Issue when using Vivado 2020.2
When using Vivado 2020.2 in RTL mode of insertion, the design implementation can fail with the following message:
“ERROR: [Designutils 20-1353] No cell is specified in file ‘path/exostiv_top.edf’. The design is empty. This error may be caused by insufficient disk space”.
Because of an issue in Vivado 2020.2, Vivado exports the Exostiv IP netlist as an encrypted netlist, preventing from using it for insertion and implementation.
From our investigations, this issue occurs when using Exostiv Dashboard in RTL flow, with a non-project Vivado project.
This issue was reported by Xilinx in the following article: https://www.xilinx.com/support/answers/76191.html.
– Upgrade to Vivado version 2020.2.2 and install the proposed patch.
– Downgrade Vivado to version 2020.1
– Use Exostiv Dashboard in netlist mode or use Vivado in ‘project’ mode.