UPGRADE YOUR BROWSER

We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

AR# 18759

6.1 System Generator for DSP - Why do I get a "Cannot solve algebraic loop involving block ..." error with my Black Box?

描述

General Description: 

Why do I get a "'Cannot solve algebraic loop involving block ..." error with my Black Box?

解决方案

Make sure to comment out the "this_block.tagAsCombinational;" in the "blackbox_config.m" file for the Black Box, if you have at least one port that is not combinatorial. 

 

Example from a "blackbox_config.m file": 

% System Generator has to assume that your entity has a combinational feed through;  

% if it doesn't, then comment out the following line: 

this_block.tagAsCombinational; 

 

If you are seeing this problem, but are not using a BlackBox, please see (Xilinx Answer 19941).

AR# 18759
日期 05/16/2014
状态 Archive
Type 综合文章
的页面