/* ChibiOS/RT - Copyright (C) 2006,2007,2008,2009,2010, 2011 Giovanni Di Sirio. This file is part of ChibiOS/RT. ChibiOS/RT is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. ChibiOS/RT is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program. If not, see . */ /** * @file common/ARMCMx/nvic.h * @brief Cortex-Mx NVIC support macros and structures. * * @addtogroup COMMON_ARMCMx_NVIC * @{ */ #ifndef _NVIC_H_ #define _NVIC_H_ /** * @name System vector numbers * @{ */ #define HANDLER_MEM_MANAGE 0 /**< MEM MANAGE vector id. */ #define HANDLER_BUS_FAULT 1 /**< BUS FAULT vector id. */ #define HANDLER_USAGE_FAULT 2 /**< USAGE FAULT vector id. */ #define HANDLER_RESERVED_3 3 #define HANDLER_RESERVED_4 4 #define HANDLER_RESERVED_5 5 #define HANDLER_RESERVED_6 6 #define HANDLER_SVCALL 7 /**< SVCALL vector id. */ #define HANDLER_DEBUG_MONITOR 8 /**< DEBUG MONITOR vector id. */ #define HANDLER_RESERVED_9 9 #define HANDLER_PENDSV 10 /**< PENDSV vector id. */ #define HANDLER_SYSTICK 11 /**< SYS TCK vector id. */ /** @} */ typedef volatile uint8_t IOREG8; /**< 8 bits I/O register type. */ typedef volatile uint32_t IOREG32; /**< 32 bits I/O register type. */ /** * @brief NVIC ITCR register. */ #define NVIC_ITCR (*((IOREG32 *)0xE000E004U)) /** * @brief Structure representing the SYSTICK I/O space. */ typedef struct { IOREG32 CSR; IOREG32 RVR; IOREG32 CVR; IOREG32 CBVR; } CMx_ST; /** * @brief SYSTICK peripheral base address. */ #define STBase ((CMx_ST *)0xE000E010U) #define ST_CSR (STBase->CSR) #define ST_RVR (STBase->RVR) #define ST_CVR (STBase->CVR) #define ST_CBVR (STBase->CBVR) #define CSR_ENABLE_MASK (0x1U << 0) #define ENABLE_OFF_BITS (0U << 0) #define ENABLE_ON_BITS (1U << 0) #define CSR_TICKINT_MASK (0x1U << 1) #define TICKINT_DISABLED_BITS (0U << 1) #define TICKINT_ENABLED_BITS (1U << 1) #define CSR_CLKSOURCE_MASK (0x1U << 2) #define CLKSOURCE_EXT_BITS (0U << 2) #define CLKSOURCE_CORE_BITS (1U << 2) #define CSR_COUNTFLAG_MASK (0x1U << 16) #define RVR_RELOAD_MASK (0xFFFFFFU << 0) #define CVR_CURRENT_MASK (0xFFFFFFU << 0) #define CBVR_TENMS_MASK (0xFFFFFFU << 0) #define CBVR_SKEW_MASK (0x1U << 30) #define CBVR_NOREF_MASK (0x1U << 31) /** * @brief Structure representing the NVIC I/O space. */ typedef struct { IOREG32 ISER[8]; IOREG32 unused1[24]; IOREG32 ICER[8]; IOREG32 unused2[24]; IOREG32 ISPR[8]; IOREG32 unused3[24]; IOREG32 ICPR[8]; IOREG32 unused4[24]; IOREG32 IABR[8]; IOREG32 unused5[56]; IOREG32 IPR[60]; IOREG32 unused6[644]; IOREG32 STIR; } CMx_NVIC; /** * @brief NVIC peripheral base address. */ #define NVICBase ((CMx_NVIC *)0xE000E100U) #define NVIC_ISER(n) (NVICBase->ISER[n]) #define NVIC_ICER(n) (NVICBase->ICER[n]) #define NVIC_ISPR(n) (NVICBase->ISPR[n]) #define NVIC_ICPR(n) (NVICBase->ICPR[n]) #define NVIC_IABR(n) (NVICBase->IABR[n]) #define NVIC_IPR(n) (NVICBase->IPR[n]) #define NVIC_STIR (NVICBase->STIR) /** * @brief Structure representing the System Control Block I/O space. */ typedef struct { IOREG32 CPUID; IOREG32 ICSR; IOREG32 VTOR; IOREG32 AIRCR; IOREG32 SCR; IOREG32 CCR; IOREG32 SHPR[3]; IOREG32 SHCSR; IOREG32 CFSR; IOREG32 HFSR; IOREG32 DFSR; IOREG32 MMFAR; IOREG32 