mbed official / mbed-dev

mbed library sources. Supersedes mbed-src.

Dependents:   Nucleo_Hello_Encoder BLE_iBeaconScan AM1805_DEMO DISCO-F429ZI_ExportTemplate1 ... more

targets/TARGET_STM/lp_ticker.c@189:f392fc9709a3, 2019-02-20 (annotated)

Committer:
AnnaBridge
Date:
Wed Feb 20 22:31:08 2019 +0000
Revision:
189:f392fc9709a3
Parent:
188:bcfe06ba3d64 
mbed library release version 165

Who changed what in which revision?

UserRevisionLine numberNew contents of line
<> 154:37f96f9d4de2 1 /* mbed Microcontroller Library
<> 154:37f96f9d4de2 2 *******************************************************************************
Anna Bridge 186:707f6e361f3e 3 * Copyright (c) 2018, STMicroelectronics
<> 154:37f96f9d4de2 4 * All rights reserved.
<> 154:37f96f9d4de2 5 *
<> 154:37f96f9d4de2 6 * Redistribution and use in source and binary forms, with or without
<> 154:37f96f9d4de2 7 * modification, are permitted provided that the following conditions are met:
<> 154:37f96f9d4de2 8 *
<> 154:37f96f9d4de2 9 * 1. Redistributions of source code must retain the above copyright notice,
<> 154:37f96f9d4de2 10 * this list of conditions and the following disclaimer.
<> 154:37f96f9d4de2 11 * 2. Redistributions in binary form must reproduce the above copyright notice,
<> 154:37f96f9d4de2 12 * this list of conditions and the following disclaimer in the documentation
<> 154:37f96f9d4de2 13 * and/or other materials provided with the distribution.
<> 154:37f96f9d4de2 14 * 3. Neither the name of STMicroelectronics nor the names of its contributors
<> 154:37f96f9d4de2 15 * may be used to endorse or promote products derived from this software
<> 154:37f96f9d4de2 16 * without specific prior written permission.
<> 154:37f96f9d4de2 17 *
<> 154:37f96f9d4de2 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
<> 154:37f96f9d4de2 19 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
<> 154:37f96f9d4de2 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
<> 154:37f96f9d4de2 21 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
<> 154:37f96f9d4de2 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
<> 154:37f96f9d4de2 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
<> 154:37f96f9d4de2 24 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
<> 154:37f96f9d4de2 25 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
<> 154:37f96f9d4de2 26 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
<> 154:37f96f9d4de2 27 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
<> 154:37f96f9d4de2 28 *******************************************************************************
<> 154:37f96f9d4de2 29 */
<> 154:37f96f9d4de2 30
Anna Bridge 186:707f6e361f3e 31 #if DEVICE_LPTICKER
<> 154:37f96f9d4de2 32
Anna Bridge 186:707f6e361f3e 33 /***********************************************************************/
Anna Bridge 186:707f6e361f3e 34 /* lpticker_lptim config is 1 in json config file */
Anna Bridge 186:707f6e361f3e 35 /* LPTICKER is based on LPTIM feature from ST drivers. RTC is not used */
Anna Bridge 186:707f6e361f3e 36 #if MBED_CONF_TARGET_LPTICKER_LPTIM
<> 154:37f96f9d4de2 37
Anna Bridge 186:707f6e361f3e 38 #include "lp_ticker_api.h"
Anna Bridge 186:707f6e361f3e 39 #include "mbed_error.h"
AnnaBridge 181:57724642e740 40
