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Oliver_I_Sedlacek's avatar
Oliver_I_Sedlacek
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2 years ago

NIOS2 doesn't automatically run from external RAM, how to debug

I really need my NIOS2 to autostart and run from off chip RAM using the bootloader copy method. The trouble is that despite many readings of the handbook and multiple rebuilds of the design the code ...
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Oliver_I_Sedlacek's avatar
Oliver_I_Sedlacek
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2 years ago

Yes, I've now got a second board. The Flash must 'work' because the cyclone 10 is configured from it. As you say, it could be that the NIOS2 can't read from Flash because of some mistake I made in Qsys, or else I made the same mistake in one of the many steps of setting up the 'copy bootloader'.

This is just a reminder that my original question is 'how do I debug this problem?' Waht techniques can I use?

I would point out that I first raised this issue in September last year, see https://community.intel.com/t5/Programmable-Devices/Autostart-NIOS-from-external-SDRAM-problem/td-p/1494390 so we are now on 11 months without any progress.