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5240 Discussions

NIOS II cannot run from an external memory QSPI?

Olee01
Novice
403 Views

I've created the design based on this document but it is not working

https://www.eeweb.com/app-notes/download/169865

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1 Solution
Fawaz_J_Intel
Employee
193 Views

Hello.

I would check the following items:

1- Make sure Nios II reset vector and exception vector are both pointing to QSPI

2- Make sure you use 25MHZ clock as maximum to the QSPI IP.

3- Try to use PLL for your system clocking. One clock would be for the system.

 

Please let me know if any of the debug steps would help.

 

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2 Replies
Fawaz_J_Intel
Employee
194 Views

Hello.

I would check the following items:

1- Make sure Nios II reset vector and exception vector are both pointing to QSPI

2- Make sure you use 25MHZ clock as maximum to the QSPI IP.

3- Try to use PLL for your system clocking. One clock would be for the system.

 

Please let me know if any of the debug steps would help.

 

Olee01
Novice
193 Views

I was using external clock for the Qspi block once I used the PLL it is working now.

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