BFAR; IOREG32 AFSR; IOREG32 PFR[2]; IOREG32 DFR; IOREG32 ADR; IOREG32 MMFR[4]; IOREG32 SAR[5]; IOREG32 unused1[5]; IOREG32 CPACR; } CMx_SCB; /** * @brief SCB peripheral base address. */ #define SCBBase ((CMx_SCB *)0xE000ED00U) #define SCB_CPUID (SCBBase->CPUID) #define SCB_ICSR (SCBBase->ICSR) #define SCB_VTOR (SCBBase->VTOR) #define SCB_AIRCR (SCBBase->AIRCR) #define SCB_SCR (SCBBase->SCR) #define SCB_CCR (SCBBase->CCR) #define SCB_SHPR(n) (SCBBase->SHPR[n]) #define SCB_SHCSR (SCBBase->SHCSR) #define SCB_CFSR (SCBBase->CFSR) #define SCB_HFSR (SCBBase->HFSR) #define SCB_DFSR (SCBBase->DFSR) #define SCB_MMFAR (SCBBase->MMFAR) #define SCB_BFAR (SCBBase->BFAR) #define SCB_AFSR (SCBBase->AFSR) #define SCB_PFR(n) (SCBBase->PFR[n]) #define SCB_DFR (SCBBase->DFR) #define SCB_ADR (SCBBase->ADR) #define SCB_MMFR(n) (SCBBase->MMFR[n]) #define SCB_SAR(n) (SCBBase->SAR[n]) #define SCB_CPACR (SCBBase->CPACR) #define ICSR_VECTACTIVE_MASK (0x1FFU << 0) #define ICSR_RETTOBASE (0x1U << 11) #define ICSR_VECTPENDING_MASK (0x1FFU << 12) #define ICSR_ISRPENDING (0x1U << 22) #define ICSR_ISRPREEMPT (0x1U << 23) #define ICSR_PENDSTCLR (0x1U << 25) #define ICSR_PENDSTSET (0x1U << 26) #define ICSR_PENDSVCLR (0x1U << 27) #define ICSR_PENDSVSET (0x1U << 28) #define ICSR_NMIPENDSET (0x1U << 31) #define AIRCR_VECTKEY 0x05FA0000U #define AIRCR_PRIGROUP_MASK (0x7U << 8) #define AIRCR_PRIGROUP(n) ((n##U) << 8) /** * @brief Structure representing the FPU I/O space. */ typedef struct { IOREG32 unused1[1]; IOREG32 FPCCR; IOREG32 FPCAR; IOREG32 FPDSCR; IOREG32 MVFR0; IOREG32 MVFR1; } CMx_FPU; /** * @brief FPU peripheral base address. */ #define FPUBase ((CMx_FPU *)0xE000EF30U) #define SCB_FPCCR (FPUBase->FPCCR) #define SCB_FPCAR (FPUBase->FPCAR) #define SCB_FPDSCR (FPUBase->FPDSCR) #define SCB_MVFR0 (FPUBase->MVFR0) #define SCB_MVFR1 (FPUBase->MVFR1) #define FPCCR_ASPEN (0x1U << 31) #define FPCCR_LSPEN (0x1U << 30) #define FPCCR_MONRDY (0x1U << 8) #define FPCCR_BFRDY (0x1U << 6) #define FPCCR_MMRDY (0x1U << 5) #define FPCCR_HFRDY (0x1U << 4) #define FPCCR_THREAD (0x1U << 3) #define FPCCR_USER (0x1U << 1) #define FPCCR_LSPACT (0x1U << 0) #define FPDSCR_AHP (0x1U << 26) #define FPDSCR_DN (0x1U << 25) #define FPDSCR_FZ (0x1U << 24) #define FPDSCR_RMODE(n) ((n##U) << 22) /** * @brief Structure representing the DWT I/O space. */ typedef struct { IOREG32 CTRL; IOREG32 CYCCNT; IOREG32 CPICNT; IOREG32 EXCCNT; IOREG32 SLEEPCNT; IOREG32 LSUCNT; IOREG32 FOLDCNT; IOREG32 PCSR; } CMx_DWT; /** * @brief DWT peripheral base address. */ #define DWTBase ((CMx_DWT *)0xE0001000U) #define DWT_CTRL (DWTBase->CTRL) #define DWT_CYCCNT (DWTBase->CYCCNT) #define DWT_CPICNT (DWTBase->CPICNT) #define DWT_EXCCNT (DWTBase->EXCCNT) #define DWT_SLEEPCNT (DWTBase->SLEEPCNT) #define DWT_LSUCNT (DWTBase->LSUCNT) #define DWT_FOLDCNT (DWTBase->FOLDCNT) #define DWT_PCSR (DWTBase->PCSR) #define DWT_CTRL_CYCCNTENA (0x1U << 0) #ifdef __cplusplus extern "C" { #endif void nvicEnableVector(uint32_t n, uint32_t prio); void nvicDisableVector(uint32_t n); void nvicSetSystemHandlerPriority(uint32_t handler, uint32_t prio); #ifdef __cplusplus } #endif #endif /* _NVIC_H_ */ /** @} */