Honored Contributor
Honored ContributorDear Colleague,
I feel you pain....... I have not found a final solution to this issue, but I have now seen Nios executing code out of the DDR3 memory that is attached to the FPGA. I based my work on the sockit_ddr3_nios_test example that ships with the SoCKit. 1) In the Nios-SBT, I "run-as-Nios-II HW", and after a lot of random messages the system reports that it failed to verify a memory location so downloading of the .elf failed. This leaves the Nios processor paused. 2) However, if I go to Run Configurations and un-tick the "download .elf file" option, and run the "download-activity" once again, the Nios processor is released from its paused status, and starts to execute the .elf that was downloaded the first time around. Questions to resolve.. 1) How do I keep the screen open that shows the memory-space that fails to Verify? This is closed down by the SBT before I can grab any data off it. :( 2) Setup the system to load the FPGA image and the Nios application from QSPI. Thus you might have a working system, that is being stalled by a failure to verify an obscure location in the DDR3.... Hope this helps. NN
