Who can tell me how RTX-tiny manage the task stacks in more detail?
Yu Zhou,
It seems that, this forum will help everyone whoever asks for a help. So, I also did something for you. I found an article from Internet talking about "Adding the Priority Feature to RTX51 Tiny with source code". Thus I believe the documentation you are looking for, must be exist somewhere.
But there is one thing you should know: this forum belongs to KEIL, and you already leave you IP-address and Email-address to KEIL; so this is not a good place to ask a question about how to "acquire" KEIL's property.
Be careful, Yu Zhou!!!