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