rt-thread/components/trace/SystemView_Src_V240/Config/SEGGER_SYSVIEW_Config_RTThread.c

/*********************************************************************
*               SEGGER MICROCONTROLLER GmbH & Co. KG                 *
*       Solutions for real time microcontroller applications         *
**********************************************************************
*                                                                    *
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*                                                                    *
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**********************************************************************
*                                                                    *
*       SEGGER SystemView * Real-time application analysis           *
*                                                                    *
**********************************************************************
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* * This software may in its unmodified form be freely redistributed *
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*   retains the above copyright notice, this list of conditions and  *
*   the following disclaimer.                                        *
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*       SystemView version: V2.38                                    *
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**********************************************************************
-------------------------- END-OF-HEADER -----------------------------

File    : SEGGER_SYSVIEW_Config_RTThread.c
Purpose : Sample setup configuration of SystemView with RT-Thread.
Revision: $Rev: 3735 $
*/
#include "rtthread.h"
#include "SEGGER_SYSVIEW.h"
#include "SEGGER_SYSVIEW_RTThread.h"

//
// SystemcoreClock can be used in most CMSIS compatible projects.
// In non-CMSIS projects define SYSVIEW_CPU_FREQ.
//
extern unsigned int SystemCoreClock;

/*********************************************************************
*
*       Defines, configurable
*
**********************************************************************
*/
// The application name to be displayed in SystemViewer
#ifndef   SYSVIEW_APP_NAME
  #define SYSVIEW_APP_NAME        "RT-Thread Trace"
#endif

// The target device name
#ifndef   SYSVIEW_DEVICE_NAME
  #define SYSVIEW_DEVICE_NAME     "Cortex-M4"
#endif

// Frequency of the timestamp. Must match SEGGER_SYSVIEW_Conf.h
#ifndef   SYSVIEW_TIMESTAMP_FREQ
  #define SYSVIEW_TIMESTAMP_FREQ  (SystemCoreClock)
#endif

// System Frequency. SystemcoreClock is used in most CMSIS compatible projects.
#ifndef   SYSVIEW_CPU_FREQ
  #define SYSVIEW_CPU_FREQ        (SystemCoreClock)
#endif

// The lowest RAM address used for IDs (pointers)
#ifndef   SYSVIEW_RAM_BASE
  #define SYSVIEW_RAM_BASE        (0x20000000)
#endif

#ifndef   SYSVIEW_SYSDESC0
  #define SYSVIEW_SYSDESC0        "I#15=SysTick"
#endif

// Define as 1 if the Cortex-M cycle counter is used as SystemView timestamp. Must match SEGGER_SYSVIEW_Conf.h
#ifndef   USE_CYCCNT_TIMESTAMP
  #define USE_CYCCNT_TIMESTAMP    1
#endif

#ifndef   SYSVIEW_SYSDESC1
  #define SYSVIEW_SYSDESC1      "I#53=IntUart1,I#77=IntEth0"
#endif

//#ifndef   SYSVIEW_SYSDESC2

//  #define SYSVIEW_SYSDESC2      ""
//#endif

/*********************************************************************
*
*       Defines, fixed
*
**********************************************************************
*/
#define DWT_CTRL                  (*(volatile rt_uint32_t*) (0xE0001000uL))  // DWT Control Register
#define NOCYCCNT_BIT              (1uL << 25)                           // Cycle counter support bit
#define CYCCNTENA_BIT             (1uL << 0)                            // Cycle counter enable bit

/*********************************************************************
*
*       _cbSendSystemDesc()
*
*  Function description
*    Sends SystemView description strings.
*/
static void _cbSendSystemDesc(void) {
  SEGGER_SYSVIEW_SendSysDesc("N="SYSVIEW_APP_NAME",O=RTThread,D="SYSVIEW_DEVICE_NAME);
#ifdef SYSVIEW_SYSDESC0
  SEGGER_SYSVIEW_SendSysDesc(SYSVIEW_SYSDESC0);
#endif
#ifdef SYSVIEW_SYSDESC1
  SEGGER_SYSVIEW_SendSysDesc(SYSVIEW_SYSDESC1);
#endif
#ifdef SYSVIEW_SYSDESC2
  SEGGER_SYSVIEW_SendSysDesc(SYSVIEW_SYSDESC2);
#endif
}

extern const SEGGER_SYSVIEW_OS_API SYSVIEW_X_OS_TraceAPI;
/*********************************************************************
*
*       Global functions
*
**********************************************************************
*/
void SEGGER_SYSVIEW_Conf(void) {
#if USE_CYCCNT_TIMESTAMP
  //
  //  The cycle counter must be activated in order
  //  to use time related functions.
  //
  if ((DWT_CTRL & NOCYCCNT_BIT) == 0) {       // Cycle counter supported?
    if ((DWT_CTRL & CYCCNTENA_BIT) == 0) {    // Cycle counter not enabled?
      DWT_CTRL |= CYCCNTENA_BIT;              // Enable Cycle counter
    }
  }
#endif
  SEGGER_SYSVIEW_Init(SYSVIEW_TIMESTAMP_FREQ, SYSVIEW_CPU_FREQ,
                      &SYSVIEW_X_OS_TraceAPI, _cbSendSystemDesc);
  SEGGER_SYSVIEW_SetRAMBase(SYSVIEW_RAM_BASE);
}

/*************************** End of file ****************************/