The ConnectCore 95 Development Kit is shipped without a default operating system loaded. Only U-Boot is flashed in the device. This step demonstrates how to install Digi Embedded Yocto in your ConnectCore 95 Development Kit.

  1. Establish a serial connection with your device

  2. Download the firmware

  3. Program the firmware

1. Establish a serial connection with your device

Open a serial connection with the device. You can use any serial terminal program such as Tera Term, Minicom, CoolTerm, or HyperTerminal.

PuTTY terminal program is not recommended due to an incompatibility with the USB/serial driver.

Open a serial connection with the following settings:

Parameter Value

Port

Serial port where the device is connected

Baud rate

115200

Data bits

8

Parity

None

Stop bits

1

Flow control

None

2. Download the firmware

To access firmware images, please fill out the following form to provide some information so we can better understand your project needs.

If the form doesn’t load after a few seconds, you may need to refresh the page. Contact Digi Support Services if you are not able to access the firmware images.

3. Program the firmware

There are multiple methods of programming the firmware to the target:

Program the firmware using UUU

Fastboot is a protocol for communication between your device and a computer. It allows you to modify file system images over a USB connection, which is a quick way to update firmware during development. Fastboot requires the USB interface to work as 'device'.

Although it was originally developed for Android images, its implementation on the NXP UUU (Universal Update Utility) tool extends the functionality to any file type.

If you are running Windows Subsystem for Linux (WSL), you may need to perform additional configurations to program the firmware using UUU. Refer to https://learn.microsoft.com/en-us/windows/wsl/connect-usb for more information.

  1. Decompress the zip file in a directory of your choice.

  2. Download the latest Universal Update Utility (UUU), a software tool from NXP.

    UUU version should be v1.5.201 or higher.

  3. Place the uuu executable in a directory in your PATH, such as /usr/bin.

  4. Install udev rules to allow any user to run uuu to access the USB port:

    $ sudo sh -c "uuu -udev >> /etc/udev/rules.d/70-uuu.rules"
$ sudo udevadm control --reload

  5. In addition to the console cable, connect a USB type-C cable to your development PC and the other end to the target USB USB_C.

  6. Reset the device by pressing the reset button on the board and immediately press any key in the serial terminal to stop the auto-boot process. The U-Boot bootloader prompt displays:

    U-Boot SPL dub-2024.04-r4.1+g31c334d1683+p0 (Dec 14 2025 - 19:00:06 +0000)
SOC: 0xb0009500
LC: 0x40010
SYS Boot reason: por, origin: -1, errid: -1
SYS shutdown reason: por, origin: -1, errid: -1
DDRMIX is powered UP
Normal Boot
Trying to boot from MMC1
Primary set selected
Load image from MMC/SD 0xda800
NOTICE:  BL31: v2.10.0  (release):lf-6.6.52-2.2.1-dirty
NOTICE:  BL31: Built : 21:05:58, Nov 30 2025


U-Boot dub-2024.04-r4.1+g31c334d1683+p0 (Dec 14 2025 - 19:00:06 +0000)

CPU:   i.MX95 rev2.0 at 1800MHz
CPU:   Extended Industrial temperature grade (-40C to 125C) at 41C
LM Boot reason: por, origin: -1, errid: -1
LM shutdown reason: por, origin: -1, errid: -1
Model: Digi ConnectCore 95 Development Kit
DRAM:  7.8 GiB
TCPC:  Vendor ID [0x1fc9], Product ID [0x5110], Addr [I2C2 0x53]
cfg name not match mx95alt:ccimx95dvk, ignore
Core:  268 devices, 34 uclasses, devicetree: separate
MMC:   FSL_SDHC: 0, FSL_SDHC: 1
Loading Environment from MMC... OK
Fail to setup video link
In:    serial
Out:   serial
Err:   serial

BuildInfo:
  - SM firmware Build 646, Commit 707569f4, Nov 30 2025 21:12:42
  - ELE firmware version 2.0.2-c110ba4b

   WARNING: Dummy default MAC in 'eth1addr'
flash target is MMC:0
Net:   WARNING: no MAC address assigned for MAC0
imx_get_mac_from_fuse: fuse read err: 0
eth0: enetc-0 [PRIME]Could not get PHY for emdio-0: addr 1

Fastboot: Normal
Normal Boot
Hit any key to stop autoboot:  0
=>
    Information in the console log may vary.

