IP Core interface

[KOVI89alipes]

Hi, when you open Vivado HLS project (Vivado 2020, if it matters), you can add port directives. But in the pop-up menu only few possible interfaces are available

• s_axilite
• ap_ctrl_none
• ap_ctrl_hs
• ap_ctrl_chain

https://www.xilinx.com/html_docs/xilinx2017_4/sdaccel_doc/jit1504034365862.html

But why there is no m_axi interface in the list? How does Vivado decide that full axi interface is not applicable here? Is it possible to update HLS project to make m_axi interface available?

Thank you

[thesps]

Hi. Are you using the hls4ml function a the top level of the kernel? You likely need to wrap the hls4ml 'myproject' function in some code to read data from your interface, write into the NN and write back to your interface. You could take this as a starting point: https://github.com/drankincms/hls4ml_c/blob/master/src/aws_hls4ml.cpp