a417edff4437 152 /** Enable/disable timer counting during debug halt. */
mbed_official 50:a417edff4437 153 bool debugRun;
mbed_official 50:a417edff4437 154
mbed_official 50:a417edff4437 155 /** Enable/disable EM4 Wakeup. */
mbed_official 50:a417edff4437 156 bool em4Wakeup;
mbed_official 50:a417edff4437 157
mbed_official 50:a417edff4437 158 /** Select the oscillator for the CRYOTIMER. */
mbed_official 50:a417edff4437 159 CRYOTIMER_Osc_TypeDef osc;
mbed_official 50:a417edff4437 160
mbed_official 50:a417edff4437 161 /** Prescaler. */
mbed_official 50:a417edff4437 162 CRYOTIMER_Presc_TypeDef presc;
mbed_official 50:a417edff4437 163
mbed_official 50:a417edff4437 164 /** Period between wakeup event/interrupt. */
mbed_official 50:a417edff4437 165 CRYOTIMER_Period_TypeDef period;
mbed_official 50:a417edff4437 166 } CRYOTIMER_Init_TypeDef;
mbed_official 50:a417edff4437 167
mbed_official 50:a417edff4437 168 /*******************************************************************************
mbed_official 50:a417edff4437 169 ******************************* DEFINES ***********************************
mbed_official 50:a417edff4437 170 ******************************************************************************/
mbed_official 50:a417edff4437 171
mbed_official 50:a417edff4437 172 /** Default CRYOTIMER init structure. */
mbed_official 50:a417edff4437 173 #define CRYOTIMER_INIT_DEFAULT \
mbed_official 50:a417edff4437 174 { \
mbed_official 50:a417edff4437 175 true, /* Start counting when init done. */ \
mbed_official 50:a417edff4437 176 false, /* Disable CRYOTIMER during debug halt. */ \
mbed_official 50:a417edff4437 177 false, /* Disable EM4 wakeup. */ \
mbed_official 50:a417edff4437 178 cryotimerOscLFRCO, /* Select Low Frequency RC Oscillator. */ \
mbed_official 50:a417edff4437 179 cryotimerPresc_1, /* LF Oscillator frequency undivided. */ \
mbed_official 50:a417edff4437 180 cryotimerPeriod_4096m, /* Wakeup event after 4096M pre-scaled clock cycles. */ \
mbed_official 50:a417edff4437 181 }
mbed_official 50:a417edff4437 182
mbed_official 50:a417edff4437 183 /*******************************************************************************
mbed_official 50:a417edff4437 184 ***************************** PROTOTYPES **********************************
mbed_official 50:a417edff4437 185 ******************************************************************************/
mbed_official 50:a417edff4437 186
mbed_official 50:a417edff4437 187 /***************************************************************************//**
mbed_official 50:a417edff4437 188 * @brief
mbed_official 50:a417edff4437 189 * Clear the CRYOTIMER period interrupt.
mbed_official 50:a417edff4437 190 *
mbed_official 50:a417edff4437 191 * @param[in] flags
mbed_official 50:a417edff4437 192 * CRYOTIMER interrupt sources to clear. Use CRYOTIMER_IFC_PERIOD
mbed_official 50:a417edff4437 193 ******************************************************************************/
mbed_official 50:a417edff4437 194 __STATIC_INLINE void CRYOTIMER_IntClear(uint32_t flags)
mbed_official 50:a417edff4437 195 {
mbed_official 50:a417edff4437 196 CRYOTIMER->IFC = flags & _CRYOTIMER_IFC_MASK;
mbed_official 50:a417edff4437 197 }
mbed_official 50:a417edff4437 198
mbed_official 50:a417edff4437 199 /***************************************************************************//**
mbed_official 50:a417edff4437 200 * @brief
mbed_official 50:a417edff4437 201 * Get the CRYOTIMER interrupt flag.
