i.MX Processors中的主题 Re: Enable spread spectrum in imx8mq processor

Enable spread spectrum in imx8mq processor

khushbu_patel — Mon, 16 Mar 2020 15:22:29 GMT

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

Re: Enable spread spectrum in imx8mq processor

khushbu_patel — Thu, 19 Mar 2020 05:15:56 GMT

Hi,

Please provide some helpful inputs here.

Appreciated your help!

Regards,

Khushbu Patel

Re: Enable spread spectrum in imx8mq processor

joanxie — Sat, 21 Mar 2020 13:26:13 GMT

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

Re: Enable spread spectrum in imx8mq processor

khushbu_patel — Mon, 23 Mar 2020 06:13:02 GMT

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

Re: Enable spread spectrum in imx8mq processor

khushbu_patel — Tue, 14 Apr 2020 08:58:38 GMT

Hi,

Any update on this?

Your help will be appreciated!

Re: Enable spread spectrum in imx8mq processor

joanxie — Mon, 20 Apr 2020 04:54:18 GMT

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

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