Device Family: Intel® Stratix® 10

Intel Software: Quartus Prime Pro

Type: Answers

Area: Tools


Last Modified: February 22, 2018
Version Found: v17.1 Update 1
Bug ID: FB: 533370;

Why does the LPM_ADD_SUB IP core generate incorrect results?

Description

Due to a problem in the Intel® Quartus® Prime Pro edition software, you may get incorrect results in hardware when using the LPM_ADD_SUB IP core for Intel Stratix® 10 devices. The problem occurs only when a pipeline stage of greater than 1 is used. The simulation yields correct results.

 

Workaround/Fix

To work around the problem, use pipeline stage of 1 or 0.

This problem is scheduled to be fixed in a future release of the Intel® Quartus® Prime software.