mbed_official 50:a417edff4437 202 *
mbed_official 50:a417edff4437 203 * @note
mbed_official 50:a417edff4437 204 * The event bits are not cleared by the use of this function.
mbed_official 50:a417edff4437 205 *
mbed_official 50:a417edff4437 206 * @return
mbed_official 50:a417edff4437 207 * Pending CRYOTIMER interrupt sources.
mbed_official 50:a417edff4437 208 ******************************************************************************/
mbed_official 50:a417edff4437 209 __STATIC_INLINE uint32_t CRYOTIMER_IntGet(void)
mbed_official 50:a417edff4437 210 {
mbed_official 50:a417edff4437 211 return CRYOTIMER->IF;
mbed_official 50:a417edff4437 212 }
mbed_official 50:a417edff4437 213
mbed_official 50:a417edff4437 214 /***************************************************************************//**
mbed_official 50:a417edff4437 215 * @brief
mbed_official 50:a417edff4437 216 * Get enabled and pending CRYOTIMER interrupt flags.
mbed_official 50:a417edff4437 217 * Useful for handling more interrupt sources in the same interrupt handler.
mbed_official 50:a417edff4437 218 *
mbed_official 50:a417edff4437 219 * @note
mbed_official 50:a417edff4437 220 * Interrupt flags are not cleared by the use of this function.
mbed_official 50:a417edff4437 221 *
mbed_official 50:a417edff4437 222 * @return
mbed_official 50:a417edff4437 223 * Pending and enabled CRYOTIMER interrupt sources
mbed_official 50:a417edff4437 224 * The return value is the bitwise AND of
mbed_official 50:a417edff4437 225 * - the enabled interrupt sources in CRYOTIMER_IEN and
mbed_official 50:a417edff4437 226 * - the pending interrupt flags CRYOTIMER_IF
mbed_official 50:a417edff4437 227 ******************************************************************************/
mbed_official 50:a417edff4437 228 __STATIC_INLINE uint32_t CRYOTIMER_IntGetEnabled(void)
mbed_official 50:a417edff4437 229 {
mbed_official 50:a417edff4437 230 uint32_t ien;
mbed_official 50:a417edff4437 231
mbed_official 50:a417edff4437 232 ien = CRYOTIMER->IEN & _CRYOTIMER_IEN_MASK;
mbed_official 50:a417edff4437 233 return CRYOTIMER->IF & ien;
mbed_official 50:a417edff4437 234 }
mbed_official 50:a417edff4437 235
mbed_official 50:a417edff4437 236 /***************************************************************************//**
mbed_official 50:a417edff4437 237 * @brief
mbed_official 50:a417edff4437 238 * Enable one or more CRYOTIMER interrupts.
mbed_official 50:a417edff4437 239 *
mbed_official 50:a417edff4437 240 * @param[in] flags
mbed_official 50:a417edff4437 241 * CRYOTIMER interrupt sources to enable. Use CRYOTIMER_IEN_PERIOD.
mbed_official 50:a417edff4437 242 ******************************************************************************/
mbed_official 50:a417edff4437 243 __STATIC_INLINE void CRYOTIMER_IntEnable(uint32_t flags)
mbed_official 50:a417edff4437 244 {
mbed_official 50:a417edff4437 245 CRYOTIMER->IEN |= (flags & _CRYOTIMER_IEN_MASK);
mbed_official 50:a417edff4437 246 }
mbed_official 50:a417edff4437 247
mbed_official 50:a417edff4437 248 /***************************************************************************//**
mbed_official 50:a417edff4437 249 * @brief
mbed_official 50:a417edff4437 250 * Disable one or more CRYOTIMER interrupts.
mbed_official 50:a417edff4437 251 *
mbed_official 50:a417edff4437 252 * @param[in] flags
mbed_official 50:a417edff4437 253 * CRYOTIMER interrupt sources to disable. Use CRYOTIMER_IEN_PERIOD.
