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Aidin-P2D's avatar
Aidin-P2D
Icon for Occasional Contributor rankOccasional Contributor
3 years ago

Interfacing Nios II and HMC on Cyclone vGT

Hi everyone, Hope all well and I appreciate if you take a look at this and see if you can help us. We are using Cyclone V GT Dev board to test DDR3 HMC controller. We used 32 bit SGDMA to write int...
KellyJialin_Goh's avatar
KellyJialin_Goh
Icon for Frequent Contributor rankFrequent Contributor
3 years ago

Hi,

Unfortunately, This Nios® II processor instruction master cannot address more than a 256 MByte span of memory; consequently, providing more than 256 MBytes to run Nios® II software wastes memory resources and causes system ID not found on target at expected base address.


I hope this answers your doubts.


Thank you.


Best,

Kelly


Aidin-P2D's avatar
Aidin-P2D
Icon for Occasional Contributor rankOccasional Contributor
3 years ago

Thanks Kelly,

something is not adding up here . data sheet says 256MB however, Nios and Platform designer see the memory size of 512MB? could this be a problem? see below from platform designer?

Thanks

Aidin.