Quartus 18.1 + NiosII F on CyclomV : boot fails!

Hello sir,

Kindly check the following items:

1- Make sure you use a clock source to Serial Flash controller IP (EPCQ) up to 25MHz (MAX).

2- Make sure your Nios II is running at 50MHz.

3- Make sure the MSEL is pointing to the correct flash configuration:

If using QUAD, MSEL should be 10010

If using STANDARD, MSEL should be 10011

Please let me know if this could help you.

Thanks