Mercurial > public > ostc4
view Common/Drivers/STM32F4xx_HAL_Driver/Inc/stm32f4xx_ll_cortex.h @ 178:d36596281501
Minor: Replace stupid "Sleep Sleep Sleep" message with something more meaningful
author | heinrichsweikamp |
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date | Wed, 13 Mar 2019 20:51:50 +0100 |
parents | c78bcbd5deda |
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/** ****************************************************************************** * @file stm32f4xx_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) (+) MPU API to configure and enable regions (MPU services provided only on some devices) (+) API to access to MCU info (CPUID register) (+) API to enable fault handler (SHCSR accesses) @endverbatim ****************************************************************************** * @attention * * <h2><center>© COPYRIGHT(c) 2017 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 __STM32F4xx_LL_CORTEX_H #define __STM32F4xx_LL_CORTEX_H #ifdef __cplusplus extern "C" { #endif /* Includes ------------------------------------------------------------------*/ #include "stm32f4xx.h" /** @addtogroup STM32F4xx_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. */ /** * @} */ /** @defgroup CORTEX_LL_EC_FAULT Handler Fault type * @{ */ #define LL_HANDLER_FAULT_USG SCB_SHCSR_USGFAULTENA_Msk /*!< Usage fault */ #define LL_HANDLER_FAULT_BUS SCB_SHCSR_BUSFAULTENA_Msk /*!< Bus fault */ #define LL_HANDLER_FAULT_MEM SCB_SHCSR_MEMFAULTENA_Msk /*!< Memory management fault */ /** * @} */ #if __MPU_PRESENT /** @defgroup CORTEX_LL_EC_CTRL_HFNMI_PRIVDEF MPU Control * @{ */ #define LL_MPU_CTRL_HFNMI_PRIVDEF_NONE 0x00000000U /*!< Disable NMI and privileged SW access */ #define LL_MPU_CTRL_HARDFAULT_NMI MPU_CTRL_HFNMIENA_Msk /*!< Enables the operation of MPU during hard fault, NMI, and FAULTMASK handlers */ #define LL_MPU_CTRL_PRIVILEGED_DEFAULT MPU_CTRL_PRIVDEFENA_Msk /*!< Enable privileged software access to default memory map */ #define LL_MPU_CTRL_HFNMI_PRIVDEF (MPU_CTRL_HFNMIENA_Msk | MPU_CTRL_PRIVDEFENA_Msk) /*!< Enable NMI and privileged SW access */ /** * @} */ /** @defgroup CORTEX_LL_EC_REGION MPU Region Number * @{ */ #define LL_MPU_REGION_NUMBER0 0x00U /*!< REGION Number 0 */ #define LL_MPU_REGION_NUMBER1 0x01U /*!< REGION Number 1 */ #define LL_MPU_REGION_NUMBER2 0x02U /*!< REGION Number 2 */ #define LL_MPU_REGION_NUMBER3 0x03U /*!< REGION Number 3 */ #define LL_MPU_REGION_NUMBER4 0x04U /*!< REGION Number 4 */ #define LL_MPU_REGION_NUMBER5 0x05U /*!< REGION Number 5 */ #define LL_MPU_REGION_NUMBER6 0x06U /*!< REGION Number 6 */ #define LL_MPU_REGION_NUMBER7 0x07U /*!< REGION Number 7 */ /** * @} */ /** @defgroup CORTEX_LL_EC_REGION_SIZE MPU Region Size * @{ */ #define LL_MPU_REGION_SIZE_32B (0x04U << MPU_RASR_SIZE_Pos) /*!< 32B Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_64B (0x05U << MPU_RASR_SIZE_Pos) /*!