  7. On the target, in U-Boot, execute the following command:

    => fastboot 0

  8. On your host computer, change to the directory where you extracted the ZIP file:

    $ cd <zip-folder>

  9. Run the install_linux_fw_uuu.sh script with -h parameter to check the syntax:

    $ ./install_linux_fw_uuu.sh -h
############################################################
#           Linux firmware install through USB OTG         #
############################################################
Usage: ./install_linux_fw_uuu.sh [options]

  Options:
   -b                     Activate bootcount mechanism (3 boot attempts).
   -d                     Install firmware on dualboot partitions (system A and system B).
                          (Implies -b).
   -h                     Show this help.
   -i <dey-image-name>    Image name that prefixes the image filenames, such as 'dey-image-qt',
                          'dey-image-webkit', 'core-image-base'...
                          Defaults to 'dey-image-chromium' if not provided.
   -k <dek-filename>      Update includes dek file.
                          (implies -t)."
   -n                     No wait. Skips 10 seconds delay to stop script.
   -u <u-boot-filename>   U-Boot filename.
                          Auto-determined by variant if not provided.
   -U                     Update redundant bootloader partition.

  10. To program the default image files (dey-image-chromium):

    $ ./install_linux_fw_uuu.sh

  11. Once the firmware is installed, the device boots automatically. The default username is root with no password.

Program the firmware using uSD card

  1. Decompress the zip file.

  2. Place the decompressed files in the root of a FAT-formatted microSD card and insert it in the microSD socket of the board.

  3. Reset the device by pressing the reset button on the board and immediately press any key in the serial terminal to stop the auto-boot process. The U-Boot bootloader prompt displays:

    U-Boot SPL dub-2024.04-r4.1+g31c334d1683+p0 (Dec 14 2025 - 19:00:06 +0000)
SOC: 0xb0009500
LC: 0x40010
SYS Boot reason: por, origin: -1, errid: -1
SYS shutdown reason: por, origin: -1, errid: -1
DDRMIX is powered UP
Normal Boot
Trying to boot from MMC1
Primary set selected
Load image from MMC/SD 0xda800
NOTICE:  BL31: v2.10.0  (release):lf-6.6.52-2.2.1-dirty
NOTICE:  BL31: Built : 21:05:58, Nov 30 2025


U-Boot dub-2024.04-r4.1+g31c334d1683+p0 (Dec 14 2025 - 19:00:06 +0000)

CPU:   i.MX95 rev2.0 at 1800MHz
CPU:   Extended Industrial temperature grade (-40C to 125C) at 41C
LM Boot reason: por, origin: -1, errid: -1
LM shutdown reason: por, origin: -1, errid: -1
Model: Digi ConnectCore 95 Development Kit
DRAM:  7.8 GiB
TCPC:  Vendor ID [0x1fc9], Product ID [0x5110], Addr [I2C2 0x53]
cfg name not match mx95alt:ccimx95dvk, ignore
Core:  268 devices, 34 uclasses, devicetree: separate
MMC:   FSL_SDHC: 0, FSL_SDHC: 1
Loading Environment from MMC... OK
Fail to setup video link
In:    serial
Out:   serial
Err:   serial

BuildInfo:
  - SM firmware Build 646, Commit 707569f4, Nov 30 2025 21:12:42
  - ELE firmware version 2.0.2-c110ba4b

   WARNING: Dummy default MAC in 'eth1addr'
flash target is MMC:0
Net:   WARNING: no MAC address assigned for MAC0
imx_get_mac_from_fuse: fuse read err: 0
eth0: enetc-0 [PRIME]Could not get PHY for emdio-0: addr 1

Fastboot: Normal
Normal Boot
Hit any key to stop autoboot:  0
=>
    Information in the console log may vary.

  4. To install the default firmware images (dey-image-chromium) into the internal eMMC, run the following command:

    => run install_linux_fw_sd

    To program other images, set the variable image-name to the DEY image name (such as dey-image-webkit or core-image-base) before running the script.

    => setenv image-name core-image-base
=> run install_linux_fw_sd

  5. Once the firmware is installed, the device boots automatically. The default username is root with no password.

    During installation, error messages appear when the installation process attempts to override MAC addresses. These messages are expected.

