topic Re: i.MX8 MM Not detected eMMC Slot in i.MX Processors

i.MX8 MM Not detected eMMC Slot

elim — Fri, 22 May 2020 01:50:10 GMT

hi communicators.

I have one specific question plz help...

- My NXP Board Description Picture:

i.MX 8M Mini

--------------------------------------------------------------------------------------------------------------------------------------------

1. I Downloaded i.MX8 MM Android Image on the origin Web site i.MX 8M Mini Evaluation Kit | NXP

Q10.0.0_1.0.0_DEMO_8MM-DDR4

URL: The Download Link what I Downloaded

so I unzip and executed UUU.exe

.\uuu_imx_android_flash.bat -f imx8mm -a -e -t emmc -u trusty -d mipi-panel

u-boot-imx8mm-evk-uuu.imx flashed the board.

so show you the board CMD screenshot:

but, something problem found.

Why Not detect the eMMC?

Why U-Boot print out:

Loading Environment from MMC... Card did not respond to voltage select!
*** Warning - No block device, using default environment

and the command "mmc list" of U-boot:

and "mmc info" of U-boot:

I know the i.MX8MM has an MMC slot on the hardboard.

but I want to Porting the Android OS on the eMMC.

not want MMC(SD Card)

The website states that there is eMMC:

How can I do..?

Re: i.MX8 MM Not detected eMMC Slot

karangajjar — Fri, 22 May 2020 13:58:39 GMT

Hi lim eon

IMX 8MMini EVK with DDR4 has NAND flash instead of eMMC. Please verify if your board is having eMMC or NAND flash and refer this link for reference.

Let us know in case of any concerns.

Regards,

Karan Gajjar

Re: i.MX8 MM Not detected eMMC Slot

weidong_sun — Mon, 25 May 2020 04:44:00 GMT

Hello Lim,

From the picture you pasted, your I.MX8MM-EVK is the verison of LPDDR4, which supports eMMC.

you can check it according to the below:

https://community.nxp.com/thread/532652

Hope above information is helpful to you.

Have a nice day!

B.R,

Weidong

Re: i.MX8 MM Not detected eMMC Slot

elim — Mon, 25 May 2020 04:58:47 GMT

hi Wigros Sun

you reply twice on my question thanx!

I have two different boards of NXP.

NXP i.MX8 uuu executed error(unknown command) <- this(i.MX8MQ) and i.MX8MMini

but here section questions are i.mx8mm.

and you answer me what checking the DDR version.

I think DDR is DDR4 because I attach the screenshot:

here, the model is DDR4.

Re: i.MX8 MM Not detected eMMC Slot

elim — Mon, 25 May 2020 05:08:56 GMT

oh, my gosh.

my board did not insert eMMC.

Is eMMC included in the product configuration?

I didn't found eMMC chip on my configuration box.

(but 16GB SD Chip was in box. I thought SD is the same thing the eMMC)

but SD is a different thing

embedded MMC is eMMC

and portable MMC is SD.

is right?

Re: i.MX8 MM Not detected eMMC Slot

weidong_sun — Tue, 26 May 2020 01:05:14 GMT

Hello Lim,

See below, please!

So we have 2 versions of i.MX8MM-EVK: DDR4 + NAND FLASH & LPDDR4 + eMMC.

If there is a soket for NAND Flash on your SOM board of I.MX8MM, it is the version of DDR4+NAND FLASH, which doesn't support eMMC on board.

Hope the information is helpful to you.

B.R,

Weidong

Re: i.MX8 MM Not detected eMMC Slot

elim — Wed, 27 May 2020 04:54:52 GMT

solved problem thanx.