高云GW1NSR4C的M3硬核应用串口通信Keil工程文件

/**************************************************************************//** * @file core_cm3.c * @brief CMSIS Cortex-M3 Core Peripheral Access Layer Source File * @version V1.30 * @date 30. October 2009 * * @note * Copyright (C) 2009 ARM Limited. All rights reserved. * * @par * ARM Limited (ARM) is supplying this software for use with Cortex-M * processor based microcontrollers. This file can be freely distributed * within development tools that are supporting such ARM based processors. * * @par * 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 ARM Compiler */ #define __INLINE __inline /*!< inline keyword for ARM Compiler */ #elif defined ( __ICCARM__ ) #define __ASM __asm /*!< asm keyword for IAR Compiler */ #define __INLINE inline /*!< inline keyword for IAR Compiler. Only avaiable in High optimization mode! */ #elif defined ( __GNUC__ ) #define __ASM __asm /*!< asm keyword for GNU Compiler */ #define __INLINE inline /*!< inline keyword for GNU Compiler */ #elif defined ( __TASKING__ ) #define __ASM __asm /*!< asm keyword for TASKING Compiler */ #define __INLINE inline /*!< inline keyword for TASKING Compiler */ #endif /* ################### Compiler specific Intrinsics ########################### */ #if defined ( __CC_ARM ) /*------------------RealView Compiler -----------------*/ /* ARM armcc specific functions */ /** * @brief Return the Process Stack Pointer * * @return 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 topOfProcStack Process Stack Pointer * * 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 * * @return 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 topOfMainStack Main Stack Pointer * * 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 Reverse byte order in unsigned short value * * @param value value to reverse * @return reversed value * * Reverse byte order in unsigned short value */ __ASM uint32_t __REV16(uint16_t value) { rev16 r0, r0 bx lr } /** * @brief Reverse byte order in signed short value with sign extension to integer * * @param value value to reverse * @return reversed value * * Reverse byte order in signed short value with sign extension to integer */ __ASM int32_t __REVSH(int16_t value) { revsh r0, r0 bx lr } #if (__ARMCC_VERSION < 400000) /** * @brief Remove the exclusive lock created by ldrex * * Removes the exclusive lock which is created by ldrex. */ __ASM void __CLREX(void) { clrex } /** * @brief Return the Base Priority value * * @return 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 basePri BasePriority * * Set the base priority register */ __ASM void __set_BASEPRI(uint32_t basePri) { msr basepri, r0 bx lr } /** * @brief Return the Priority Mask value * * @return PriMask * * Return 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 priMask PriMask * * 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 * * @return 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 faultMask faultMask value * * Set the fault mask register */ __ASM void __set_FAULTMASK(uint32_t faultMask) { msr faultmask, r0 bx lr } /** * @brief Return the Control Register value * * @return 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 control Control value * * Set the control register */ __ASM void __set_CONTROL(uint32_t control) { msr control, r0 bx lr } #endif /* __ARMCC_VERSION */ #elif (defined (__ICCARM__)) /*------------------ ICC Compiler -------------------*/ /* IAR iccarm specific functions */ #pragma diag_suppress=Pe940 /** * @brief Return the Process Stack Pointer * * @return ProcessStackPointer * * Return the actual process stack pointer */ uint32_t __get_PSP(void) { __ASM("mrs r0, psp"); __ASM("bx lr"); } /** * @brief Set the Process Stack Pointer * * @param topOfProcStack Process Stack Pointer * * Assign the value ProcessStackPointer to the MSP * (process stack pointer) Cortex processor register */ void __set_PSP(uint32_t topOfProcStack) { __ASM("msr psp, r0"); __ASM("bx lr"); } /** * @brief Return the Main Stack Pointer * * @return Main Stack Pointer * * Return the current value of the MSP (main stack pointer) * Cortex processor register */ uint32_t __get_MSP(void) { __ASM("mrs r0, msp"); __ASM("bx lr"); } /** * @brief Set the Main Stack Pointer * * @param topOfMainStack Main Stack Pointer * * Assign the value mainStackPointer to the MSP * (main stack pointer) Cortex processor register */ void __set_MSP(uint32_t topOfMainStack) { __ASM("msr msp, r0"); __ASM("bx lr"); } /** * @brief Reverse byte order in unsigned short value * * @param value value to reverse * @return reversed value * * Reverse byte order in unsigned short value */ uint32_t __REV16(uint16_t value) { __ASM("rev16 r0, r0"); __ASM("bx lr"); } /** * @brief Reverse bit order of value * * @param value value to reverse * @return reversed value * * Reverse bit order of value */ uint32_t __RBIT(uint32_t value) { __ASM("rbit r0, r0"); __ASM("bx lr"); } /** * @brief LDR Exclusive (8 bit) * * @param *addr address pointer * @return value of (*address) * * Exclusive LDR command for 8 bit values) */ uint8_t __LDREXB(uint8_t *addr) { __ASM("ldrexb r0, [r0]"); __ASM("bx lr"); } /** * @brief LDR