AnnaBridge 189:f392fc9709a3 41 #if !defined(LPTICKER_DELAY_TICKS) || (LPTICKER_DELAY_TICKS < 3)
AnnaBridge 189:f392fc9709a3 42 #warning "lpticker_delay_ticks value should be set to 3"
AnnaBridge 189:f392fc9709a3 43 #endif
AnnaBridge 189:f392fc9709a3 44
AnnaBridge 181:57724642e740 45 LPTIM_HandleTypeDef LptimHandle;
AnnaBridge 181:57724642e740 46
AnnaBridge 187:0387e8f68319 47 const ticker_info_t *lp_ticker_get_info()
Anna Bridge 186:707f6e361f3e 48 {
Anna Bridge 186:707f6e361f3e 49 static const ticker_info_t info = {
Anna Bridge 186:707f6e361f3e 50 #if MBED_CONF_TARGET_LSE_AVAILABLE
AnnaBridge 189:f392fc9709a3 51 LSE_VALUE / MBED_CONF_TARGET_LPTICKER_LPTIM_CLOCK,
Anna Bridge 186:707f6e361f3e 52 #else
AnnaBridge 189:f392fc9709a3 53 LSI_VALUE / MBED_CONF_TARGET_LPTICKER_LPTIM_CLOCK,
Anna Bridge 186:707f6e361f3e 54 #endif
Anna Bridge 186:707f6e361f3e 55 16
Anna Bridge 186:707f6e361f3e 56 };
Anna Bridge 186:707f6e361f3e 57 return &info;
Anna Bridge 186:707f6e361f3e 58 }
Anna Bridge 186:707f6e361f3e 59
AnnaBridge 181:57724642e740 60 volatile uint8_t lp_Fired = 0;
AnnaBridge 181:57724642e740 61
AnnaBridge 181:57724642e740 62 static void LPTIM1_IRQHandler(void);
AnnaBridge 181:57724642e740 63 static void (*irq_handler)(void);
AnnaBridge 181:57724642e740 64
AnnaBridge 181:57724642e740 65 void lp_ticker_init(void)
AnnaBridge 181:57724642e740 66 {
AnnaBridge 181:57724642e740 67 /* Check if LPTIM is already configured */
AnnaBridge 187:0387e8f68319 68 if (__HAL_RCC_LPTIM1_IS_CLK_ENABLED()) {
AnnaBridge 187:0387e8f68319 69 lp_ticker_disable_interrupt();
AnnaBridge 181:57724642e740 70 return;
AnnaBridge 181:57724642e740 71 }
AnnaBridge 181:57724642e740 72
AnnaBridge 181:57724642e740 73 RCC_PeriphCLKInitTypeDef RCC_PeriphCLKInitStruct = {0};
AnnaBridge 181:57724642e740 74 RCC_OscInitTypeDef RCC_OscInitStruct = {0};
AnnaBridge 181:57724642e740 75
AnnaBridge 181:57724642e740 76 #if MBED_CONF_TARGET_LSE_AVAILABLE
AnnaBridge 181:57724642e740 77
AnnaBridge 181:57724642e740 78 /* Enable LSE clock */
AnnaBridge 181:57724642e740 79 RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSE;
AnnaBridge 181:57724642e740 80 RCC_OscInitStruct.LSEState = RCC_LSE_ON;
AnnaBridge 181:57724642e740 81 RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
AnnaBridge 181:57724642e740 82
AnnaBridge 181:57724642e740 83 /* Select the LSE clock as LPTIM peripheral clock */
AnnaBridge 181:57724642e740 84 RCC_PeriphCLKInitStruct.PeriphClockSelection = RCC_PERIPHCLK_LPTIM1;
AnnaBridge 181:57724642e740 85 #if (TARGET_STM32L0)
AnnaBridge 181:57724642e740 86 RCC_PeriphCLKInitStruct.LptimClockSelection = RCC_LPTIM1CLKSOURCE_LSE;
AnnaBridge 181:57724642e740 87 #else
AnnaBridge 181:57724642e740 88 RCC_PeriphCLKInitStruct.Lptim1ClockSelection = RCC_LPTIM1CLKSOURCE_LSE;
AnnaBridge 181:57724642e740 89 #endif
AnnaBridge 181:57724642e740 90
AnnaBridge 181:57724642e740 91 #else /* MBED_CONF_TARGET_LSE_AVAILABLE */
AnnaBridge 181:57724642e740 92
AnnaBridge 181:57724642e740 93 /* Enable LSI clock */
AnnaBridge 181:57724642e740 94 RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSI;
AnnaBridge 181:57724642e740 95 RCC_OscInitStruct.LSIState = RCC_LSI_ON;
AnnaBridge 181:57724642e740 96 RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
AnnaBridge 181:57724642e740 97
