Reading the title and looking at the thumbnail, I was thinking, “sure I’ll do a good deed and help out a noob.” Then I read your post and I realized you know what you’re doing better than me.

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What is an “actual target hardware platform”?

I don’t exactly know what you mean but here is the OS and CPU they use.

• Operating System: Linux 5.10 with Buildroot

• CPU: RockChip RV1106G3, Cortex A7 1.0GHz, H264 & H265 hardware encoder

Are you looking for the reference manual?