Enable spread spectrum in imx8mq processor

[khushbu_patel]

Hi,

We have designed custom board having imx8mq processor. We want to enable spread spectrum for HDMI and LVDS display. Please suggest accurate steps for the same.

Quick response would be much appreciated.

Thank you in advance for your help!

Regards,

Khushbu Patel

[joanxie]

I only find enable DRAM clock spread spectrum feature on i.MX8M Dual platform, for display only document for imx8qm or imx8qxp, but they are different

[khushbu_patel]

Thanks Joan for the reply.

Actually we have designed our custom board with imx8mq processor which is different than imx8qm or imx8qxp processor. For EMC certifications, we need to enable Spread spectrum for HDMI display. This is the solution of our EMC related problem, but we need a method to implement this solution for imx8mq processor.

Any help in this direction will be appreciated a lot!!

Regards,

Khushbu Patel

[khushbu_patel]

Hi,

Any update on this?

Your help will be appreciated!

[joanxie]

i.mx8MQ PLL should support this, but no one tested on imx8mq,maybe you can refer to this

https://community.nxp.com/message/1275490 

[khushbu_patel]

Hi,

Please provide some helpful inputs here.

Appreciated your help!

Regards,

Khushbu Patel