Igor: Created page with "= Introduction = This article describes flashing U-Boot firmware image with a Linux Host using Universal Update Utility (hereinafter '''UUU'''). {{Note|Follow the [https://gi..."

2025-04-10T14:58:51Z

Created page with "= Introduction = This article describes flashing U-Boot firmware image with a Linux Host using Universal Update Utility (hereinafter '''UUU'''). {{Note|Follow the [https://gi..."

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= Introduction =
This article describes flashing U-Boot firmware image with a Linux Host using Universal Update Utility (hereinafter '''UUU''').

{{Note|Follow the [https://github.com/NXPmicro/mfgtools/blob/master/README.md Universal Update Utility instructions] to install and setup UUU tool on a workstation.}}

= Getting Recovery U-Boot Firmware Image =

* Download the CL-SOM-iMX8Plus Yocto Linux package from [https://www.compulab.com/products/computer-on-modules/cl-som-imx8plus-nxp-i-mx-8m-plus-system-on-module-computer/#devres CompuLab website].
:It's referred to as ''cl-som-imx8plus_yocto-linux_YYYY-MM-DD.zip'' further in the article
* Extract the archive:
<pre>
unzip cl-som-imx8plus_yocto-linux_YYYY-MM-DD.zip -d /path/to/ucm-imx8m-plus_yocto-linux
</pre>

= Determining RAM size =
Determine the correct DRAM size according to the label located on the bottom side of the device. DRAM size is encoded in the unit's '''D''' [https://www.compulab.com/products/iot-gateways/iot-gate-imx8plus-industrial-arm-iot-gateway/#specs option].<br>
Use the table below to determine '''DRAM_CONF''' value:

{| border="1" cellspacing="1" cellpadding="3" style="border-collapse:collapse; text-align:center;"
! Product '''D''' Option
! DRAM_CONF
|-
| D1
| d1d8
|-
| D2
| d2d4
|-
| D4
| d2d4
|-
| D8
| d1d8
|}

= Flashing U-Boot Firmware =
* Turn off the UCM-iMX8M-Plus evaluation board
* Populate '''E21''' jumper
* Connect the CL-SOM-iMX8Plus evaluation board USB type-C [https://mediawiki.compulab.com/w/index.php?title=CL-SOM-iMX8Plus:_Evaluation_Kit:_Getting_Started connector] '''J5''' with the workstation USB port using a standard USB type-C cable.
* Power on the CL-SOM-iMX8Plus evaluation board
* Issue following command from Host PC terminal:
<pre>
uuu -lsusb
</pre>
: Expected output:
<pre>
uuu (Universal Update Utility) for nxp imx chips -- libuuu_1.5.21-3-gcbff795

Connected Known USB Devices
Path Chip Pro Vid Pid BcdVersion
==================================================
1:131 MX865 SDPS: 0x1FC9 0x0146 0x0002
</pre>
* Flash U-Boot Firmware. Replace <DRAM_CONF> with the actual value:
<pre>
sudo uuu -d -v -b emmc /path/to/CL-SOM-iMX8Plus_yocto-linux/bootloader/imx-boot_som-imx8m-plus_<DRAM_CONF>
</pre>
* Make sure the deployment is completed with no error

= After Installation =
* Turn off the device
* Disconnect the USB type-C cable from type-C connector
* Remove '''E21''' jumper
* Turn on the device
* Restore [[CL-SOM-iMX8Plus:_Yocto_Linux:_How-To_Guide#Basic_commands|default boot environment]]

[[Category:Yocto]]
[[Category:CL-SOM-iMX8Plus]]

CL-SOM-iMX8Plus: U-Boot: Recovery - Revision history

Igor: Created page with "= Introduction = This article describes flashing U-Boot firmware image with a Linux Host using Universal Update Utility (hereinafter '''UUU'''). {{Note|Follow the [https://gi..."