AnnaBridge 181:57724642e740 98 /* Select the LSI clock as LPTIM peripheral clock */
AnnaBridge 181:57724642e740 99 RCC_PeriphCLKInitStruct.PeriphClockSelection = RCC_PERIPHCLK_LPTIM1;
AnnaBridge 181:57724642e740 100 #if (TARGET_STM32L0)
AnnaBridge 181:57724642e740 101 RCC_PeriphCLKInitStruct.LptimClockSelection = RCC_LPTIM1CLKSOURCE_LSI;
AnnaBridge 181:57724642e740 102 #else
AnnaBridge 181:57724642e740 103 RCC_PeriphCLKInitStruct.Lptim1ClockSelection = RCC_LPTIM1CLKSOURCE_LSI;
AnnaBridge 181:57724642e740 104 #endif
AnnaBridge 181:57724642e740 105
AnnaBridge 181:57724642e740 106 #endif /* MBED_CONF_TARGET_LSE_AVAILABLE */
AnnaBridge 181:57724642e740 107
AnnaBridge 181:57724642e740 108 if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK) {
AnnaBridge 181:57724642e740 109 error("HAL_RCC_OscConfig ERROR\n");
AnnaBridge 181:57724642e740 110 return;
AnnaBridge 181:57724642e740 111 }
AnnaBridge 181:57724642e740 112
AnnaBridge 181:57724642e740 113 if (HAL_RCCEx_PeriphCLKConfig(&RCC_PeriphCLKInitStruct) != HAL_OK) {
AnnaBridge 181:57724642e740 114 error("HAL_RCCEx_PeriphCLKConfig ERROR\n");
AnnaBridge 181:57724642e740 115 return;
AnnaBridge 181:57724642e740 116 }
AnnaBridge 181:57724642e740 117
AnnaBridge 181:57724642e740 118 __HAL_RCC_LPTIM1_CLK_ENABLE();
AnnaBridge 181:57724642e740 119 __HAL_RCC_LPTIM1_FORCE_RESET();
AnnaBridge 181:57724642e740 120 __HAL_RCC_LPTIM1_RELEASE_RESET();
AnnaBridge 181:57724642e740 121
AnnaBridge 181:57724642e740 122 /* Initialize the LPTIM peripheral */
AnnaBridge 181:57724642e740 123 LptimHandle.Instance = LPTIM1;
AnnaBridge 181:57724642e740 124 LptimHandle.State = HAL_LPTIM_STATE_RESET;
AnnaBridge 181:57724642e740 125 LptimHandle.Init.Clock.Source = LPTIM_CLOCKSOURCE_APBCLOCK_LPOSC;
AnnaBridge 189:f392fc9709a3 126 #if defined(MBED_CONF_TARGET_LPTICKER_LPTIM_CLOCK)
AnnaBridge 189:f392fc9709a3 127 #if (MBED_CONF_TARGET_LPTICKER_LPTIM_CLOCK == 4)
AnnaBridge 189:f392fc9709a3 128 LptimHandle.Init.Clock.Prescaler = LPTIM_PRESCALER_DIV4;
AnnaBridge 189:f392fc9709a3 129 #elif (MBED_CONF_TARGET_LPTICKER_LPTIM_CLOCK == 2)
AnnaBridge 189:f392fc9709a3 130 LptimHandle.Init.Clock.Prescaler = LPTIM_PRESCALER_DIV2;
AnnaBridge 189:f392fc9709a3 131 #else
Anna Bridge 186:707f6e361f3e 132 LptimHandle.Init.Clock.Prescaler = LPTIM_PRESCALER_DIV1;
AnnaBridge 189:f392fc9709a3 133 #endif
AnnaBridge 189:f392fc9709a3 134 #else
AnnaBridge 189:f392fc9709a3 135 LptimHandle.Init.Clock.Prescaler = LPTIM_PRESCALER_DIV1;
AnnaBridge 189:f392fc9709a3 136 #endif /* MBED_CONF_TARGET_LPTICKER_LPTIM_CLOCK */
AnnaBridge 181:57724642e740 137
AnnaBridge 181:57724642e740 138 LptimHandle.Init.Trigger.Source = LPTIM_TRIGSOURCE_SOFTWARE;
AnnaBridge 181:57724642e740 139 LptimHandle.Init.OutputPolarity = LPTIM_OUTPUTPOLARITY_HIGH;
AnnaBridge 181:57724642e740 140 LptimHandle.Init.UpdateMode = LPTIM_UPDATE_IMMEDIATE;
AnnaBridge 181:57724642e740 141 LptimHandle.Init.CounterSource = LPTIM_COUNTERSOURCE_INTERNAL;
AnnaBridge 189:f392fc9709a3 142 #if defined (LPTIM_INPUT1SOURCE_GPIO) /* STM32L4 */
AnnaBridge 181:57724642e740 143 LptimHandle.Init.Input1Source = LPTIM_INPUT1SOURCE_GPIO;
AnnaBridge 181:57724642e740 144 LptimHandle.Init.Input2Source = LPTIM_INPUT2SOURCE_GPIO;
AnnaBridge 189:f392fc9709a3 145 #endif /* LPTIM_INPUT1SOURCE_GPIO */
