--- /dev/null
+/* mbed Microcontroller Library
+ *******************************************************************************
+ * Copyright (c) 2014, STMicroelectronics
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *******************************************************************************
+ */
+#include "sleep_api.h"
+
+#if DEVICE_SLEEP
+
+#include "cmsis.h"
+
+static TIM_HandleTypeDef TimMasterHandle;
+
+void sleep(void)
+{
+ // Disable HAL tick interrupt
+ TimMasterHandle.Instance = TIM5;
+ __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC2);
+
+ // Request to enter SLEEP mode
+ HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);
+
+ // Enable HAL tick interrupt
+ __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC2);
+}
+
+void deepsleep(void)
+{
+#if defined(TARGET_MOTE_L152RC)
+ int8_t STOPEntry = PWR_STOPENTRY_WFI;
+#endif
+
+ // Disable HAL tick interrupt
+ TimMasterHandle.Instance = TIM5;
+ __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC2);
+
+#if defined(TARGET_MOTE_L152RC)
+ /* Select the regulator state in Stop mode: Set PDDS and LPSDSR bit according to PWR_Regulator value */
+ MODIFY_REG(PWR->CR, (PWR_CR_PDDS | PWR_CR_LPSDSR), PWR_LOWPOWERREGULATOR_ON);
+
+ /* Set SLEEPDEEP bit of Cortex System Control Register */
+ SET_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPDEEP_Msk));
+
+ /* Select Stop mode entry --------------------------------------------------*/
+ if(STOPEntry == PWR_STOPENTRY_WFI)
+ {
+ /* Request Wait For Interrupt */
+ __WFI();
+ }
+ else
+ {
+ /* Request Wait For Event */
+ __SEV();
+ __WFE();
+ __WFE();
+ }
+ __NOP();
+ __NOP();
+ __NOP();
+ /* Reset SLEEPDEEP bit of Cortex System Control Register */
+ CLEAR_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPDEEP_Msk));
+#else
+ // Request to enter STOP mode with regulator in low power mode
+ HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
+#endif
+
+ // After wake-up from STOP reconfigure the PLL
+ SetSysClock();
+
+ // Enable HAL tick interrupt
+ __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC2);
+}
+
+#endif