< 64B Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_128B (0x06U << MPU_RASR_SIZE_Pos) /*!< 128B Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_256B (0x07U << MPU_RASR_SIZE_Pos) /*!< 256B Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_512B (0x08U << MPU_RASR_SIZE_Pos) /*!< 512B Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_1KB (0x09U << MPU_RASR_SIZE_Pos) /*!< 1KB Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_2KB (0x0AU << MPU_RASR_SIZE_Pos) /*!< 2KB Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_4KB (0x0BU << MPU_RASR_SIZE_Pos) /*!< 4KB Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_8KB (0x0CU << MPU_RASR_SIZE_Pos) /*!< 8KB Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_16KB (0x0DU << MPU_RASR_SIZE_Pos) /*!< 16KB Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_32KB (0x0EU << MPU_RASR_SIZE_Pos) /*!< 32KB Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_64KB (0x0FU << MPU_RASR_SIZE_Pos) /*!< 64KB Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_128KB (0x10U << MPU_RASR_SIZE_Pos) /*!< 128KB Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_256KB (0x11U << MPU_RASR_SIZE_Pos) /*!< 256KB Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_512KB (0x12U << MPU_RASR_SIZE_Pos) /*!< 512KB Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_1MB (0x13U << MPU_RASR_SIZE_Pos) /*!< 1MB Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_2MB (0x14U << MPU_RASR_SIZE_Pos) /*!< 2MB Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_4MB (0x15U << MPU_RASR_SIZE_Pos) /*!< 4MB Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_8MB (0x16U << MPU_RASR_SIZE_Pos) /*!< 8MB Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_16MB (0x17U << MPU_RASR_SIZE_Pos) /*!< 16MB Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_32MB (0x18U << MPU_RASR_SIZE_Pos) /*!< 32MB Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_64MB (0x19U << MPU_RASR_SIZE_Pos) /*!< 64MB Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_128MB (0x1AU << MPU_RASR_SIZE_Pos) /*!< 128MB Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_256MB (0x1BU << MPU_RASR_SIZE_Pos) /*!< 256MB Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_512MB (0x1CU << MPU_RASR_SIZE_Pos) /*!< 512MB Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_1GB (0x1DU << MPU_RASR_SIZE_Pos) /*!< 1GB Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_2GB (0x1EU << MPU_RASR_SIZE_Pos) /*!< 2GB Size of the MPU protection region */ #define LL_MPU_REGION_SIZE_4GB (0x1FU << MPU_RASR_SIZE_Pos) /*!< 4GB Size of the MPU protection region */ /** * @} */ /** @defgroup CORTEX_LL_EC_REGION_PRIVILEDGES MPU Region Privileges * @{ */ #define LL_MPU_REGION_NO_ACCESS (0x00U << MPU_RASR_AP_Pos) /*!< No access*/ #define LL_MPU_REGION_PRIV_RW (0x01U << MPU_RASR_AP_Pos) /*!< RW privileged (privileged access only)*/ #define LL_MPU_REGION_PRIV_RW_URO (0x02U << MPU_RASR_AP_Pos) /*!