_InitRSTC() {
    __writeMemory32(0xA5000001, 0xFFFFFD08,"Memory");    // Allow user reset
}

_InitPLL() {

    __message "Set Main Oscillator";
    __writeMemory32(0x00004001,0xFFFFFc20,"Memory");    // MOSC
    while( !(__readMemory32(0xFFFFFc68,"Memory") & 0x1)  );

    __message "Set PLL to 96MHz";
    __writeMemory32(0x10483f0e,0xFFFFFc2c,"Memory");    // LOCK
    while( !(__readMemory32(0xFFFFFc68,"Memory") & 0x4)  );

    __message "Set Master Clock to 48MHz";
    __writeMemory32(0x00000004,0xFFFFFc30,"Memory");    // MCKRDY
    while( !(__readMemory32(0xFFFFFc68,"Memory") & 0x8)  );
    __writeMemory32(0x00000007,0xFFFFFc30,"Memory");    // MCKRDY
    while( !(__readMemory32(0xFFFFFc68,"Memory") & 0x8)  );
}


execUserPreload()
{
    Reset();
    Remap_RAM();
    __writeMemory32(0xD3,0x98,"Register");                          // CPSR = SVC mode, ARM, IRQ, FIQ disabled
    
   _InitRSTC();    
}

execUserReset()
{
    Reset();
    
    Remap_RAM();

    __writeMemory32(0xD3,0x98,"Register");                          // CPSR = SVC mode, ARM, IRQ, FIQ disabled
    __writeMemory32(0x00000000,0xB4,"Register");
    
__emulatorSpeed(0);                 // Set JTAG speed to full speed
    
}

__var tmp;
Remap_RAM()
{
    tmp = __readMemory32(0x00200000, "Memory");                     // read from RAM area
    __writeMemory32(~tmp, 0x00200000, "Memory");                    // alter RAM area
    if( ~tmp != __readMemory32(0x00000000, "Memory") )              // check if altering mirrored to remap area
    {
        __writeMemory32(0x00000001, 0xFFFFFF00,"Memory");
    }
    __writeMemory32(tmp, 0x00200000 ,"Memory");                     // restore RAM data
    __message " remap ";
}


Reset()
{
    __message "execUserReset()";
    __emulatorSpeed(30000);             // Set JTAG speed to 30kHz to make a hardware reset
    
    __writeMemory32(0xA5000004, 0xFFFFFD00, "Memory");              // reset the peripherals    
    
    _InitPLL();                         // Allow to debug at JTAG Full Speed
    __emulatorSpeed(0);

}

#if scmRTOS_CONTEXT_SWITCH_SCHEME == 0
    #define OS_INTERRUPT __arm
#else
    #define OS_INTERRUPT __arm __irq
#endif

..........
  if (TimerCounter0)
  {
      TimerCounter0--;
      if (!TimerCounter0)
      {
         TimerCounter0=50000;
         Timer_Ovf.SignalISR();  // доходит до этой строчки, затем доходит до строки " выход из
//  прерывания" и где-то там чип перегружается. Если события не происходит, то всё работает.
      }
  }
    AT91C_BASE_AIC->AIC_EOICR = 0;

} // выход из прерывания.

Loaded macro file: \scm\config\AT91SAM7_FLASH.mac
JTAG speed is set to: 32 kHz
Write memory error @ address 0xFFFFFC20, word access: Core error.
Error in \scm\config\AT91SAM7_FLASH.mac at line 53, col 20: Operation error.
Error while calling macro execUserPreload.
Failed to load debugee: \scm\Exe\slon.d79

                                                                    // Assuming 18.432 MHz osc
    __writeMemory32(0x00190605, 0xFFFFFC2C,"Memory");               // *26/5 set LOCK after 6 SCLK

        template<TPriority pr, word stack_size>
        class process : public TBaseProcess
        {
        public:
            INLINE process() : TBaseProcess(&Stack[stack_size/sizeof(TStackItem)], pr, (void (*)())Exec) { }
            OS_PROCESS static void Exec();

        private:
            TStackItem Stack[stack_size/sizeof(TStackItem)];
        };

    debug_printf("EMAC stack %d  ",DataShower_Proc.Used_Stack_Size());
    debug_printf("DBG stack %d  ",DBG_Output_Proc.Used_Stack_Size());

        do
         {
             EnableContextSwitch();
             DUMMY_INSTR();
             DisableContextSwitch();
         }
         while(!IsContextSwitchDone());