FPGA, SoC, And CPLD Boards And Kits
FPGA Evaluation and Development Kits
Announcements
FPGA community forums and blogs on community.intel.com are migrating to the new Altera Community and are read-only. For urgent support needs during this transition, please visit the FPGA Design Resources page or contact an Altera Authorized Distributor.
6478 Discussions

How to change default clock frequency in A10 fpga dev kit

HungLam
Beginner
‎10-16-2019 12:49 AM
846 Views

Hi,

 

I am using A10 FPGA dev kit, by default clock generator IC - U14 SI5338 generates clock[3..0] = 302.083333MHz, 625MHz, 625MHz, 100Mhz.

 

I would like to change clock output 1 from 625MHz to 125Mhz as reference clock for xcvr in FMCA.

 

I just used BTS tool to change it to 125Mhz, but the configuration lost when power-down. It still keeps 625Mhz after re-start.

 

Is it possible to change it to 125Mhz without the reconfiguration every power-on.

 

Thanks!

0 Kudos

Link Copied

1 Reply
AR_A_Intel
Employee
‎10-17-2019 01:26 AM
654 Views

Hello,

 

Welcome to INTEL forum. Regrettably, it is not possible to change default clock frequency to 125Mhz without the reconfiguration.

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.