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Access violation at Addr. .... during simulation in Keil C166

Hallo ,everyone!

I have just working with Matlab RTW and Keil IDE for the code development of Infineon XC164CS. The idea is so: with the environment of MATLAB/Simulink I can model, then use RTW for code generation. Here I use Embedded Target for OSEK/VDX, and I have developed the blocks for XC164 hw driver using the S-Function mechanism. And based on the open source uc/os II for xc164, I can compile the generated codes from RTW together with uc/os II. Complicated?
By now I have finished the most parts of the job. The problem is, after compiling and linking (without Errors and Warnings), I get ever the following error message from Keil IDE under debug mode.
*** error 65: access violation: addr=0x00C00004

The souce codes is as following (Predigestion has been done for easy checking):
I wonder, if I can attach the project file.

Thanks for tips

in file main.c

/*
 * Auto generated OSEK main program for model: osek_empty1
 *
 * Real-Time Workshop file version      : 5.1 $Date: 2003/08/08 18:37:24 $
 * Real-Time Workshop file generated on : Thu Dec 18 09:00:00 2008
 * C source code generated on           : Thu Dec 18 09:00:00 2008
 *
 * Description:
 *    OSEK target top-level, osek_empty1.c.
 *
 */
/* Model's headers */
#include "osek_empty1.h"
#include "osek_empty1_private.h"
#include "main.h"

/* Using RTW singletasking execution of model */
OS_STK a[10];
OS_STK b[10];
extern void GPT1_vInit(void);
void main(void)
{
  OSInit();
  GPT1_vInit();

  osek_empty1_initialize(1);
  OSTaskCreate(InitA, (void*)0, &a[9],10);
  OSTaskCreate(InitB, (void*)0, &b[9],11);

  OSStart();
}

in file model.c

/*
 * Real-Time Workshop code generation for Simulink model "osek_empty1.mdl".
 *
 * Model Version                        : 1.69
 * Real-Time Workshop file version      : 5.1 $Date: 2003/08/08 18:37:24 $
 * Real-Time Workshop file generated on : Thu Dec 18 09:00:00 2008
 * TLC version                          : 5.1 (Aug  8 2003)
 * C source code generated on           : Thu Dec 18 09:00:00 2008
 */

#include "osek_empty1.h"
#include "osek_empty1_private.h"

#include "main.h"


/* Model step function */
void osek_empty1_step(void){
  /* (no output code required) */

  /* (no update code required) */
}

 void InitA(void *pdata)
{
//      INT8U err;
        pdata = pdata;
        while (1)
   {
   osek_empty1_initialize(1);
   }
}
 void InitB(void *pdata)
{
//      INT8U err;

        pdata = pdata;
        while (1)
   {
   osek_empty1_initialize(1);
   }
}
/* Model initialize function */
void osek_empty1_initialize(boolean_T firstTime)
{
  if(firstTime)
  {;}/* (no initialization code required) */
}

/* Model terminate function */
void osek_empty1_terminate(void)
{
  /* (no terminate code required) */
}

void GPT1_vInit(void)
{


  GPT12E_T3CON   =  0x0003;      // load timer 3 control register
  GPT12E_T3      =  0x85EE;      // load timer 3 register


  GPT12E_T2CON   =  0x0000;      // load timer 2 control register
  GPT12E_T2      =  0x9E58;      // load timer 2 register


} //  End of function GPT1_vInit