Unconnected Ports - 2022.2 English

Vitis High-Level Synthesis User Guide (UG1399)

Document ID
UG1399
Release Date
2022-12-07
Version
2022.2 English

Vivado HLS accepted unconnected output signals for streamed single and multidimensional arrays.

Vitis HLS allows the following types of unconnected outputs:
  • Unconnected output scalars
  • Unconnected output single and multidimensional arrays implemented as PIPOs when used inside a dataflow region
Vitis HLS does not allow:
  • Unconnected output streams
  • Unconnected output streamed single or multidimensional arrays