    ## Resetting to default environment
oldval: 00:40:9D:7D:17:9A  defval: 00:04:f3:ff:ff:fa
## Error: Can't overwrite "ethaddr"
himport_r: can't insert "ethaddr=00:04:f3:ff:ff:fa" into hash table
oldval: 00:40:9D:7D:17:9B  defval: 00:04:f3:ff:ff:fb
## Error: Can't overwrite "eth1addr"
himport_r: can't insert "eth1addr=00:04:f3:ff:ff:fb" into hash table
oldval: 00:40:9D:7D:17:9C  defval: 00:04:f3:ff:ff:fc
## Error: Can't overwrite "wlanaddr"
himport_r: can't insert "wlanaddr=00:04:f3:ff:ff:fc" into hash table
oldval: 00:40:9D:7D:17:9D  defval: 00:04:f3:ff:ff:fd
## Error: Can't overwrite "btaddr"
himport_r: can't insert "btaddr=00:04:f3:ff:ff:fd" into hash table

Program the firmware using USB mass storage

Follow these steps to install Yocto in the device:

  1. Decompress the zip file.

  2. Place the decompressed files in the root of a FAT-formatted USB mass storage and insert it in the USB host connector of the board.

  3. Reset the device by pressing the reset button on the board and immediately press any key in the serial terminal to stop the auto-boot process. The U-Boot bootloader prompt displays:

    U-Boot SPL dub-2024.04-r4.1+g31c334d1683+p0 (Dec 14 2025 - 19:00:06 +0000)
SOC: 0xb0009500
LC: 0x40010
SYS Boot reason: por, origin: -1, errid: -1
SYS shutdown reason: por, origin: -1, errid: -1
DDRMIX is powered UP
Normal Boot
Trying to boot from MMC1
Primary set selected
Load image from MMC/SD 0xda800
NOTICE:  BL31: v2.10.0  (release):lf-6.6.52-2.2.1-dirty
NOTICE:  BL31: Built : 21:05:58, Nov 30 2025


U-Boot dub-2024.04-r4.1+g31c334d1683+p0 (Dec 14 2025 - 19:00:06 +0000)

CPU:   i.MX95 rev2.0 at 1800MHz
CPU:   Extended Industrial temperature grade (-40C to 125C) at 41C
LM Boot reason: por, origin: -1, errid: -1
LM shutdown reason: por, origin: -1, errid: -1
Model: Digi ConnectCore 95 Development Kit
DRAM:  7.8 GiB
TCPC:  Vendor ID [0x1fc9], Product ID [0x5110], Addr [I2C2 0x53]
cfg name not match mx95alt:ccimx95dvk, ignore
Core:  268 devices, 34 uclasses, devicetree: separate
MMC:   FSL_SDHC: 0, FSL_SDHC: 1
Loading Environment from MMC... OK
Fail to setup video link
In:    serial
Out:   serial
Err:   serial

BuildInfo:
  - SM firmware Build 646, Commit 707569f4, Nov 30 2025 21:12:42
  - ELE firmware version 2.0.2-c110ba4b

   WARNING: Dummy default MAC in 'eth1addr'
flash target is MMC:0
Net:   WARNING: no MAC address assigned for MAC0
imx_get_mac_from_fuse: fuse read err: 0
eth0: enetc-0 [PRIME]Could not get PHY for emdio-0: addr 1

Fastboot: Normal
Normal Boot
Hit any key to stop autoboot:  0
=>
    Information in the console log may vary.

  4. To install the default firmware images (dey-image-chromium) into the internal eMMC, run the following command:

    => run install_linux_fw_usb

    To program other images, set the variable image-name to the DEY image name (such as dey-image-webkit or core-image-base) before running the script.

    => setenv image-name core-image-base
=> run install_linux_fw_usb

  5. Once the firmware is installed, the device boots automatically. The default username is root with no password.

    During installation, error messages appear when the installation process attempts to override MAC addresses. These messages are expected.

    ## Resetting to default environment
oldval: 00:40:9D:7D:17:9A  defval: 00:04:f3:ff:ff:fa
## Error: Can't overwrite "ethaddr"
himport_r: can't insert "ethaddr=00:04:f3:ff:ff:fa" into hash table
oldval: 00:40:9D:7D:17:9B  defval: 00:04:f3:ff:ff:fb
## Error: Can't overwrite "eth1addr"
himport_r: can't insert "eth1addr=00:04:f3:ff:ff:fb" into hash table
oldval: 00:40:9D:7D:17:9C  defval: 00:04:f3:ff:ff:fc
## Error: Can't overwrite "wlanaddr"
himport_r: can't insert "wlanaddr=00:04:f3:ff:ff:fc" into hash table
oldval: 00:40:9D:7D:17:9D  defval: 00:04:f3:ff:ff:fd
## Error: Can't overwrite "btaddr"
himport_r: can't insert "btaddr=00:04:f3:ff:ff:fd" into hash table