AnnaBridge 181:57724642e740 146
AnnaBridge 181:57724642e740 147 if (HAL_LPTIM_Init(&LptimHandle) != HAL_OK) {
AnnaBridge 181:57724642e740 148 error("HAL_LPTIM_Init ERROR\n");
AnnaBridge 181:57724642e740 149 return;
AnnaBridge 181:57724642e740 150 }
AnnaBridge 181:57724642e740 151
AnnaBridge 181:57724642e740 152 NVIC_SetVector(LPTIM1_IRQn, (uint32_t)LPTIM1_IRQHandler);
AnnaBridge 181:57724642e740 153
AnnaBridge 189:f392fc9709a3 154 #if defined (__HAL_LPTIM_WAKEUPTIMER_EXTI_ENABLE_IT)
AnnaBridge 181:57724642e740 155 /* EXTI lines are not configured by default */
AnnaBridge 181:57724642e740 156 __HAL_LPTIM_WAKEUPTIMER_EXTI_ENABLE_IT();
AnnaBridge 181:57724642e740 157 __HAL_LPTIM_WAKEUPTIMER_EXTI_ENABLE_RISING_EDGE();
AnnaBridge 181:57724642e740 158 #endif
AnnaBridge 181:57724642e740 159
AnnaBridge 181:57724642e740 160 __HAL_LPTIM_ENABLE_IT(&LptimHandle, LPTIM_IT_CMPM);
AnnaBridge 181:57724642e740 161 HAL_LPTIM_Counter_Start(&LptimHandle, 0xFFFF);
AnnaBridge 189:f392fc9709a3 162
AnnaBridge 189:f392fc9709a3 163 /* Need to write a compare value in order to get LPTIM_FLAG_CMPOK in set_interrupt */
AnnaBridge 189:f392fc9709a3 164 __HAL_LPTIM_CLEAR_FLAG(&LptimHandle, LPTIM_FLAG_CMPOK);
AnnaBridge 189:f392fc9709a3 165 __HAL_LPTIM_COMPARE_SET(&LptimHandle, 0);
AnnaBridge 189:f392fc9709a3 166 while (__HAL_LPTIM_GET_FLAG(&LptimHandle, LPTIM_FLAG_CMPOK) == RESET) {
AnnaBridge 189:f392fc9709a3 167 }
AnnaBridge 181:57724642e740 168 }
AnnaBridge 181:57724642e740 169
AnnaBridge 181:57724642e740 170 static void LPTIM1_IRQHandler(void)
AnnaBridge 181:57724642e740 171 {
AnnaBridge 181:57724642e740 172 LptimHandle.Instance = LPTIM1;
AnnaBridge 181:57724642e740 173
AnnaBridge 181:57724642e740 174 if (lp_Fired) {
AnnaBridge 181:57724642e740 175 lp_Fired = 0;
AnnaBridge 181:57724642e740 176 if (irq_handler) {
AnnaBridge 181:57724642e740 177 irq_handler();
AnnaBridge 181:57724642e740 178 }
AnnaBridge 181:57724642e740 179 }
AnnaBridge 181:57724642e740 180
AnnaBridge 181:57724642e740 181 /* Compare match interrupt */
AnnaBridge 181:57724642e740 182 if (__HAL_LPTIM_GET_FLAG(&LptimHandle, LPTIM_FLAG_CMPM) != RESET) {
AnnaBridge 181:57724642e740 183 if (__HAL_LPTIM_GET_IT_SOURCE(&LptimHandle, LPTIM_IT_CMPM) != RESET) {
AnnaBridge 181:57724642e740 184 /* Clear Compare match flag */
AnnaBridge 181:57724642e740 185 __HAL_LPTIM_CLEAR_FLAG(&LptimHandle, LPTIM_FLAG_CMPM);
AnnaBridge 181:57724642e740 186
Anna Bridge 186:707f6e361f3e 187 if (irq_handler) {
Anna Bridge 186:707f6e361f3e 188 irq_handler();
AnnaBridge 181:57724642e740 189 }
AnnaBridge 181:57724642e740 190 }
AnnaBridge 181:57724642e740 191 }
AnnaBridge 181:57724642e740 192
AnnaBridge 189:f392fc9709a3 193 #if defined (__HAL_LPTIM_WAKEUPTIMER_EXTI_CLEAR_FLAG)
AnnaBridge 189:f392fc9709a3 194 /* EXTI lines are not configured by default */
AnnaBridge 181:57724642e740 195 __HAL_LPTIM_WAKEUPTIMER_EXTI_CLEAR_FLAG();
AnnaBridge 181:57724642e740 196 #endif
AnnaBridge 181:57724642e740 197 }
AnnaBridge 181:57724642e740 198
AnnaBridge 181:57724642e740 199 uint32_t lp_ticker_read(void)
AnnaBridge 181:57724642e740 200 {
Anna Bridge 186:707f6e361f3e 201 uint32_t lp_time = LPTIM1->CNT;
Anna Bridge 186:707f6e361f3e 202 /* Reading the LPTIM_CNT register may return unreliable values.
