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service:linux:aappnote:nxp_uuu

NXP Universal Update Utility (UUU)

UUU is the next generation of Freescale/NXP i.MX Chip image deploy tools and replaces the previous MFGTools.
Please view the NXP UUU documentation for details.

Using UUU

First step ist to put the module into USB Serial Download Mode.
The USB Serial Download Mode (manufacturing mode) is a mode by which the i.MX processor loads its internal ROM-firmware instead of the bootloader stored in eMMC or SD-card.
It will use the USB-OTG port to enumerate as HID-device on a connected PC.


Some Samples:

Download uboot uuu flash.bin
Burn uboot into emmc uuu -b emmc flash.bin
Burn rootfs image into emmc uuu -b emmc_all flash.bin rootfs.sdcard
Decompress rootfs image and burn into emmc uuu -b emmc_all flash.bin rootfs.sdcard.bz2
Burn release image into emmc uuu L4.9.123_2.3.0_8mm-ga.zip

*) If you see 'Failure open usb device' message, you may need to call 'sudo uuu …'.

Trizeps VIII

Enter USB Serial Download Mode

Using Hardware RESET_IN

The default Kinetis MCU firmware will enter Serial Download Mode after RESET_IN (SODIMM-pin 26) has been asserted for more than 10s.

Using Bootloader

To enter the USB Serial Download Mode of the NXP boot-ROM issue following commands:

u-boot=> i2c dev 2
u-boot=> i2c mw 0x10 2.1 2

or run the script:

u-boot=> run serial_download

This will write to REG_CONTROL of the Trizeps VIII MCU, which will than reset the i.MX8M processor into this mode.

As an alternative or for modules without Kinetis MCU:

u-boot=> run serial_download2

Using Linux

To enter the USB Serial Download Mode of the NXP boot-ROM issue the following command:

$ i2cset -f y 2 0x10 2 2

This will write to REG_CONTROL of the Trizeps VIII MCU, which will than reset the i.MX8M processor into this mode.

Myon II

Enter USB Serial Download Mode

Using BOOT_MODE0 (J70-40)

The Myon II will enter Serial Download Mode if BOOT_MODE0 (pin J70-40) is set to VDD_IO (pin J70-52) during (re-)boot.
Typical baseboards for Myon have a „Force USB-Boot“ switch to set this pin.

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service/linux/aappnote/nxp_uuu.txt · Zuletzt geändert: 2020/07/15 10:46 von