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Revision:
171:3a7713b1edbc
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TARGET_NUCLEO_F030R8/TOOLCHAIN_ARM_STD/stm32f0xx_ll_cortex.h	Thu Nov 08 11:45:42 2018 +0000
@@ -0,0 +1,336 @@
+/**
+  ******************************************************************************
+  * @file    stm32f0xx_ll_cortex.h
+  * @author  MCD Application Team
+  * @brief   Header file of CORTEX LL module.
+  @verbatim
+  ==============================================================================
+                     ##### How to use this driver #####
+  ==============================================================================
+    [..]
+    The LL CORTEX driver contains a set of generic APIs that can be
+    used by user:
+      (+) SYSTICK configuration used by @ref LL_mDelay and @ref LL_Init1msTick
+          functions
+      (+) Low power mode configuration (SCB register of Cortex-MCU)
+      (+) API to access to MCU info (CPUID register)
+
+  @endverbatim
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2016 STMicroelectronics</center></h2>
+  *
+  * 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.
+  *
+  ******************************************************************************
+  */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __STM32F0xx_LL_CORTEX_H
+#define __STM32F0xx_LL_CORTEX_H
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f0xx.h"
+
+/** @addtogroup STM32F0xx_LL_Driver
+  * @{
+  */
+
+/** @defgroup CORTEX_LL CORTEX
+  * @{
+  */
+
+/* Private types -------------------------------------------------------------*/
+/* Private variables ---------------------------------------------------------*/
+
+/* Private constants ---------------------------------------------------------*/
+
+/* Private macros ------------------------------------------------------------*/
+
+/* Exported types ------------------------------------------------------------*/
+/* Exported constants --------------------------------------------------------*/
+/** @defgroup CORTEX_LL_Exported_Constants CORTEX Exported Constants
+  * @{
+  */
+
+/** @defgroup CORTEX_LL_EC_CLKSOURCE_HCLK SYSTICK Clock Source
+  * @{
+  */
+#define LL_SYSTICK_CLKSOURCE_HCLK_DIV8     0x00000000U                 /*!< AHB clock divided by 8 selected as SysTick clock source.*/
+#define LL_SYSTICK_CLKSOURCE_HCLK          SysTick_CTRL_CLKSOURCE_Msk  /*!< AHB clock selected as SysTick clock source. */
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/* Exported macro ------------------------------------------------------------*/
+
+/* Exported functions --------------------------------------------------------*/
+/** @defgroup CORTEX_LL_Exported_Functions CORTEX Exported Functions
+  * @{
+  */
+
+/** @defgroup CORTEX_LL_EF_SYSTICK SYSTICK
+  * @{
+  */
+
+/**
+  * @brief  This function checks if the Systick counter flag is active or not.
+  * @note   It can be used in timeout function on application side.
+  * @rmtoll STK_CTRL     COUNTFLAG     LL_SYSTICK_IsActiveCounterFlag
+  * @retval State of bit (1 or 0).