Anna Bridge 186:707f6e361f3e 203 It is necessary to perform two consecutive read accesses and verify that the two returned values are identical */
Anna Bridge 186:707f6e361f3e 204 while (lp_time != LPTIM1->CNT) {
Anna Bridge 186:707f6e361f3e 205 lp_time = LPTIM1->CNT;
Anna Bridge 186:707f6e361f3e 206 }
Anna Bridge 186:707f6e361f3e 207 return lp_time;
AnnaBridge 181:57724642e740 208 }
AnnaBridge 181:57724642e740 209
AnnaBridge 181:57724642e740 210 void lp_ticker_set_interrupt(timestamp_t timestamp)
AnnaBridge 181:57724642e740 211 {
AnnaBridge 181:57724642e740 212 LptimHandle.Instance = LPTIM1;
AnnaBridge 181:57724642e740 213 irq_handler = (void (*)(void))lp_ticker_irq_handler;
AnnaBridge 181:57724642e740 214
AnnaBridge 189:f392fc9709a3 215 /* CMPOK is set by hardware to inform application that the APB bus write operation to the LPTIM_CMP register has been successfully completed */
AnnaBridge 189:f392fc9709a3 216 /* Any successive write before the CMPOK flag be set, will lead to unpredictable results */
AnnaBridge 189:f392fc9709a3 217 /* LPTICKER_DELAY_TICKS value prevents OS to call this set interrupt function before CMPOK */
AnnaBridge 189:f392fc9709a3 218 MBED_ASSERT(__HAL_LPTIM_GET_FLAG(&LptimHandle, LPTIM_FLAG_CMPOK) == SET);
AnnaBridge 188:bcfe06ba3d64 219 __HAL_LPTIM_CLEAR_FLAG(&LptimHandle, LPTIM_FLAG_CMPOK);
AnnaBridge 188:bcfe06ba3d64 220 __HAL_LPTIM_COMPARE_SET(&LptimHandle, timestamp);
Anna Bridge 186:707f6e361f3e 221
AnnaBridge 188:bcfe06ba3d64 222 lp_ticker_clear_interrupt();
AnnaBridge 181:57724642e740 223
Anna Bridge 186:707f6e361f3e 224 NVIC_EnableIRQ(LPTIM1_IRQn);
AnnaBridge 181:57724642e740 225 }
AnnaBridge 181:57724642e740 226
AnnaBridge 181:57724642e740 227 void lp_ticker_fire_interrupt(void)
AnnaBridge 181:57724642e740 228 {
AnnaBridge 181:57724642e740 229 lp_Fired = 1;
AnnaBridge 188:bcfe06ba3d64 230 irq_handler = (void (*)(void))lp_ticker_irq_handler;
AnnaBridge 181:57724642e740 231 NVIC_SetPendingIRQ(LPTIM1_IRQn);
Anna Bridge 186:707f6e361f3e 232 NVIC_EnableIRQ(LPTIM1_IRQn);
AnnaBridge 181:57724642e740 233 }
AnnaBridge 181:57724642e740 234
AnnaBridge 181:57724642e740 235 void lp_ticker_disable_interrupt(void)
AnnaBridge 181:57724642e740 236 {
AnnaBridge 187:0387e8f68319 237 NVIC_DisableIRQ(LPTIM1_IRQn);
AnnaBridge 181:57724642e740 238 LptimHandle.Instance = LPTIM1;
AnnaBridge 181:57724642e740 239 }
AnnaBridge 181:57724642e740 240
AnnaBridge 181:57724642e740 241 void lp_ticker_clear_interrupt(void)
AnnaBridge 181:57724642e740 242 {
AnnaBridge 181:57724642e740 243 LptimHandle.Instance = LPTIM1;
AnnaBridge 181:57724642e740 244 __HAL_LPTIM_CLEAR_FLAG(&LptimHandle, LPTIM_FLAG_CMPM);
Anna Bridge 186:707f6e361f3e 245 NVIC_ClearPendingIRQ(LPTIM1_IRQn);
AnnaBridge 181:57724642e740 246 }
AnnaBridge 181:57724642e740 247
