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How to debug vpss(M3) using XDS560 in DM8168 dvr(02.80.00.10) when running mcfw demo code.

Other Parts Discussed in Thread: TVP5158

When running the mcfw demo ,i select  the 6: VCAP + VDIS  - NO Encode or Decode,after almost 30 minutes the HDMI  was no output video.When i restart the demo,the will halt at 

 Enter Choice: 6
--------------- CHANNEL DETAILS-------------
Capture Channels => 16
Disp Channels => 16
-------------------------------------------
 0: SYSTEM: System Common Init in progress !!!
 0: SYSTEM: IPC init in progress !!!
12: SYSTEM: Opening MsgQ Heap [IPC_MSGQ_MSG_HEAP] ... <-------------------------------------halt

Is there any way to debug the vpss(M3) when runnung demo? If  the TVP5158 clock(108MHZ) was unstability,the output will be  interrupt?

Any help I will appreciate it.thanks.