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关于TVP5158补丁的问题?



在IPNC3.5的SDK代码中看到 (DVRRDK 4.0 中也一样)

#if defined(TI_814X_BUILD) || defined(TI_8107_BUILD)
#define DEVICE_TVP5158_NO_PATCH_DOWNLOAD
#endif

不明白为什么在DM8168的平台上面需要加载这个补丁包,在DM8148、DM358 平台可以不需要加载补丁包 ?