AnnaBridge 188:bcfe06ba3d64 248 void lp_ticker_free(void)
AnnaBridge 188:bcfe06ba3d64 249 {
AnnaBridge 188:bcfe06ba3d64 250 lp_ticker_disable_interrupt();
AnnaBridge 188:bcfe06ba3d64 251 }
Anna Bridge 186:707f6e361f3e 252
Anna Bridge 186:707f6e361f3e 253 /*****************************************************************/
Anna Bridge 186:707f6e361f3e 254 /* lpticker_lptim config is 0 or not defined in json config file */
Anna Bridge 186:707f6e361f3e 255 /* LPTICKER is based on RTC wake up feature from ST drivers */
Anna Bridge 186:707f6e361f3e 256 #else /* MBED_CONF_TARGET_LPTICKER_LPTIM */
Anna Bridge 186:707f6e361f3e 257
Anna Bridge 186:707f6e361f3e 258 #include "rtc_api_hal.h"
Anna Bridge 186:707f6e361f3e 259
AnnaBridge 187:0387e8f68319 260 const ticker_info_t *lp_ticker_get_info()
Anna Bridge 186:707f6e361f3e 261 {
Anna Bridge 186:707f6e361f3e 262 static const ticker_info_t info = {
AnnaBridge 187:0387e8f68319 263 RTC_CLOCK / 4, // RTC_WAKEUPCLOCK_RTCCLK_DIV4
Anna Bridge 186:707f6e361f3e 264 32
Anna Bridge 186:707f6e361f3e 265 };
Anna Bridge 186:707f6e361f3e 266 return &info;
Anna Bridge 186:707f6e361f3e 267 }
AnnaBridge 181:57724642e740 268
<> 154:37f96f9d4de2 269 void lp_ticker_init(void)
<> 154:37f96f9d4de2 270 {
<> 154:37f96f9d4de2 271 rtc_init();
Anna Bridge 186:707f6e361f3e 272 lp_ticker_disable_interrupt();
<> 154:37f96f9d4de2 273 }
<> 154:37f96f9d4de2 274
<> 154:37f96f9d4de2 275 uint32_t lp_ticker_read(void)
<> 154:37f96f9d4de2 276 {
Anna Bridge 186:707f6e361f3e 277 return rtc_read_lp();
<> 154:37f96f9d4de2 278 }
<> 154:37f96f9d4de2 279
<> 154:37f96f9d4de2 280 void lp_ticker_set_interrupt(timestamp_t timestamp)
<> 154:37f96f9d4de2 281 {
Anna Bridge 186:707f6e361f3e 282 rtc_set_wake_up_timer(timestamp);
<> 154:37f96f9d4de2 283 }
<> 154:37f96f9d4de2 284
AnnaBridge 174:b96e65c34a4d 285 void lp_ticker_fire_interrupt(void)
AnnaBridge 174:b96e65c34a4d 286 {
Anna Bridge 186:707f6e361f3e 287 rtc_fire_interrupt();
AnnaBridge 174:b96e65c34a4d 288 }
AnnaBridge 174:b96e65c34a4d 289
<> 154:37f96f9d4de2 290 void lp_ticker_disable_interrupt(void)
<> 154:37f96f9d4de2 291 {
<> 154:37f96f9d4de2 292 rtc_deactivate_wake_up_timer();
<> 154:37f96f9d4de2 293 }
<> 154:37f96f9d4de2 294
<> 154:37f96f9d4de2 295 void lp_ticker_clear_interrupt(void)
<> 154:37f96f9d4de2 296 {
AnnaBridge 188:bcfe06ba3d64 297 lp_ticker_disable_interrupt();
AnnaBridge 188:bcfe06ba3d64 298 }
AnnaBridge 188:bcfe06ba3d64 299
AnnaBridge 188:bcfe06ba3d64 300 void lp_ticker_free(void)
AnnaBridge 188:bcfe06ba3d64 301 {
AnnaBridge 188:bcfe06ba3d64 302 lp_ticker_disable_interrupt();
<> 154:37f96f9d4de2 303 }
<> 154:37f96f9d4de2 304
Anna Bridge 186:707f6e361f3e 305 #endif /* MBED_CONF_TARGET_LPTICKER_LPTIM */
AnnaBridge 181:57724642e740 306
Anna Bridge 186:707f6e361f3e 307 #endif /* DEVICE_LPTICKER */