Igor at 14:28, 16 April 2026

2026-04-16T14:28:26Z

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..."

2024-08-05T15:20:59Z

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 MCM-iMX8M-Plus Yocto Linux package from [https://www.compulab.com/products/computer-on-modules/mcm-imx8m-plus-nxp-i-mx-8m-plus-som-system-on-module-computer/#devres CompuLab website].
:It's referred to as ''mcm-imx8m-plus_yocto-linux_YYYY-MM-DD.zip'' further in the article
* Extract the archive:
<pre>
unzip mcm-imx8m-plus_yocto-linux_YYYY-MM-DD.zip -d /path/to/mcm-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 MCM-iMX8M-Plus evaluation board
* Populate '''E19''' jumper
* Connect the MCM-iMX8M-Plus evaluation board USB type-C [https://mediawiki.compulab.com/w/index.php?title=MCM-iMX8M-Plus:_Evaluation_Kit:_Getting_Started connector] '''J5''' with the workstation USB port using a standard USB type-C cable.
* Power on the MCM-iMX8M-Plus evaluation board
* Issue following command:
<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 -v -b emmc /path/to/mcm-imx8m-plus_yocto-linux/bootloader/imx-boot_mcm-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 '''E19''' jumper
* Turn on the device
* Restore [[MCM-iMX8M-Plus:_Yocto_Linux:_How-To_Guide#Basic_commands|default boot environment]]

[[Category:Yocto]]
[[Category:MCM-iMX8M-Plus]]

@@ Line 6: / Line 6: @@
 = Getting Recovery U-Boot Firmware Image =
-* Download the MCM-iMX8M-Plus Yocto Linux package from [https://www.compulab.com/products/computer-on-modules/mcm-imx8m-plus-nxp-i-mx-8m-plus-som-system-on-module-computer/#devres CompuLab website].
+* Download the MCM-iMX8M-Plus Yocto Linux package from [https://www.compulab.com/products/computer-on-modules/mcm-imx8m-plus-nxp-i-mx-8m-plus-som-system-on-module/#devres CompuLab website].
 :It's referred to as ''mcm-imx8m-plus_yocto-linux_YYYY-MM-DD.zip'' further in the article
 * Extract the archive:
@@ Line 36: / Line 36: @@
 = Flashing U-Boot Firmware =
 * Turn off the MCM-iMX8M-Plus evaluation board
-* Populate '''E19''' jumper
+* Populate '''E19''' '''ALT-BOOT''' jumper
-* Connect the MCM-iMX8M-Plus evaluation board USB type-C [https://mediawiki.compulab.com/w/index.php?title=MCM-iMX8M-Plus:_Evaluation_Kit:_Getting_Started connector] '''J5''' with the workstation USB port using a standard USB type-C cable.
+* Connect the MCM-iMX8M-Plus evaluation board micro-USB [https://mediawiki.compulab.com/w/index.php?title=MCM-iMX8M-Plus:_Evaluation_Kit:_Getting_Started connector] '''P24''' with the workstation USB port using a standard micro USB cable.
 * Power on the MCM-iMX8M-Plus evaluation board
-* Issue following command:
+* To verify the SoC started in SDP mode, from the Host PC issue the following command:
 <pre>
 uuu -lsusb
@@ Line 60: / Line 60: @@
 = After Installation =
 * Turn off the device
-* Disconnect the USB type-C cable from type-C connector
+* Disconnect the cable from P24 connector
 * Remove '''E19''' jumper
 * Turn on the device

MCM-iMX8M-Plus: U-Boot: Recovery - Revision history

Igor at 14:28, 16 April 2026

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..."