< RW privileged - RO user (Write in a user program generates a fault) */ #define LL_MPU_REGION_FULL_ACCESS (0x03U << MPU_RASR_AP_Pos) /*!< RW privileged & user (Full access) */ #define LL_MPU_REGION_PRIV_RO (0x05U << MPU_RASR_AP_Pos) /*!< RO privileged (privileged read only)*/ #define LL_MPU_REGION_PRIV_RO_URO (0x06U << MPU_RASR_AP_Pos) /*!< RO privileged & user (read only) */ /** * @} */ /** @defgroup CORTEX_LL_EC_TEX MPU TEX Level * @{ */ #define LL_MPU_TEX_LEVEL0 (0x00U << MPU_RASR_TEX_Pos) /*!< b000 for TEX bits */ #define LL_MPU_TEX_LEVEL1 (0x01U << MPU_RASR_TEX_Pos) /*!< b001 for TEX bits */ #define LL_MPU_TEX_LEVEL2 (0x02U << MPU_RASR_TEX_Pos) /*!< b010 for TEX bits */ #define LL_MPU_TEX_LEVEL4 (0x04U << MPU_RASR_TEX_Pos) /*!< b100 for TEX bits */ /** * @} */ /** @defgroup CORTEX_LL_EC_INSTRUCTION_ACCESS MPU Instruction Access * @{ */ #define LL_MPU_INSTRUCTION_ACCESS_ENABLE 0x00U /*!< Instruction fetches enabled */ #define LL_MPU_INSTRUCTION_ACCESS_DISABLE MPU_RASR_XN_Msk /*!< Instruction fetches disabled*/ /** * @} */ /** @defgroup CORTEX_LL_EC_SHAREABLE_ACCESS MPU Shareable Access * @{ */ #define LL_MPU_ACCESS_SHAREABLE MPU_RASR_S_Msk /*!< Shareable memory attribute */ #define LL_MPU_ACCESS_NOT_SHAREABLE 0x00U /*!< Not Shareable memory attribute */ /** * @} */ /** @defgroup CORTEX_LL_EC_CACHEABLE_ACCESS MPU Cacheable Access * @{ */ #define LL_MPU_ACCESS_CACHEABLE MPU_RASR_C_Msk /*!< Cacheable memory attribute */ #define LL_MPU_ACCESS_NOT_CACHEABLE 0x00U /*!< Not Cacheable memory attribute */ /** * @} */ /** @defgroup CORTEX_LL_EC_BUFFERABLE_ACCESS MPU Bufferable Access * @{ */ #define LL_MPU_ACCESS_BUFFERABLE MPU_RASR_B_Msk /*!< Bufferable memory attribute */ #define LL_MPU_ACCESS_NOT_BUFFERABLE 0x00U /*!< Not Bufferable memory attribute */ /** * @} */ #endif /* __MPU_PRESENT */ /** * @} */ /* 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_HANDLER HANDLER * @{ */ /** * @brief Enable a fault in System handler control register (SHCSR) * @rmtoll SCB_SHCSR MEMFAULTENA LL_HANDLER_EnableFault * @param Fault This parameter can be a combination of the following values: * @arg @ref LL_HANDLER_FAULT_USG * @arg @ref LL_HANDLER_FAULT_BUS * @arg @ref LL_HANDLER_FAULT_MEM * @retval None */ __STATIC_INLINE void LL_HANDLER_EnableFault(uint32_t Fault) { /* Enable the system handler fault */ SET_BIT(SCB->SHCSR, Fault); } /** * @brief Disable a fault in System handler control register (SHCSR) * @rmtoll SCB_SHCSR MEMFAULTENA LL_HANDLER_DisableFault * @param Fault This parameter can be a combination of the following values: * @arg @ref LL_HANDLER_FAULT_USG * @arg @ref LL_HANDLER_FAULT_BUS * @arg @ref LL_HANDLER_FAULT_MEM * @retval None */ __STATIC_INLINE void LL_HANDLER_DisableFault(uint32_t Fault) { /* Disable the system handler fault */ CLEAR_BIT(SCB->SHCSR, Fault); } /** * @} */ /** @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 