Article ID: 000077238 Content Type: Troubleshooting Last Reviewed: 09/11/2012

Can I generate LPM_ROM file targeting Stratix device using VHDL MegaWizard?

Environment

BUILT IN - ARTICLE INTRO SECOND COMPONENT
Description NO. currently in the Quartus® II software version 2.1 the Quartus II MegaWizard generated LPM_ROM file will call the library lpm. This is incorrect since the LPM_ROM file will instantiate an altsyncram which is defined in altera_mf.v

There are two workarounds:

1) Manually edit the file Change

LIBRARY lpm;

USE lpm.lpm_components.all;



to



LIBRARY altera_mf;

USE altera_mf.altera_mf_components.all;

2) Do not use LPM_ROM when targeting Stratix. Instead, please use altsyncram to instantiate all your memory.

This was fixed in the Quartus II software version 2.2.

Related Products

This article applies to 1 products

Stratix® FPGAs