Downloading image without using usb otg1

[zmagday]

We have a customized board using i.MX6ULL.

I want to flash the image (imx-image-core-imx6ull14x14evk-20231102033215.rootfs.wic.zst) to my board, but the usb-otg1 on my board is connected to other device so I can't use it to flash the image.

Is there other way to flash the image (.wic.zst file) to my board?

Usb-otg2 and JTAG is available.

And if I can still use the Universal Update Utility, it would be great.

[zmagday]

I need to flash the image to emmc or nand. Is there any other way to do it?

[Dhruvit]

Hi @zmagday,

I hope you are doing well

As mentioned in section 8.2.4 Serial Downloader from the reference manual IMX6ULLRM "USB OTG1 and UART 1/2 can be used to download a program image to the chip."

UUU supports the USB serial download mode but does not support operations through the UART.

For that one can refer to the imx_usb_loader from the boundary devices.

Thanks & Regards,

Dhruvit Vasavada

[zmagday]

Hi @Dhruvit 

If I use the imx_usb_loader, can I still flash the wic.zst file?

And how can I select emmc in flashing the image?

[Dhruvit]

Hi @zmagday,

I hope you are doing well

Please look into the below guide for the details regarding the usage of the imx_usb_loader utility.

Guide to flash iMX6 from Linux

Thanks & Regards,

Dhruvit Vasavada

[Dhruvit]

Hi @zmagday,

I hope you are doing well

The USB-OTG2 can not be used to download the image in i.MX6ULL. 

The other option is the SD card to boot the board as mentioned in section 6.1 Flashing an SD card image of the i.MX Yocto Project User's Guide.

Thanks & Regards,

Dhruvit Vasavada