2812硬件仿真速度较快,但下载到FLASH中运行速度下降10倍左右,可能初始设置有问题,请高手帮忙.

void InitFlash(void)
{
  EALLOW;
  //Enable Flash Pipeline mode to improve performance
  //of code executed from Flash.
  FlashRegs.FOPT.bit.ENPIPE = 1;

   //Set the Random Waitstate for the Flash
  FlashRegs.FBANKWAIT.bit.RANDWAIT = 5;
  
  //Set the Paged Waitstate for the Flash
  FlashRegs.FBANKWAIT.bit.PAGEWAIT = 5;
  
   //Set number of cycles to transition from sleep to standby
  FlashRegs.FSTDBYWAIT.bit.STDBYWAIT = 0x01FF;   
  
  //Set number of cycles to transition from standby to active
  FlashRegs.FACTIVEWAIT.bit.ACTIVEWAIT = 0x01FF;  
  EDIS;

.

  asm(" RPT #7 || NOP";
}   

void InitPll(Uint16 val)
{
  volatile Uint16 iVol;  
   
   EALLOW;
   SysCtrlRegs.PLLCR.bit.DIV = 6;
   /////////////////////////////add
   XintfRegs.XINTCNF2.bit.CLKOFF=1 ;//off clkout
    XintfRegs.XINTCNF2.bit.WRBUFF=3 ;//
    XintfRegs.XINTCNF2.bit.CLKMODE=0;//
     XintfRegs.XINTCNF2.bit.XTIMCLK=0;//=sysclk
   ///////////////////////////////////////////
    SysCtrlRegs.HISPCP.all = 0x0007; //low clk
    SysCtrlRegs.LOSPCP.all = 0x0007; //low clk
   EDIS;
  
   
   
     for(iVol= 0; iVol< ( (131072/2)/12 ); iVol++)
   {
  
   }
  }
   
}