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Aidin-P2D's avatar
Aidin-P2D
Icon for Occasional Contributor rankOccasional Contributor
2 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
2 years ago

Hi Aidin,


Sorry for misunderstanding your question. Got abit caught up with our discussion but as I read through your latest comment that might be the root cause of the issue: "Nios is not functioning when connecting Nios instruction master to HMC" and "Array of 400MB defined and filled with data and verified"


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 and sorry for the confusion caused.


Thank you.


Regards,

Kelly