DM8168 capturelink failed

开发板类型：DM816X-EVM
开发包：DVRRDK3.0

运行link_api_demos历程，未改该例程任何一行代码，出现如下错误：

 ============
 Chain Select
 ============

 Current System Settings,
 NSF Mode              : SNF + TNF

 Connect right video sources to VIP ports, this will be input for Sii9233a

 1: Double CH Cap + Dis                                    (VIP:  2x Sii9233a)
 2: Double CH Cap + SwMs + Dis                             (VIP:  2x Sii9233a)
 3: Double CH Cap + Enc + Dec + Dis                        (VIP:  2x Sii9233a)
 4: Double CH Cap + Enc + RTSP                             (VIP:  2x Sii9233a)
 
 x: Exit
 
 Enter Choice: 1
 
 3573: CHAINS  : CPU Revision [ES2.0] !!!
 3573: CHAINS  : Detected [2x SIL1161A, 2x TVP7002 Catalog] Board !!!
 3573: CHAINS  : Base Board Revision [REV B] !!!
 3573: CHAINS  : Daughter Card Revision [REV A] !!!

 [host] Set auto detecting video standard mode (y/n): y

 [host] Set auto detecting video standard mode (y/n): y

8186:!!!SLAVE CORE [VPSS-M3] DOWN!!!
SystemLink_copySlaveCoreExceptionContext:146
mmap of [0xbe9e0000:36864]
mmap virt addresss:0x40077000
munmap of [0x40077000:36864]
SystemLink_copySlaveCoreExceptionContext:153
 [m3vpss ]  21157: CAPTURE: Create in progress !!!
 [m3vpss ]  21158: Assertion @ Line: 2683 in links_m3vpss/capture/captureLink_drv.c: videoDecoderHandle != NULL : failed !!!

查看代码，发现在chains_doubleChCapDis.c文件的创建capturelink时出错
System_linkCreate(captureId, &capturePrm, sizeof(capturePrm));

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