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About eMMC voltage from 3.3V to 1.8V in i.MX6SL.

Question asked by Keita Nagashima on Feb 23, 2016
Latest reply on Feb 23, 2016 by igorpadykov

Dear All,

 

Hello. We want to change the uSDHC voltage from 3.3V to 1.8V by changing "LVE" bit.

But, the voltage didn't change (keeping 3.3V) in spite of changing LVE = 1 (ENABLED— Low Voltage).

 

[Question]

Is there necessary setting or step to change the uSDHC voltage?

 

[Additional Information]

In case of GPIO function, the voltage can be changed by LVE bit!

Step;

1. Change the IOMUX mode from uSDHC to GPIO in IOMUXC_SW_MUX_CTL_PAD_xxx.

2. Set the LVE = 1.

--> Output the 1.8V.

 

BSP: L3.14.28_1.0.0

 

Best Regards,

Keita

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