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AR# 65406

2015.3 Vivado Synthesis - ERROR: [Synth 8-27] complex assignment not supported.

Description

I am receiving the following error in Vivado Synthesis:

ERROR: [Synth 8-27] complex assignment not supported [/.../top.vhd:120]

An example of the code I am using is below:

next_buf(write_count_i_v+conv_integer(wclk_write_bit_number)-1 downto write_count_i_v) <= wclk_din(conv_integer(wclk_write_bit_number)-1 downto 0);

Is this type of assignment supported by Vivado Synthesis?

Solution

This type of assignment is not supported. Please modify your code as necessary.

It is recommended to reduce the dynamic indexing in the assignments in cases such as this.

AR# 65406
Date Created 09/14/2015
Last Updated 10/28/2016
Status Active
Type General Article
Tools
  • Vivado Design Suite