+  */
+__STATIC_INLINE uint32_t LL_SYSTICK_IsActiveCounterFlag(void)
+{
+  return ((SysTick->CTRL & SysTick_CTRL_COUNTFLAG_Msk) == (SysTick_CTRL_COUNTFLAG_Msk));
+}
+
+/**
+  * @brief  Configures the SysTick clock source
+  * @rmtoll STK_CTRL     CLKSOURCE     LL_SYSTICK_SetClkSource
+  * @param  Source This parameter can be one of the following values:
+  *         @arg @ref LL_SYSTICK_CLKSOURCE_HCLK_DIV8
+  *         @arg @ref LL_SYSTICK_CLKSOURCE_HCLK
+  * @retval None
+  */
+__STATIC_INLINE void LL_SYSTICK_SetClkSource(uint32_t Source)
+{
+  if (Source == LL_SYSTICK_CLKSOURCE_HCLK)
+  {
+    SET_BIT(SysTick->CTRL, LL_SYSTICK_CLKSOURCE_HCLK);
+  }
+  else
+  {
+    CLEAR_BIT(SysTick->CTRL, LL_SYSTICK_CLKSOURCE_HCLK);
+  }
+}
+
+/**
+  * @brief  Get the SysTick clock source
+  * @rmtoll STK_CTRL     CLKSOURCE     LL_SYSTICK_GetClkSource
+  * @retval Returned value can be one of the following values:
+  *         @arg @ref LL_SYSTICK_CLKSOURCE_HCLK_DIV8
+  *         @arg @ref LL_SYSTICK_CLKSOURCE_HCLK
+  */
+__STATIC_INLINE uint32_t LL_SYSTICK_GetClkSource(void)
+{
+  return READ_BIT(SysTick->CTRL, LL_SYSTICK_CLKSOURCE_HCLK);
+}
+
+/**
+  * @brief  Enable SysTick exception request
+  * @rmtoll STK_CTRL     TICKINT       LL_SYSTICK_EnableIT
+  * @retval None
+  */
+__STATIC_INLINE void LL_SYSTICK_EnableIT(void)
+{
+  SET_BIT(SysTick->CTRL, SysTick_CTRL_TICKINT_Msk);
+}
+
+/**
+  * @brief  Disable SysTick exception request
+  * @rmtoll STK_CTRL     TICKINT       LL_SYSTICK_DisableIT
+  * @retval None
+  */
+__STATIC_INLINE void LL_SYSTICK_DisableIT(void)
+{
+  CLEAR_BIT(SysTick->CTRL, SysTick_CTRL_TICKINT_Msk);
+}
+
+/**
+  * @brief  Checks if the SYSTICK interrupt is enabled or disabled.
+  * @rmtoll STK_CTRL     TICKINT       LL_SYSTICK_IsEnabledIT
+  * @retval State of bit (1 or 0).
+  */
+__STATIC_INLINE uint32_t LL_SYSTICK_IsEnabledIT(void)
+{
+  return (READ_BIT(SysTick->CTRL, SysTick_CTRL_TICKINT_Msk) == (SysTick_CTRL_TICKINT_Msk));
+}
+
+/**
+  * @}
+  */
+
+/** @defgroup CORTEX_LL_EF_LOW_POWER_MODE LOW POWER MODE
+  * @{
+  */
+
+/**
+  * @brief  Processor uses sleep as its low power mode
+  * @rmtoll SCB_SCR      SLEEPDEEP     LL_LPM_EnableSleep
+  * @retval None
+  */
+__STATIC_INLINE void LL_LPM_EnableSleep(void)
+{
+  /* Clear SLEEPDEEP bit of Cortex System Control Register */
+  CLEAR_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPDEEP_Msk));
+}
+
+/**
+  * @brief  Processor uses deep sleep as its low power mode
+  * @rmtoll SCB_SCR      SLEEPDEEP     LL_LPM_EnableDeepSleep
+  * @retval None
+  */
+__STATIC_INLINE void LL_LPM_EnableDeepSleep(void)
+{
+  /* Set SLEEPDEEP bit of Cortex System Control Register */
+  SET_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPDEEP_Msk));
+}
+
+/**
+  * @brief  Configures sleep-on-exit when returning from Handler mode to Thread mode.
+  * @note   Setting this bit to 1 enables an interrupt-driven application to avoid returning to an
+  *         empty main application.
+  * @rmtoll SCB_SCR      SLEEPONEXIT   LL_LPM_EnableSleepOnExit
+  * @retval None
+  */
+__STATIC_INLINE void LL_LPM_EnableSleepOnExit(void)
+{
+  /* Set SLEEPONEXIT bit of Cortex System Control Register */
+  SET_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPONEXIT_Msk));
+}
+
+/**
+  * @brief  Do not sleep when returning to Thread mode.
+  * @rmtoll SCB_SCR      SLEEPONEXIT   LL_LPM_DisableSleepOnExit
+  * @retval None
+  */
+__STATIC_INLINE void LL_LPM_DisableSleepOnExit(void)
+{
+  /* Clear SLEEPONEXIT bit of Cortex System Control Register */
+  CLEAR_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SLEEPONEXIT_Msk));
+}
+
+/**
+  * @brief  Enabled events and all interrupts, including disabled interrupts, can wakeup the
+  *         processor.
