GPIO.rar_tinym0 ucgui_周立功 tinym0

/********************************************************************************************************* ** @file: core_cm0.c ** @purpose: CMSIS Cortex-M0 Core Peripheral Access Layer Source File ** @version: V1.0 ** @date: 12. Nov. 2008 **-------------------------------------------------------------------------------------------------------- ** ** Copyright (C) 2008 ARM Limited. All rights reserved. ** ** ARM Limited (ARM) is supplying this software for use with Cortex-M0 ** processor based microcontrollers. This file can be freely distributed ** within development tools that are supporting such ARM based processors. ** ** THIS SOFTWARE IS PROVIDED "AS IS". NO WARRANTIES, WHETHER EXPRESS, IMPLIED ** OR STATUTORY, INCLUDING, BUT NOT LIMITED TO, IMPLIED WARRANTIES OF ** MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. ** ARM SHALL NOT, IN ANY CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR ** CONSEQUENTIAL DAMAGES, FOR ANY REASON WHATSOEVER. ** *********************************************************************************************************/ #include <stdint.h> /********************************************************************************************************* define compiler specific symbols *********************************************************************************************************/ #if defined ( __CC_ARM ) #define __ASM __asm /*!< asm keyword for armcc */ #define __INLINE __inline /*!< inline keyword for armcc */ #elif defined ( __ICCARM__ ) #define __ASM __asm /*!< asm keyword for iarcc */ #define __INLINE inline /*!< inline keyword for iarcc. */ /*!< Only avaiable in High */ /*!< optimization mode! */ #define __nop __no_operation /*!< no operation intrinsic in */ /*!< iarcc */ #elif defined ( __GNUC__ ) #define __ASM asm /*!< asm keyword for gcc */ #define __INLINE inline /*!< inline keyword for gcc */ #endif #if (defined (__ARMCC_VERSION)) && (__ARMCC_VERSION < 400000) /********************************************************************************************************* ** @brief Return the Process Stack Pointer ** ** @param none ** @return uint32_t ProcessStackPointer ** ** Return the actual process stack pointer *********************************************************************************************************/ __ASM uint32_t __get_PSP(void) { mrs r0, psp bx lr } /********************************************************************************************************* ** @brief Set the Process Stack Pointer ** ** @param uint32_t Process Stack Pointer ** @return none ** ** Assign the value ProcessStackPointer to the MSP ** (process stack pointer) Cortex processor register *********************************************************************************************************/ __ASM void __set_PSP(uint32_t topOfProcStack) { msr psp, r0 bx lr } /********************************************************************************************************* ** @brief Return the Main Stack Pointer ** ** @param none ** @return uint32_t Main Stack Pointer ** ** Return the current value of the MSP (main stack pointer) ** Cortex processor register *********************************************************************************************************/ __ASM uint32_t __get_MSP(void) { mrs r0, msp bx lr } /********************************************************************************************************* ** @brief Set the Main Stack Pointer ** ** @param uint32_t Main Stack Pointer ** @return none ** ** Assign the value mainStackPointer to the MSP ** (main stack pointer) Cortex processor register *********************************************************************************************************/ __ASM void __set_MSP(uint32_t mainStackPointer) { msr msp, r0 bx lr } /********************************************************************************************************* ** @brief Return the Base Priority value ** ** @param none ** @return uint32_t BasePriority ** ** Return the content of the base priority register *********************************************************************************************************/ __ASM uint32_t __get_BASEPRI(void) { mrs r0, basepri bx lr } /********************************************************************************************************* ** @brief Set the Base Priority value ** ** @param uint32_t BasePriority ** @return none ** ** Set the base priority register *********************************************************************************************************/ __ASM void __set_BASEPRI(uint32_t basePri) { msr basepri, r0 bx lr } /********************************************************************************************************* ** @brief Return the Priority Mask value ** ** @param none ** @return uint32_t PriMask ** ** Return the state of the priority mask bit from the priority mask ** register *********************************************************************************************************/ __ASM uint32_t __get_PRIMASK(void) { mrs r0, primask bx lr } /********************************************************************************************************* ** @brief Set the Priority Mask value ** ** @param uint32_t PriMask ** @return none ** ** Set the priority mask bit in the priority mask register *********************************************************************************************************/ __ASM void __set_PRIMASK(uint32_t priMask) { msr primask, r0 bx lr } /********************************************************************************************************* ** @brief Return the Fault Mask value ** ** @param none ** @return uint32_t FaultMask ** ** Return the content of the fault mask register *********************************************************************************************************/ __ASM uint32_t __get_FAULTMASK(void) { mrs r0, faultmask bx lr } /********************************************************************************************************* ** @brief Set the Fault Mask value ** ** @param uint32_t faultMask value ** @return none ** ** Set the fault mask register *********************************************************************************************************/ __ASM void __set_FAULTMASK(uint32_t faultMask) { msr faultmask, r0 bx lr } /********************************************************************************************************* ** @brief Return the Control Register value ** ** @param none ** @return uint32_t Control value ** ** Return the content of the control register *********************************************************************************************************/ __ASM uint32_t __get_CONTROL(void) { mrs r0, control bx lr } /********************************************************************************************************* ** @brief Set the Control Register value ** ** @param uint32_t Control value ** @return none ** ** Set the control register *************************