/********************************************************************* * SEGGER MICROCONTROLLER GmbH & Co. KG * * Solutions for real time microcontroller applications * ********************************************************************** * * * (c) 2014 - 2016 SEGGER Microcontroller GmbH & Co. KG * * * * www.segger.com Support: support@segger.com * * * ********************************************************************** * * * SEGGER RTT * Real Time Transfer for embedded targets * * * ********************************************************************** * * * All rights reserved. * * * * * This software may in its unmodified form be freely redistributed * * in source form. * * * The source code may be modified, provided the source code * * retains the above copyright notice, this list of conditions and * * the following disclaimer. * * * Modified versions of this software in source or linkable form * * may not be distributed without prior consent of SEGGER. * * * This software may only be used for communication with SEGGER * * J-Link debug probes. * * * * 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 SEGGER Microcontroller 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. * * * ********************************************************************** * * * RTT version: 5.12e * * * ********************************************************************** ---------------------------------------------------------------------- File : SEGGER_RTT_Conf.h Purpose : Implementation of SEGGER real-time transfer (RTT) which allows real-time communication on targets which support debugger memory accesses while the CPU is running. ---------------------------END-OF-HEADER------------------------------ */ #ifndef SEGGER_RTT_CONF_H #define SEGGER_RTT_CONF_H #ifdef __ICCARM__ #include #endif /********************************************************************* * * Defines, configurable * ********************************************************************** */ #define SEGGER_RTT_MAX_NUM_UP_BUFFERS (2) // Max. number of up-buffers (T->H) available on this target (Default: 2) #define SEGGER_RTT_MAX_NUM_DOWN_BUFFERS (2) // Max. number of down-buffers (H->T) available on this target (Default: 2) #define BUFFER_SIZE_UP (1024) // Size of the buffer for terminal output of target, up to host (Default: 1k) #define BUFFER_SIZE_DOWN (16) // Size of the buffer for terminal input to target from host (Usually keyboard input) (Default: 16) #define SEGGER_RTT_PRINTF_BUFFER_SIZE (64u) // Size of buffer for RTT printf to bulk-send chars via RTT (Default: 64) #define SEGGER_RTT_MODE_DEFAULT SEGGER_RTT_MODE_NO_BLOCK_SKIP // Mode for pre-initialized terminal channel (buffer 0) // // Target is not allowed to perform other RTT operations while string still has not been stored completely. // Otherwise we would probably end up with a mixed string in the buffer. // If using RTT from within interrupts, multiple tasks or multi processors, define the SEGGER_RTT_LOCK() and SEGGER_RTT_UNLOCK() function here. // // SEGGER_RTT_MAX_INTERRUPT_PRIORITY can be used in the sample lock routines on Cortex-M3/4. // Make sure to mask all interrupts which can send RTT data, i.e. generate SystemView events, or cause task switches. // When high-priority interrupts must not be masked while sending RTT data, SEGGER_RTT_MAX_INTERRUPT_PRIORITY needs to be adjusted accordingly. // (Higher priority = lower priority number) // Default value for embOS: 128u // Default configuration in FreeRTOS: configMAX_SYSCALL_INTERRUPT_PRIORITY: ( configLIBRARY_MAX_SYSCALL_INTERRUPT_PRIORITY << (8 - configPRIO_BITS) ) // In case of doubt mask all interrupts: 0u // #define SEGGER_RTT_MAX_INTERRUPT_PRIORITY (0x20) // Interrupt priority to lock on SEGGER_RTT_LOCK on Cortex-M3/4 (Default: 0x20) /********************************************************************* * * RTT lock configuration for SEGGER Embedded Studio, * Rowley CrossStudio and GCC */ #if (defined __SES_ARM) || (defined __CROSSWORKS_ARM) || (defined __GNUC__) #ifdef __ARM_ARCH_6M__ #define SEGGER_RTT_LOCK() { \ unsigned int LockState; \ __asm volatile ("mrs %0, primask \n\t" \ "mov r1, $1 \n\t" \ "msr primask, r1 \n\t" \ : "=r" (LockState) \ : \ : "r1" \ ); #define SEGGER_RTT_UNLOCK() __asm volatile ("msr primask, %0 \n\t" \ : \ : "r" (LockState) \ : \ ); \ } #elif (defined(__ARM_ARCH_7M__) || defined(__ARM_ARCH_7EM__)) #ifndef SEGGER_RTT_MAX_INTERRUPT_PRIORITY #define SEGGER_RTT_MAX_INTERRUPT_PRIORITY (0x20) #endif #define SEGGER_RTT_LOCK() { \ unsigned int LockState; \ __asm volatile ("mrs %0, basepri \n\t" \ "mov r1, %1 \n\t" \ "msr basepri, r1 \n\t" \ : "=r" (LockState) \ : "i"(SEGGER_RTT_MAX_INTERRUPT_PRIORITY) \ : "r1" \ ); #define SEGGER_RTT_UNLOCK() __asm volatile ("msr basepri, %0 \n\t" \ : \ : "r" (LockState) \ : \ ); \ } #elif defined(__ARM_ARCH_7A__) #define SEGGER_RTT_LOCK() { \ unsigned int LockState; \ __asm volatile ("mrs r1, CPSR \n\t" \ "mov %0, r1 \n\t" \ "orr r1, r1, #0xC0 \n\t" \ "msr CPSR_c, r1 \n\t" \ : "=r" (LockState) \ : \ : "r1" \ ); #define SEGGER_RTT_UNLOCK() __asm volatile ("mov r0, %0 \n\t" \ "mrs r1, CPSR \n\t" \ "bic r1, r1, #0xC0 \n\t" \ "and r0, r0, #0xC0 \n\t" \ "orr r1, r1, r0 \n\t" \ "msr CPSR_c, r1 \n\t" \ : \ : "r" (LockState) \ : "r0", "r1" \ ); \ } #else #define SEGGER_RTT_LOCK() #define SEGGER_RTT_UNLOCK() #endif #endif /********************************************************************* * * RTT lock configuration for IAR EWARM */ #ifdef __ICCARM__ #if (defined (__ARM6M__) && (__CORE__ == __ARM6M__)) #define SEGGER_RTT_LOCK() { \ unsigned int LockState; \ LockState = __get_PRIMASK(); \ __set_PRIMASK(1); #define SEGGER_RTT_UNLOCK() __set_PRIMASK(LockState); \ } #elif ((defined (__ARM7EM__) && (__CORE__ == __ARM7EM__)) || (defined (__ARM7M__) && (__CORE__ == __ARM7M__))) #ifndef SEGGER_RTT_MAX_INTERRUPT_PRIORITY #define SEGGER_RTT_MAX_INTERRUPT_PRIORITY (0x20) #endif #define SEGGER_RTT_LOCK() { \ unsigned int LockState; \ LockState = __get_BASEPRI(); \ __set_BASEPRI(SEGGER_RTT_MAX_INTERRUPT_PRIORITY); #define SEGGER_RTT_UNLOCK() __set_BASEPRI(LockState); \ } #endif #endif /********************************************************************* * * RTT lock configuration for KEIL ARM */ #ifdef __CC_ARM #if (defined __TARGET_ARCH_6S_M) #define SEGGER_RTT_LOCK() { \ unsigned int LockState; \ register unsigned char PRIMASK __asm( "primask"); \ LockState = PRIMASK; \ PRIMASK = 1u; \ __schedule_barrier(); #define SEGGER_RTT_UNLOCK() PRIMASK = LockState; \ __schedule_barrier(); \ } #elif (defined(__TARGET_ARCH_7_M) || defined(__TARGET_ARCH_7E_M)) #ifndef SEGGER_RTT_MAX_INTERRUPT_PRIORITY #define SEGGER_RTT_MAX_INTERRUPT_PRIORITY (0x20) #endif #define SEGGER_RTT_LOCK() { \ unsigned int LockState; \ register unsigned char BASEPRI __asm( "basepri"); \ LockState = BASEPRI; \ BASEPRI = SEGGER_RTT_MAX_INTERRUPT_PRIORITY; \ __schedule_barrier(); #define SEGGER_RTT_UNLOCK() BASEPRI = LockState; \ __schedule_barrier(); \ } #endif #endif /********************************************************************* * * RTT lock configuration fallback */ #ifndef SEGGER_RTT_LOCK #define SEGGER_RTT_LOCK() // Lock RTT (nestable) (i.e. disable interrupts) #endif #ifndef SEGGER_RTT_UNLOCK #define SEGGER_RTT_UNLOCK() // Unlock RTT (nestable) (i.e. enable previous interrupt lock state) #endif #endif /*************************** End of file ****************************/