Constant number * @rmtoll SCB_CPUID ARCHITECTURE LL_CPUID_GetConstant * @retval Value should be equal to 0xF for Cortex-M4 devices */ __STATIC_INLINE uint32_t LL_CPUID_GetConstant(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 0xC24 for Cortex-M4 */ __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); } /** * @} */ #if __MPU_PRESENT /** @defgroup CORTEX_LL_EF_MPU MPU * @{ */ /** * @brief Enable MPU with input options * @rmtoll MPU_CTRL ENABLE LL_MPU_Enable * @param Options This parameter can be one of the following values: * @arg @ref LL_MPU_CTRL_HFNMI_PRIVDEF_NONE * @arg @ref LL_MPU_CTRL_HARDFAULT_NMI * @arg @ref LL_MPU_CTRL_PRIVILEGED_DEFAULT * @arg @ref LL_MPU_CTRL_HFNMI_PRIVDEF * @retval None */ __STATIC_INLINE void LL_MPU_Enable(uint32_t Options) { /* Enable the MPU*/ WRITE_REG(MPU->CTRL, (MPU_CTRL_ENABLE_Msk | Options)); /* Ensure MPU settings take effects */ __DSB(); /* Sequence instruction fetches using update settings */ __ISB(); } /** * @brief Disable MPU * @rmtoll MPU_CTRL ENABLE LL_MPU_Disable * @retval None */ __STATIC_INLINE void LL_MPU_Disable(void) { /* Make sure outstanding transfers are done */ __DMB(); /* Disable MPU*/ WRITE_REG(MPU->CTRL, 0U); } /** * @brief Check if MPU is enabled or not * @rmtoll MPU_CTRL ENABLE LL_MPU_IsEnabled * @retval State of bit (1 or 0). */ __STATIC_INLINE uint32_t LL_MPU_IsEnabled(void) { return (READ_BIT(MPU->CTRL, MPU_CTRL_ENABLE_Msk) == (MPU_CTRL_ENABLE_Msk)); } /** * @brief Enable a MPU region * @rmtoll MPU_RASR ENABLE LL_MPU_EnableRegion * @param Region This parameter can be one of the following values: * @arg @ref LL_MPU_REGION_NUMBER0 * @arg @ref LL_MPU_REGION_NUMBER1 * @arg @ref LL_MPU_REGION_NUMBER2 * @arg @ref LL_MPU_REGION_NUMBER3 * @arg @ref LL_MPU_REGION_NUMBER4 * @arg @ref LL_MPU_REGION_NUMBER5 * @arg @ref LL_MPU_REGION_NUMBER6 * @arg @ref LL_MPU_REGION_NUMBER7 * @retval None */ __STATIC_INLINE void LL_MPU_EnableRegion(uint32_t Region) { /* Set Region number */ WRITE_REG(MPU->RNR, Region); /* Enable the MPU region */ SET_BIT(MPU->RASR, MPU_RASR_ENABLE_Msk); } /** * @brief Configure and enable a region * @rmtoll MPU_RNR REGION LL_MPU_ConfigRegion\n * MPU_RBAR REGION LL_MPU_ConfigRegion\n * MPU_RBAR ADDR LL_MPU_ConfigRegion\n * MPU_RASR XN LL_MPU_ConfigRegion\n * MPU_RASR AP LL_MPU_ConfigRegion\n * MPU_RASR S LL_MPU_ConfigRegion\n * MPU_RASR C LL_MPU_ConfigRegion\n * MPU_RASR B LL_MPU_ConfigRegion\n * MPU_RASR SIZE LL_MPU_ConfigRegion * @param Region This parameter can be one of the following values: * @arg @ref LL_MPU_REGION_NUMBER0 * @arg @ref LL_MPU_REGION_NUMBER1 * @arg @ref LL_MPU_REGION_NUMBER2 * @arg @ref LL_MPU_REGION_NUMBER3 * @arg @ref LL_MPU_REGION_NUMBER4 * @arg @ref LL_MPU_REGION_NUMBER5 * @arg @ref LL_MPU_REGION_NUMBER6 * @arg @ref LL_MPU_REGION_NUMBER7 * @param Address Value of region base address * @param SubRegionDisable Sub-region disable