IMX6Q heating issue

[vinodkumar]

Hi,

    we are developing product with IMX6Q processor MCIMX6Q6AVT10AC & PMIC MMPF0100F0EP.

When Video is playing through HDMI output of IMX6Q processor, processor is heating to much.

But when we run same video with Sabre SD development board, processor temperature is normal.

We measured processor ARM core & SOC supply.

In Sabre SD development board, At boot up time PMIC Voltage output to ARM core & SOC is 1.375V.

Once boot up is over,  PMIC Voltage output to ARM core & SOC is reducing to 1.250V.

But in our development board, PMIC Voltage output is not reducing to 1.250V after boot up.

We are using MMPF0100F0EP which is pre programmed PMIC, where in Sabre SD Evaluation board, non programmed PMIC part number is MMPF0100NPEP.

[igorpadykov]

Hi Vinod

is image the same for both boards ?

What is about image details?

Best regards

igor

[vinodkumar]

image is same on both Boards.

[igorpadykov]

what image - where/how/name/build_details -  did you get it?

[vinodkumar]

Hi,

we are using

Android version :4.3

kernel version :3.0.35

Build platform : sabersd.

Note : we are following below link for source code.

http://www.freescale.com/webapp/Download?colCode=IMX6_JB43_110_ANDROID_DOCS

[igorpadykov]

I would suggest to perform dvfs test below and check pmic i2c with oscilloscope

L3.0.35_4.1.0_130816\imx-test-3.0.35-4.1.0\test\pm\doc

L3.0.35_4.1.0_ER_SOURCE_BSP