Nios® V/II Embedded Design Suite (EDS)
Support for Embedded Development Tools, Processors (SoCs and Nios® V/II processor), Embedded Development Suites (EDSs), Boot and Configuration, Operating Systems, C and C++
12744 Discussions

Is it possible to change the CPU frequency at runtime?

Altera_Forum
Honored Contributor II
‎09-17-2010 02:19 AM
1,086 Views

Hi,everyone, 

 

I created a system using nios2 and because of our research goal,I have this question. 

 

Is it possible to change the CPU frequency at runtime？ Use PLL? When we change the frequency at runtime,there must be some time when the frequency is very unstable.Will there be a problem? 

 

Thanks for any clue:D
0 Kudos

Link Copied

1 Reply
Altera_Forum
Honored Contributor II
‎09-18-2010 10:12 PM
338 Views

I just found Phase-Locked Loop Reconfiguration for the PLL. I think probably I can use this. But if I change the frequency of the processor, it seems that the memroy frequency needs to change too.I am not sure

0 Kudos
Copy link
Reply

Community support is provided Monday to Friday. Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.