i.MX 8M Mini Evaluation Kit

Preparation

The instructions in this section also apply to those boards with secure boot enabled. There are references on how to perform common instructions along with the flow. Security details the required background for secure boot.

Important

Ensure you replace <factory> placeholder below with the name of your Factory.

1. Download the necessary files from https://app.foundries.io/factories/<factory>/targets:

   1. Click the latest Target with the platform trigger.

   2. Expand the run in the Runs section which corresponds with the name of the board. Download the Factory image for that machine. For example:

      lmp-factory-image-<machine_name>.wic.gz
      u-boot-<machine_name>.itb
      imx-boot-<machine_name>
      

   Note

   The compressed image (.wic.gz) is used since LmP v92. Before, the scripts required a compressed file image (.wic).

2. Download and extract the file mfgtool-files-<machine_name>.tar.gz:

   tar -zxvf mfgtool-files-imx8mm-lpddr4-evk.tar.gz
   

3. Organize all the files, mirroring the tree below:

   ├── lmp-factory-image-imx8mm-lpddr4-evk.wic.gz
   ├── u-boot-imx8mm-lpddr4-evk.itb
   ├── sit-imx8mm-lpddr4-evk.bin
   ├── imx-boot-imx8mm-lpddr4-evk
   └── mfgtool-files-imx8mm-lpddr4-evk
        ├── bootloader.uuu
        ├── full_image.uuu
        ├── imx-boot-mfgtool
        ├── uuu
        └── uuu.exe
   

Hardware Preparation

Set up the board for updating using the manufacturing tools:

Top view of i.MX 8 M Mini EVK

1. OPTIONAL. Only required if you have problems or want to see the boot console output.

   Connect the micro-B end of the USB cable into debug port J901. Connect the other end of the cable to a PC acting as a host terminal. Two UART connections will appear on the PC. For example, on a Linux host:

   ls -l /dev/serial/by-id/
    total 0
    lrwxrwxrwx 1 root root 13 Dec 18 11:09 usb-FTDI_Dual_RS232-if00-port0 -> ../../ttyUSB0
    lrwxrwxrwx 1 root root 13 Dec 18 11:09 usb-FTDI_Dual_RS232-if01-port0 -> ../../ttyUSB1
   

   Using a serial terminal program like minicom, connect to the port with if01 in the name (in this example ttyUSB1). Apply the following configuration:

   • Baud rate: 115200
   • Data bits: 8
   • Stop bit: 1
   • Parity: None
   • Flow control: None

2. Ensure that the power is off (SW101)

3. Put the i.MX 8 M Mini EVK into programing mode:

   Switch SW1101 to ON, OFF, ON, OFF (from 1-4 bit) to Download Mode.

   

   Location of SW1101 dip switch on i.MX 8 M Mini EVK

4. Connect your computer to the i.MX 8 M Mini EVK board via the USB-C port 1 Download J301 jack.

5. Connect the USB-C power plug to the port 2 Power J302 jack.

6. Power on the i.MX 8 M Mini EVK board by sliding power switch SW101 to ON.

Flashing

Once in serial downloader mode and connected to your PC, the evaluation board should show up as an NXP® USB device.

For instructions on how to sign the required images before flashing them to the board with secure boot enabled, see Machines with Secure Aspects Enabled by FoundriesFactory.

LinuxWindows

1. Verify target is present:

   lsusb | grep NXP
    Bus 001 Device 023: ID 1fc9:012b NXP Semiconductors i.MX 8M Dual/8M QuadLite/8M Quad Serial Downloader
   

   In this mode you will use the uuu tools to program the images to the eMMC. The USB ID may differ if a different SoC is used.

2. To program the LmP to the EMMC run

   $ sudo mfgtool-files-imx8mm-lpddr4-evk/uuu mfgtool-files-imx8mm-lpddr4-evk/full_image.uuu
     uuu (Universal Update Utility) for nxp imx chips -- libuuu_1.4.243-0-ged48c51
   
     Success 1    Failure 0
   
   
     1:92     6/ 6 [Done                                  ] FB: done
   

3. Turn off the power

4. Put the board into run mode

Put the i.MX 8 M Mini EVK into run mode by switching SW1101 to OFF, ON, ON, OFF to set the board to boot from eMMC.

Power on the i.MX 8 M Mini EVK board by sliding the power switch SW101 to ON.