Manoj:

first . thank your answer again.

(1) Do you have a common XRS on the board which holds multiple DSP / microcontrollers in reset? 

      NO. TMS28035 XRS pin  via  a 2K resister to DC3.3V ,that is example by TI controlboard circuit.

(2) Do you observe the same problem with multiple DSP? ( I mean did you try changing using another DSP?)

      NO. I don't  want  to replace another DSP , that  will  rework  to program code again. 

(3) Do you have any reason why you have to pull the XRS to ground .... then .....power up your board.... then .... release XRS? 

      If I do not do this program will be the wrong execution (the motor does not stop)  , do you know TPS3808G01  supervisory  ? 

      I'm contact with my Local  FAE , maybe It can cancel this problem. I think that is only solutions by experiment.

(4) Is everything working fine when you run the device with emulator connected? Do you see ADC results go above 400 and below 300. 
    Are the PWM interrupts firing as expected.

     (1)  yes. everything working fine when I use XDS100V2  to  execute  same code.  

     (2)  yse  I can  see  ADC  result  value from  CCS4  of  watch windows.  in this condition  I can see that right  A/D-Value both 

          ( pwm1 interrupts and force software A/D convert)

           when the TMS28035 run  in stand-alone MODE  also  I can see the A/D value is right  via RS-232  to my notebook.

thank you verymuch. 

Best Regards

dowsheng.