mbed_official 50:a417edff4437 254 ******************************************************************************/
mbed_official 50:a417edff4437 255 __STATIC_INLINE void CRYOTIMER_IntDisable(uint32_t flags)
mbed_official 50:a417edff4437 256 {
mbed_official 50:a417edff4437 257 CRYOTIMER->IEN &= ~(flags & _CRYOTIMER_IEN_MASK);
mbed_official 50:a417edff4437 258 }
mbed_official 50:a417edff4437 259
mbed_official 50:a417edff4437 260 /***************************************************************************//**
mbed_official 50:a417edff4437 261 * @brief
mbed_official 50:a417edff4437 262 * Set the CRYOTIMER period interrupt flag.
mbed_official 50:a417edff4437 263 *
mbed_official 50:a417edff4437 264 * @note
mbed_official 50:a417edff4437 265 * Writes 1 to the interrupt flag set register.
mbed_official 50:a417edff4437 266 *
mbed_official 50:a417edff4437 267 * @param[in] flags
mbed_official 50:a417edff4437 268 * CRYOTIMER interrupt sources to set to pending. Use CRYOTIMER_IFS_PERIOD.
mbed_official 50:a417edff4437 269 ******************************************************************************/
mbed_official 50:a417edff4437 270 __STATIC_INLINE void CRYOTIMER_IntSet(uint32_t flags)
mbed_official 50:a417edff4437 271 {
mbed_official 50:a417edff4437 272 CRYOTIMER->IFS = flags & _CRYOTIMER_IFS_MASK;
mbed_official 50:a417edff4437 273 }
mbed_official 50:a417edff4437 274
mbed_official 50:a417edff4437 275 /***************************************************************************//**
mbed_official 50:a417edff4437 276 * @brief
mbed_official 50:a417edff4437 277 * Set the CRYOTIMER period select
mbed_official 50:a417edff4437 278 *
mbed_official 50:a417edff4437 279 * @note
mbed_official 50:a417edff4437 280 * Sets the duration between the Interrupts/Wakeup events based on
mbed_official 50:a417edff4437 281 * the pre-scaled clock.
mbed_official 50:a417edff4437 282 *
mbed_official 50:a417edff4437 283 * @param[in] period
mbed_official 50:a417edff4437 284 * 2^period is the number of clock cycles before a wakeup event or
mbed_official 50:a417edff4437 285 * interrupt is triggered. The CRYOTIMER_Periodsel_TypeDef enum can
mbed_official 50:a417edff4437 286 * be used a convenience type when calling this function.
mbed_official 50:a417edff4437 287 ******************************************************************************/
mbed_official 50:a417edff4437 288 __STATIC_INLINE void CRYOTIMER_PeriodSet(uint32_t period)
mbed_official 50:a417edff4437 289 {
mbed_official 50:a417edff4437 290 CRYOTIMER->PERIODSEL = period & _CRYOTIMER_PERIODSEL_MASK;
mbed_official 50:a417edff4437 291 }
mbed_official 50:a417edff4437 292
mbed_official 50:a417edff4437 293 /***************************************************************************//**
mbed_official 50:a417edff4437 294 * @brief
mbed_official 50:a417edff4437 295 * Get the CRYOTIMER period select value
mbed_official 50:a417edff4437 296 *
mbed_official 50:a417edff4437 297 * @note
mbed_official 50:a417edff4437 298 * Gets the duration between the Interrupts/Wakeup events in the
mbed_official 50:a417edff4437 299 * CRYOTIMER.
mbed_official 50:a417edff4437 300 *
mbed_official 50:a417edff4437 301 * @return
mbed_official 50:a417edff4437 302 * Duration between the interrupts/wakeup events. Returns the value
mbed_official 50:a417edff4437 303 * of the PERIODSEL register. The number of clock cycles can be calculated
mbed_official 50:a417edff4437 304 * as the 2^n where n is the return value of this function.
