Forum Discussion
New ContributorCycloneV MPU clock frequency
Regular ContributorHi,
Have you changed the device assignment correctly in Quartus settings?
I didn't get the Quartus version that you are using, can you share the version that you are testing on?
New ContributorHi.
thanks for your answer. The device settings are correct, both in the platform designer and in quartus project. Normally I am using Quartus Prime 17.1.
The mentioned problem occurs in using Quartus Prime 17.1 and in Quartus Prime 19.1.
Best
Andre
- EBERLAZARE_I_Intel
Hi,
I recommend that you check the "MPU clock frequency" at the default value of 800 MHz. At boot-up, please re-check the clock frequency again.
- aurec2
Hi,
thanks for your answer. This is what I did, i.e. currently the device runs at 800 MHz. On booting up the SPL confirms that the MPU frequency is set at 800 MHz.
As you are certainly aware - the specified device allows for a MPU frequency of 925 MHz.
Are there any specific steps, other than choosing the correct device in the Platform designer?
As for now I still can only choose 800 MHz as a MPU frequency in the Platform designer.
Answers would be appreciated.
Many thanks ,Andreas.
- EBERLAZARE_I_Intel
Hi,
After rechecking, unfortunately you may have read the part number wrongly, you may refer below on what your part number represents, yours is a C7 speed grade, not a C6, which has max 800MHz supported clock speed:
A C6 should have part number as 5CSXFC6D6F31C*6*N
Performance reference:
