Doubt about UUU usage

[sergiospader]

Good Morning,

My system uses PMIC PCA9450 and DDR4. I need to write PMIC voltage to 1v2 at NPL to proper work the DDR4.

My doubt is about UUU, at this moment I understand that NPL did not run yet and the system do not use DDR yet (as it have an application to tune it).

Is it possible to configure PCA9450 output voltage from UUU  to proceed with DDR tunning ? Do you have an step by step of this configuration/commands ?

Thanks

[nxf63675]

Hi Sergio,

Well, as UUU just load the OS to the specific device and then the OS is loaded this load the program and set the voltage and do the DDR and tunning of the DDR, so the UUU can't do that, but we have a DDR tool for that, you can find it on the next link, It will depend on the NXP processor you are using, please see below:

https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/i-MX-8-8X-Family-DDR-Tools-Release/ta-p/...

https://community.nxp.com/t5/i-MX-Processors-Knowledge-Base/i-MX-8M-Family-DDR-Tool-Release/ta-p/110...

They have instruction on how to use it.

Hope this helps you.

Regards,

Israel.