Can't run in hw with examples of getting started with rtl kernels

[La-tale]

I follow the tutorial of getting started with RTL kernels.
It works fine until building and running example of tutorials in Emulation-HW.
Also it works fine for building example in HW.
However when I run example in HW, it get stucked like below picture.

So I should do xbutil reset for running again this example.

I test various things, and I found that it works fine at ap_ctrl_hls interface, but it didn't work at ap_ctrl_chain interface which this example uses.

Did anyone who follow this example experience this problem?
If yes, how can solve this problem, and what is the cause?

Thank you!

[randyh62]

ap_ctrl_chain is not supported in the RTL kernel. ap_ctrl_hs is the right protocol. We will correct this in the tutorial. Thank you.

[La-tale]

@randyh62
Is it kernel problem??
Then could you let me know when ap_ctrl_chain is used?

[randyh62]

ap_ctrl_chain is the default for C/C++ kernels in Vitis compiler and Vitis HLS. In this tutorial, the RTL code only contains the signals for ap_ctrl_hs as described under Hardware Interface Requirements in the Introduction. If your RTL code has the signals to support ap_ctrl_chain, you can use that protocol on the kernel. Some of this is discussed in XRT Execution Models.