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Assembler error while using alt_dqdqs in a custom DDR2 PHY

Altera_Forum
Honored Contributor II
‎03-29-2012 02:23 AM
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i have implement a custom ddr2 phy using alt_dqdqs megafunction, but when i compile it in quartus, quartus report a error during Assembler stage, looks like: 

 

Internal error: sub-system: ASMCC 

File: /quartus/...... 

Assembler bitfield error: 

Found conflicting assignment for CFF address. 

 

I found a patch in Altera website, but that patch is mainly for Altera MEMPHY and DDR2 controller using ALTMEMPHY, not for alt_dqdqs. 

 

I try quartus version 9.1sp2 10.0sp1 and 11.0, they all have the same error. 

 

Any solutions?
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Altera_Forum
Honored Contributor II
‎03-29-2012 04:59 PM
393 Views

you'll have to file a service request 

 

in general, assembler IEs are rare. i'm not sure there's much you can do to debug it
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