Forum Discussion

Contributor

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 ...

Embedded Applications Layer

tehjingy_Altera

Regular Contributor

2 years ago

Hi Oliver

The GSFI is an IP by Intel.

In your case we could use that to test the read and write access to the Flash Storage to be working or not.

https://www.intel.com/content/www/us/en/docs/programmable/683419/24-1-20-2-5/flash-access-using-the.html

Regards

Jingyang, Teh

Oliver_I_Sedlacek

Contributor

2 years ago

Well the programmer demonstrably writes to flash and the NIOS2 doesn't ever write to flash, so the only use might be to read from flash. This gets me back to my original question, what is in the flash that is wrong?

The only progress we have made in nearly 2 months is to discover that the boot loader isn't copying the application code to external RAM.

I have been promised that an extra engineer would look at this. Can you ask whether that is happening?

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

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