mbed_official 50:a417edff4437 305 ******************************************************************************/
mbed_official 50:a417edff4437 306 __STATIC_INLINE uint32_t CRYOTIMER_PeriodGet(void)
mbed_official 50:a417edff4437 307 {
mbed_official 50:a417edff4437 308 return CRYOTIMER->PERIODSEL;
mbed_official 50:a417edff4437 309 }
mbed_official 50:a417edff4437 310
mbed_official 50:a417edff4437 311 /***************************************************************************//**
mbed_official 50:a417edff4437 312 * @brief
mbed_official 50:a417edff4437 313 * Get the CRYOTIMER counter value
mbed_official 50:a417edff4437 314 *
mbed_official 50:a417edff4437 315 * @return
mbed_official 50:a417edff4437 316 * Returns the current CRYOTIMER counter value.
mbed_official 50:a417edff4437 317 ******************************************************************************/
mbed_official 50:a417edff4437 318 __STATIC_INLINE uint32_t CRYOTIMER_CounterGet(void)
mbed_official 50:a417edff4437 319 {
mbed_official 50:a417edff4437 320 return CRYOTIMER->CNT;
mbed_official 50:a417edff4437 321 }
mbed_official 50:a417edff4437 322
mbed_official 50:a417edff4437 323 /***************************************************************************//**
mbed_official 50:a417edff4437 324 * @brief
mbed_official 50:a417edff4437 325 * Enable/disable EM4 wakeup capability.
mbed_official 50:a417edff4437 326 *
mbed_official 50:a417edff4437 327 * @param[in] enable
mbed_official 50:a417edff4437 328 * True to enable EM4 wakeup, false to disable.
mbed_official 50:a417edff4437 329 ******************************************************************************/
mbed_official 50:a417edff4437 330 __STATIC_INLINE void CRYOTIMER_EM4WakeupEnable(bool enable)
mbed_official 50:a417edff4437 331 {
mbed_official 50:a417edff4437 332 BUS_RegBitWrite((&CRYOTIMER->EM4WUEN), _CRYOTIMER_EM4WUEN_EM4WU_SHIFT, enable);
mbed_official 50:a417edff4437 333 }
mbed_official 50:a417edff4437 334
mbed_official 50:a417edff4437 335 /***************************************************************************//**
mbed_official 50:a417edff4437 336 * @brief
mbed_official 50:a417edff4437 337 * Enable/disable the CRYOTIMER.
mbed_official 50:a417edff4437 338 *
mbed_official 50:a417edff4437 339 * @param[in] enable
mbed_official 50:a417edff4437 340 * True to enable the CRYOTIMER, false to disable.
mbed_official 50:a417edff4437 341 ******************************************************************************/
mbed_official 50:a417edff4437 342 __STATIC_INLINE void CRYOTIMER_Enable(bool enable)
mbed_official 50:a417edff4437 343 {
mbed_official 50:a417edff4437 344 BUS_RegBitWrite((&CRYOTIMER->CTRL), _CRYOTIMER_CTRL_EN_SHIFT, enable);
mbed_official 50:a417edff4437 345 }
mbed_official 50:a417edff4437 346
mbed_official 50:a417edff4437 347 void CRYOTIMER_Init(const CRYOTIMER_Init_TypeDef *init);
mbed_official 50:a417edff4437 348
mbed_official 50:a417edff4437 349 #ifdef __cplusplus
mbed_official 50:a417edff4437 350 }
mbed_official 50:a417edff4437 351 #endif
mbed_official 50:a417edff4437 352
mbed_official 50:a417edff4437 353 /** @} (end addtogroup CRYOTIMER) */
mbed_official 50:a417edff4437 354 /** @} (end addtogroup EM_Library) */
mbed_official 50:a417edff4437 355
mbed_official 50:a417edff4437 356 #endif /* defined(CRYOTIMER_PRESENT) && (CRYOTIMER_COUNT == 1) */
mbed_official 50:a417edff4437 357 #endif /* EM_CRYOTIMER_H__ */