i.MX 8 ULP Evaluation Kit¶

Preparation¶

The instructions in this section show the preparation before the flashing procedure.

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

Download necessary files from https://app.foundries.io/factories/<factory>/targets
1. Click the latest Target with the platform-devel Trigger.
2. Expand the run in the Runs section which corresponds with the name of the board and download the Factory image for that machine.
  
  E.g:
  
  lmp-factory-image-<machine_name>.wic.gz
  
  u-boot-<machine_name>.itb
  
  imx-boot-<machine_name>
Extract the file lmp-factory-image-<machine_name>.wic.gz:
```
gunzip lmp-factory-image-imx8ulp-lpddr4-evk.wic.gz
```
Download and extract the file mfgtool-files-<machine_name>.tar.gz:
```
tar -zxvf mfgtool-files-imx8ulp-lpddr4-evk.tar.gz
```

Organize all the files like the tree below:

├── lmp-factory-image-imx8ulp-lpddr4-evk.wic
├── u-boot-imx8ulp-lpddr4-evk.itb
├── imx-boot-imx8ulp-lpddr4-evk
└── mfgtool-files-imx8ulp-lpddr4-evk
     ├── bootloader.uuu
     ├── full_image.uuu
     ├── SPL-mfgtool
     ├── u-boot-mfgtool.itb
     ├── uuu
     └── uuu.exe

Hardware Preparation¶

Set up the board for updating using the manufacturing tools:

Top view of i.MX 8 ULP EVK

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 J17. Connect the other end of the cable to a PC acting as a host terminal. Three UART connections will appear on the PC. On a Linux host for example:
ls -l /dev/serial/by-id/ otal 0 rwxrwxrwx 1 root root 13 Feb 13 12:59 usb-0403_FT4232H_9266A2-if00-port0 -> ../../ttyUSB0 rwxrwxrwx 1 root root 13 Feb 13 12:59 usb-0403_FT4232H_9266A2-if02-port0 -> ../../ttyUSB2 rwxrwxrwx 1 root root 13 Feb 13 12:59 usb-0403_FT4232H_9266A2-if03-port0 -> ../../ttyUSB3
Using a serial terminal program like minicom, connect to the port with if02 in the name (in this example ttyUSB2) and apply the following configuration:
Baud rate: 115200

Data bits: 8

Stop bit: 1

Parity: None

Flow control: None
Ensure that the power is off (SW10)
Put the i.MX 8 ULP EVK into programing mode:

Switch SW5 to X, X, X, X, X, X, ON, OFF (from 1-8 bit) to Download Mode.

Location of SW5 dip switch on i.MX 8 ULP EVK
Connect your computer to the i.MX 8 ULP EVK board via the USB-C port 1 Download J15 jack.
Connect the USB-C power plug to the port 2 Power SW10 jack.
Power on the i.MX 8 ULP EVK board by sliding power switch SW10 to ON.

Flashing¶

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

Follow the instructios below.

Verify target is present:

lsusb | grep NXP
us 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.

Run the command below to program the LmP to the EMMC:

$ sudo mfgtool-files-imx8ulp-lpddr4-evk/uuu mfgtool-files-imx8ulp-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

Turn off the power.
Put the board into run mode

Start the Device Manager
Select View
Select Devices by container
Verify a device like the following:

Run the command below to program the LmP to the EMMC:

C:\Users\Someone> mfgtool-files-imx8ulp-lpddr4-evk\uuu.exe mfgtool-files-imx8ulp-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

Turn off the power.
Put the board into run mode

Put the i.MX 8 ULP EVK into run mode by switching SW5 to OFF, OFF, X, X, OFF, OFF, OFF, ON to set the board to boot from eMMC.

Power on the i.MX 8 ULP EVK board by sliding the power switch SW10 to ON.