some questions about XINTF of TMS320F2812

Hi,

I have some questions:

1, Now I am using XINTF of TMS320F2812 for CPLD. Part of my codes are copied as follows:

#include "f2812a.h"

#define LBDS (*((unsigned int *)0xc0000)) // use zone2 

#define CPLD_QEP (*((unsigned int *)0x2003))// use zone0 and address wire A0 and A1

void Delay(unsigned int nDelay);

main()

{

unsigned int uLED[4]={1,2,4,8}; // control four leds

int i;

unsigned int readqep = 0;

InitSysCtrl();

while ( 1 )

{

  readqep=CPLD_QEP;  // read cpld data bus?

for ( i=0;i<4;i++ )

{

LBDS=uLED[i];

Delay(256);

}

for ( i=3;i>=0;i-- )

{

LBDS=uLED[i];

Delay(256);

}

}

}

  when the codes run on my board,   I checked out XZCS2 pin in scope, It is giving a signal output  with spikes, and the maximum voltage is 1.6V;

  Then I checked out XZCS0AND1 pin that controlled cpld, it is giving a high level signal of 3.3V . It is meaning my cpld does't work and 2812 can't read data from cpld.

What's the problem with my program or design?  Could someone give me help? thanks very much.

2. I also checked out the XCLKOUT pin, the maximum voltage is 2.16v, the minum voltage is 1.08v , Is it right or not?

thanks