Diff: targets/hal/TARGET_STM/TARGET_STM32L4/sleep.c

Revision:

144:ef7eb2e8f9f7

Parent:

0:9b334a45a8ff

Child:

148:21d94c44109e

--- a/targets/hal/TARGET_STM/TARGET_STM32L4/sleep.c	Tue Aug 02 14:07:36 2016 +0000
+++ b/targets/hal/TARGET_STM/TARGET_STM32L4/sleep.c	Fri Sep 02 15:07:44 2016 +0100
@@ -1,68 +1,60 @@
-/* mbed Microcontroller Library
- *******************************************************************************
- * Copyright (c) 2015, 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"
-#include "hal_tick.h"
-
-static TIM_HandleTypeDef TimMasterHandle;
-
-void sleep(void)
-{
-    // Disable HAL tick interrupt
-    TimMasterHandle.Instance = TIM_MST;
-    __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)
-{
-    // Disable HAL tick interrupt
-    TimMasterHandle.Instance = TIM_MST;
-    __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC2);
-
-    // Request to enter STOP mode with regulator in low power mode
-    HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
-
-    // After wake-up from STOP reconfigure the PLL
-    SetSysClock();
-
-    // Enable HAL tick interrupt
-    __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC2);
-}
-
-#endif
+/* mbed Microcontroller Library
+ *******************************************************************************
+ * Copyright (c) 2015, 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"
+
+void sleep(void) {
+    // Stop HAL systick
+    HAL_SuspendTick();
+    // Request to enter SLEEP mode
+    HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);
+    // Restart HAL systick
+    HAL_ResumeTick();
+}
+
+void deepsleep(void)
+{
+    // Stop HAL systick
+    HAL_SuspendTick();
+
+    // Request to enter STOP mode with regulator in low power mode
+    HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
+
+    // After wake-up from STOP reconfigure the PLL
+    SetSysClock();
+
+    // Restart HAL systick
+    HAL_ResumeTick();
+}
+
+#endif