Hi all,i want to build a system with a Nios Core and the software will run on the hps ram. My first step i built the system with nios core and with fpga ram. I test my software with "Nios for eclipse" with the Tool "Run as -> NIOS II Hardware". Which rans. My next step i changed the fpga ram to hps ram but if i want to debug or to run the software in "NIOS for eclipse" i get the error: Using cable "USB-BlasterII [USB-1]", device 1, instance 0x00 Pausing target processor: not responding. Resetting and trying again: FAILED Leaving target processor paused I use Quartus 14.1 My QSYS Build http://www.alteraforum.com/forum/attachment.php?attachmentid=11147&stc=1 I think i have problems with the Ram Timings but i didnt find any descriptions about the settings for this dev board Cyclone V SoC.
I wouldn't recommend doing this. Memory contention will slow down the HPS significantly. It's much better to use on-chip ram or a separate ram chip for the NIOS. The added cost for extra ram chip(s) isn't much considering the cost of the SoC itself.