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Welcome to the UUU (Universal Update Utility). This is an evolution of MFGTools (aka MFGTools v3).

UUU is Freescale/NXP I.MX Chip image deploy tools.

With the time, the need for an update utility portable to Linux and Windows increased. UUU have the same usage on both Windows and Linux. It means the same script works on both OS.

UUU is command line tools. look like

    uuu (universal update utility) for nxp imx chips -- libuuu-1.0.1-gffd9837

    Succues:0       Failure:3               Wait for Known USB Device Appear...

    1:11     5/5 [                                        ] SDP: jump -f u-boot-dtb.imx -ivtinitramf....
    2:1      1/5 [===>                                    ] SDP: boot -f u-boot-imx7dsabresd_sd.imx ....

UUU design as common library and UI. So user can easily integrate into their tools with uuu library. UUU also easy run in any scripts.

Running environment

Windows 10, 64bit, early version need install vs2017 redistribute package
Ubuntu 16.14 or above, 64bit

Windows 7 user need install winusb driver. A application can do that. https://zadig.akeo.ie/

Typical Usage

Set board boot pin to serial download mode. Generally iMX ROM will fail back to usb serial download mode if boot failure.

Download uboot

uuu bootloader

Burn uboot into emmc

uuu -b emmc bootloader

Burn rootfs image into emmc

uuu -b emmc_all bootloader rootfs.sdcard

Decompress rootfs image and burn into emmc (since 1.1.87)

uuu -b emmc_all bootloader rootfs.sdcard.bz2/*

Burn release image into emmc

uuu L4.9.123_2.3.0_8mm-ga.zip

More usage please refer Example

Typical Script

uuu’s script is plain text file

**first line must be

uuu_version 1.0.1

Version show minimize version of uuu to run this script.

Then flow uuu commands.

UUU command format as

PROTOCOL: CMD

The below is example to boot uboot for imx6 and imx7.

uuu_version 1.0.1
SDP: dcd -f u-boot.imx
SDP: write -f u-boot.imx -ivt 0
SDP: jump -f u-boot.imx -ivt 0

more sample scripts see Sample-script

The below table environment may be used when write uuu script

Table 1. Table Fastboot environment
Variable	Description
`fastboot_dev`	fastboot flash device, support mmc and sata
`fastboot_buffer`	fastboot download buffer adddress
`fastboot_bytes`	fastboot download file size
`emmc_dev`	eMMC device number
`sd_dev`	sd slot device number

What Firmware Need

What you want	Firmware Need
Download bootloader	N/A
Burn Image to eMMC/SD	uboot with fastboot enable
Burn Image to qspi\spi\nor	uboot with fastboot enable
Burn Image into Nand flash	uboot(1), linux kernel\initramfs\uboot\dtb
Need linux shell cmd such as fdisk	uboot(1), linux kernel\initramfs\uboot\dtb
Boot linux kenrel with rootfs already in eMMC	uboot with fastboot enable
Boot Linux kernel with nfs over USB	uboot with fastboot enable, initramfs

(1) prefer enable fastboot. If ROM HID support write additional image to DDR place, you can write kernel\dtb\initramfs to ddr before jump to uboot. Enable fastboot give more flexibility to change kernel command line.