iMX8M Industrial RecoveryVoipac webshop

Description

The recovery procedure consists of following steps:

• Downloading binaries from Voipac download webpage
• Flashing binaries and filesystem over Baseboard USB-C connector
• Setting a suitable dtb file in bootloader (u-boot)
• Resetting and booting a module

Recommended Software

• Universal Update Utility (UUU)
• Windows Command Promt
• TFTP Server
• DHCP Server (Otional)

Configuration

Updating U-boot and Filesystem

Download u-boot file:

https://downloads.voipac.com/index.php?p=iMX8M_Industrial_Development_Kit/module/software/yocto/binaries

Download filesystem:

https://downloads.voipac.com/index.php?p=iMX8M_Industrial_Development_Kit/module/software/filesystem

Download Universal Update Utility (UUU) if needed:

https://github.com/nxp-imx/mfgtools/releases

Create a new folder e.g. C:\uuu and move all downloaded files into it.

Flashing uboot and filesystem

Prepare Voipac baseboard and follow the steps to flash the module as shown on this page.

Setting a suitable dtb file in bootloader (u-boot)

Stop autoboot in bootloader:

U-Boot 2020.04-imx_v2020.04_5.4.24_2.1.0+g4979a99482 (May 30 2020 - 06:50:01 +0000)

CPU:   i.MX8MQLite rev2.1 1300 MHz (running at 800 MHz)
CPU:   Industrial temperature grade (-40C to 105C) at 72C
Reset cause: POR
Model: VOIPAC i.MX8MQ EVK
DRAM:  2 GiB
MMC:   FSL_SDHC: 0, FSL_SDHC: 1
Loading Environment from MMC... *** Warning - bad CRC, using default environment

[*]-Video Link 0fail to find display device
probe video device failed, ret -19

        [0] display-controller@32e00000, video
fail to find display device
probe video device failed, ret -19
In:    serial
Out:   serial
Err:   serial

 BuildInfo:
  - ATF b0a00f2
  - U-Boot 2020.04-imx_v2020.04_5.4.24_2.1.0+g4979a99482

switch to partitions #0, OK
mmc0(part 0) is current device
flash target is MMC:0
Net:
Warning: ethernet@30be0000 using MAC address from ROM
eth0: ethernet@30be0000
Fastboot: Normal
Normal Boot
Hit any key to stop autoboot:  0
u-boot=>

Enter command: fatls mmc 0:1 (filesystem in eMMC) or fatls mmc 1:1 (filesystem in SD Card) to see a list of DTB files:

u-boot=> fatls mmc 0:1
 27787776   Image
    45970   imx8mq-evk-voipac-dp.dtb
    46177   imx8mq-evk-voipac-hdmi.dtb
    46578   imx8mq-evk-voipac-lvds-koe.dtb
    46582   imx8mq-evk-voipac-lvds-newhaven.dtb

5 file(s), 0 dir(s)

u-boot=>

Select the required DTB file and enter the command to set it up:

u-boot=> setenv fdt_file imx8mq-evk-voipac-hdmi.dtb
u-boot=>

Save:

u-boot=> saveenv
Saving Environment to MMC... Writing to MMC(0)... OK
u-boot=>

Enter boot command or reset the baseboard for image loading.