Article ID: 000080144 Content Type: Troubleshooting Last Reviewed: 08/13/2012

Is the alignment pattern set correctly when using the ALT2GXB Megawizard in Quratus II Software Version 9.1 SP2 in Stratix II GX devices?

Environment

  • Stratix® II GX FPGA
BUILT IN - ARTICLE INTRO SECOND COMPONENT
Description

Yes, the alignment pattern is set correctly when using the ALT2GXB Megawizard™ in Quartus® II Software Version 9.1 SP2 in Stratix® II GX devices. However when you set the alignment pattern to 20 bits in length in the ALT2GXB Megawizard, re-opening will show an alignment pattern length of 10 bits.

This does not affect the fitter results and hence the Stratix II GX device works as expected with a 20 bit alignment pattern.

This will be updated in a future version of Quartus II.

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