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  4. AR# 57454: 2013.2 Vivado HLS - Design with integer divider w/ operand widths greater than 64-bit fail SystemC RTL co-simulation

AR# 57454

2013.2 Vivado HLS - Design with integer divider w/ operand widths greater than 64-bit fail SystemC RTL co-simulation

Description

A design that uses a divider with input and/or output widths greater than 64-bit causes an assertion failure during SystemC co-simulation. 

The following message is issued:

Assertion failed: DIN0_WIDTH <= 64, file C:/Xilinx/Vivado_HLS/2013.2/common/technology/generic/SystemC/AESL_comp.h, line 877

Solution

The same design will pass Verilog and VHDL RTL co-simulations, export of IP-XACT succeeds, and RTL and post-implementation simulations can be successfully run in the Vivado tool using the VHLS generated project files.

As a result, RTL co-simulations can be used as a work-around.

Please bear in mind that the SystemC co-simulation uses simulation models, and the implementation tools use the RTL (Verilog or VHDL).

This issue will be fixed in Vivado HLS 2013.3.

Linked Answer Records

Master Answer Records

Answer Number Answer Title Version Found Version Resolved
47429 Xilinx Vivado HLS Solution Center - Top Issues N/A N/A
AR# 57454
Date 10/20/2014
Status Active
Type Known Issues
Tools