axi_stream_work

This repository will reflect axi stream based IP designs

• tested on Vivado 2020.2
• axi stream keep signal used to address null butes in last data word transmission
• axi stream EMPTY bytes disabled by the KEEP bits are assumed to be all ZEROs
• required enabled bytes by the axi_tkeep signal assumed to be all high successively, without any zero bit in between
• testbench covers basic level manual axi stream word generation, tested last word corner cases