+  * @rmtoll SCB_SCR      SEVEONPEND    LL_LPM_EnableEventOnPend
+  * @retval None
+  */
+__STATIC_INLINE void LL_LPM_EnableEventOnPend(void)
+{
+  /* Set SEVEONPEND bit of Cortex System Control Register */
+  SET_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SEVONPEND_Msk));
+}
+
+/**
+  * @brief  Only enabled interrupts or events can wakeup the processor, disabled interrupts are
+  *         excluded
+  * @rmtoll SCB_SCR      SEVEONPEND    LL_LPM_DisableEventOnPend
+  * @retval None
+  */
+__STATIC_INLINE void LL_LPM_DisableEventOnPend(void)
+{
+  /* Clear SEVEONPEND bit of Cortex System Control Register */
+  CLEAR_BIT(SCB->SCR, ((uint32_t)SCB_SCR_SEVONPEND_Msk));
+}
+
+/**
+  * @}
+  */
+
+/** @defgroup CORTEX_LL_EF_MCU_INFO MCU INFO
+  * @{
+  */
+
+/**
+  * @brief  Get Implementer code
+  * @rmtoll SCB_CPUID    IMPLEMENTER   LL_CPUID_GetImplementer
+  * @retval Value should be equal to 0x41 for ARM
+  */
+__STATIC_INLINE uint32_t LL_CPUID_GetImplementer(void)
+{
+  return (uint32_t)(READ_BIT(SCB->CPUID, SCB_CPUID_IMPLEMENTER_Msk) >> SCB_CPUID_IMPLEMENTER_Pos);
+}
+
+/**
+  * @brief  Get Variant number (The r value in the rnpn product revision identifier)
+  * @rmtoll SCB_CPUID    VARIANT       LL_CPUID_GetVariant
+  * @retval Value between 0 and 255 (0x0: revision 0)
+  */
+__STATIC_INLINE uint32_t LL_CPUID_GetVariant(void)
+{
+  return (uint32_t)(READ_BIT(SCB->CPUID, SCB_CPUID_VARIANT_Msk) >> SCB_CPUID_VARIANT_Pos);
+}
+
+/**
+  * @brief  Get Architecture number 
+  * @rmtoll SCB_CPUID    ARCHITECTURE  LL_CPUID_GetArchitecture
+  * @retval Value should be equal to 0xC for Cortex-M0 devices
+  */
+__STATIC_INLINE uint32_t LL_CPUID_GetArchitecture(void)
+{
+  return (uint32_t)(READ_BIT(SCB->CPUID, SCB_CPUID_ARCHITECTURE_Msk) >> SCB_CPUID_ARCHITECTURE_Pos);
+}
+
+/**
+  * @brief  Get Part number
+  * @rmtoll SCB_CPUID    PARTNO        LL_CPUID_GetParNo
+  * @retval Value should be equal to 0xC20 for Cortex-M0
+  */
+__STATIC_INLINE uint32_t LL_CPUID_GetParNo(void)
+{
+  return (uint32_t)(READ_BIT(SCB->CPUID, SCB_CPUID_PARTNO_Msk) >> SCB_CPUID_PARTNO_Pos);
+}
+
+/**
+  * @brief  Get Revision number (The p value in the rnpn product revision identifier, indicates patch release)
+  * @rmtoll SCB_CPUID    REVISION      LL_CPUID_GetRevision
+  * @retval Value between 0 and 255 (0x1: patch 1)
+  */
+__STATIC_INLINE uint32_t LL_CPUID_GetRevision(void)
+{
+  return (uint32_t)(READ_BIT(SCB->CPUID, SCB_CPUID_REVISION_Msk) >> SCB_CPUID_REVISION_Pos);
+}
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __STM32F0xx_LL_CORTEX_H */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/