Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
14 years ago

Qsys doesn't generate memory model

I have a hierarchical Qsys system containing a NIOSII, two DDR3 memory controllers and some video processing modules. One of my subsystems is ddr3_system, which instantiates a DDR3 memory controll...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
13 years ago

Hmmm that sounds like a bug. The memory model is what is called a "companion BFM" meaning that Qsys is supposed to automatically bolt it up to the PHY interface for you. Have you tried this with a single SDRAM controller at the top? I'm suspecting it is caused by there being two of them but I have no idea why that would be a problem.