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DM8168中的VP口

Other Parts Discussed in Thread: TVP5158

DM8168有几个VP口呢?System_const.h中#define SYSTEM_CAPTURE_INST_MAX  (4u), 是说DM8168有4个VP口吗?其中又定义#define SYSTEM_CAPTURE_INST_VIP0_PORTA  (0u)       #define SYSTEM_CAPTURE_INST_VIP0_PORTB (1u)   #define SYSTEM_CAPTURE_INST_VIP1_PORTA  (2u)      #define SYSTEM_CAPTURE_INST_VIP1_PORTB  (3u)   为什么4个口又分为A口,B口,0口,1口呢,还是说DM8168只有两个口:A口和B口呢?有点晕