value between Min_Data = 0x00 and Max_Data = 0xFF * @param Attributes This parameter can be a combination of the following values: * @arg @ref LL_MPU_REGION_SIZE_32B or @ref LL_MPU_REGION_SIZE_64B or @ref LL_MPU_REGION_SIZE_128B or @ref LL_MPU_REGION_SIZE_256B or @ref LL_MPU_REGION_SIZE_512B * or @ref LL_MPU_REGION_SIZE_1KB or @ref LL_MPU_REGION_SIZE_2KB or @ref LL_MPU_REGION_SIZE_4KB or @ref LL_MPU_REGION_SIZE_8KB or @ref LL_MPU_REGION_SIZE_16KB * or @ref LL_MPU_REGION_SIZE_32KB or @ref LL_MPU_REGION_SIZE_64KB or @ref LL_MPU_REGION_SIZE_128KB or @ref LL_MPU_REGION_SIZE_256KB or @ref LL_MPU_REGION_SIZE_512KB * or @ref LL_MPU_REGION_SIZE_1MB or @ref LL_MPU_REGION_SIZE_2MB or @ref LL_MPU_REGION_SIZE_4MB or @ref LL_MPU_REGION_SIZE_8MB or @ref LL_MPU_REGION_SIZE_16MB * or @ref LL_MPU_REGION_SIZE_32MB or @ref LL_MPU_REGION_SIZE_64MB or @ref LL_MPU_REGION_SIZE_128MB or @ref LL_MPU_REGION_SIZE_256MB or @ref LL_MPU_REGION_SIZE_512MB * or @ref LL_MPU_REGION_SIZE_1GB or @ref LL_MPU_REGION_SIZE_2GB or @ref LL_MPU_REGION_SIZE_4GB * @arg @ref LL_MPU_REGION_NO_ACCESS or @ref LL_MPU_REGION_PRIV_RW or @ref LL_MPU_REGION_PRIV_RW_URO or @ref LL_MPU_REGION_FULL_ACCESS * or @ref LL_MPU_REGION_PRIV_RO or @ref LL_MPU_REGION_PRIV_RO_URO * @arg @ref LL_MPU_TEX_LEVEL0 or @ref LL_MPU_TEX_LEVEL1 or @ref LL_MPU_TEX_LEVEL2 or @ref LL_MPU_TEX_LEVEL4 * @arg @ref LL_MPU_INSTRUCTION_ACCESS_ENABLE or @ref LL_MPU_INSTRUCTION_ACCESS_DISABLE * @arg @ref LL_MPU_ACCESS_SHAREABLE or @ref LL_MPU_ACCESS_NOT_SHAREABLE * @arg @ref LL_MPU_ACCESS_CACHEABLE or @ref LL_MPU_ACCESS_NOT_CACHEABLE * @arg @ref LL_MPU_ACCESS_BUFFERABLE or @ref LL_MPU_ACCESS_NOT_BUFFERABLE * @retval None */ __STATIC_INLINE void LL_MPU_ConfigRegion(uint32_t Region, uint32_t SubRegionDisable, uint32_t Address, uint32_t Attributes) { /* Set Region number */ WRITE_REG(MPU->RNR, Region); /* Set base address */ WRITE_REG(MPU->RBAR, (Address & 0xFFFFFFE0U)); /* Configure MPU */ WRITE_REG(MPU->RASR, (MPU_RASR_ENABLE_Msk | Attributes | SubRegionDisable << MPU_RASR_SRD_Pos)); } /** * @brief Disable a region * @rmtoll MPU_RNR REGION LL_MPU_DisableRegion\n * MPU_RASR ENABLE LL_MPU_DisableRegion * @param Region This parameter can be one of the following values: * @arg @ref LL_MPU_REGION_NUMBER0 * @arg @ref LL_MPU_REGION_NUMBER1 * @arg @ref LL_MPU_REGION_NUMBER2 * @arg @ref LL_MPU_REGION_NUMBER3 * @arg @ref LL_MPU_REGION_NUMBER4 * @arg @ref LL_MPU_REGION_NUMBER5 * @arg @ref LL_MPU_REGION_NUMBER6 * @arg @ref LL_MPU_REGION_NUMBER7 * @retval None */ __STATIC_INLINE void LL_MPU_DisableRegion(uint32_t Region) { /* Set Region number */ WRITE_REG(MPU->RNR, Region); /* Disable the MPU region */ CLEAR_BIT(MPU->RASR, MPU_RASR_ENABLE_Msk); } /** * @} */ #endif /* __MPU_PRESENT */ /** * @} */ /** * @} */ /** * @} */ #ifdef __cplusplus } #endif #endif /* __STM32F4xx_LL_CORTEX_H */ 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