Hi all
Does the MCIMX6SLL-EVK support SDIO UHS-I mode ?
I know that the i.MX6SLL supports UHS-I compliant.
Can we support SDIO UHS-I mode with the same circuit configuration as the MCIMX6SLL-EVK ?
Do I need a 1.8 V / 3.3 V switching device based on the SDx_VSELECT signal externally ?
Ko-hey
Solved! Go to Solution.
Hi Ko-hey
there is no need for external 1.8 V / 3.3 V switching since i.MX6SLL (as i.MX6SL) has pad dual voltage
capability : NVCC_3V3, NVCC_1V8. In linux dts there is option for sd high frequency pad settings:
pinctrl_usdhc1_100mhz: usdhc1grp_100mhz
pinctrl_usdhc1_200mhz: usdhc1grp_200mhz
linux/arch/arm/boot/dts/imx6sll-evk.dts
imx6sll-evk.dts\dts\boot\arm\arch - linux-imx - i.MX Linux kernel
Best regards
igor
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Hi Ko-hey
there is no need for external 1.8 V / 3.3 V switching since i.MX6SLL (as i.MX6SL) has pad dual voltage
capability : NVCC_3V3, NVCC_1V8. In linux dts there is option for sd high frequency pad settings:
pinctrl_usdhc1_100mhz: usdhc1grp_100mhz
pinctrl_usdhc1_200mhz: usdhc1grp_200mhz
linux/arch/arm/boot/dts/imx6sll-evk.dts
imx6sll-evk.dts\dts\boot\arm\arch - linux-imx - i.MX Linux kernel
Best regards
igor
-----------------------------------------------------------------------------------------------------------------------
Note: If this post answers your question, please click the Correct Answer button. Thank you!
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