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Diff: TARGET_NUCLEO_F072RB/TOOLCHAIN_IAR/stm32f0xx_ll_cortex.h
- Revision:
- 171:3a7713b1edbc
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/TARGET_NUCLEO_F072RB/TOOLCHAIN_IAR/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>© 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****/