DHCOM iMX6ULL-D2

Scope

This is also the right page for the DHCOR module, because DHCOM is the reference design for the DHCOR module.

Hardware

Cortex-A7 NXP i.MX6ULL up to 900 MHz 128 - 1024 MByte NAND flash memory (8 bit bus width) or 4 - 16 GByte eMMC flash (8 bit bus width) 2 MB SPI boot flash 128 - 1024 MByte DDR3-400 On module microSD card socket (4 bit SDIO) [1] LC display controller, 18 bit colors, 1366x768 pixels On-chip touch controller for 4-wire resistive touch screens 2x Ethernet controller 10/100 Mbit, IEEE1588 conform [2] USB 2.0 OTG high-speed USB 2.0 host high speed 2x Standard UART with hardware handshake support [3][4] WiFi iEEE802.11b/g/n + Bluetooth v4.1 (BR/EDR/BLE) module on BGA [1][4] [1] On module microSD card socket is only available if WiFi is not mounted. [2] The second SPI is only available, if the second ethernet is not mounted. [3] CTS and RTS of the first UART is only available if second CAN port is not connected. [4] The second UART is only available if Bluetooth is not used. This means WiFi/BT module 1DX is not mounted or module 1FX (only WiFi) is mounted. [5] I²S lines are shared with JTAG.

2x CAN interface [3] 2x SPI interface [2] 2x I²C interface I²S Audio codec (1 x microphone, 1 x Line in, 1x Line out) [5] Real-time clock (I²C connection), low power temperature compensated 2x 10 bit analog input (I²C connection) 2x 256 Bytes EEPROM with integrated MAC address PWM channel 22 GPIOs (A-U + INT_HI_PRIO) JTAG debug connection via FFC plug connector Industrial temperature range (-40°C to +85°C) SODIMM-200 socket with DHCOM pin assignment

• Hardware Support

Product Change Notifications (PCN)

• PCN_DHCOR-iMX6ULL-001_R01_2020-02-18.pdf (IMX_THERMAL)
• PCN_DHCOR-iMX6ULL-002_R01_2020-02-18.pdf (SPEED_GRADING)
• PCN_DHCOR-iMX6ULL-003_R01_2020-02-18.pdf (Bootloader on eMMC)
• PCN_DHCOR-iMX6ULL-004_R01_2020-09-17.pdf (900MHz undervolt)
• PCN_DHCOR-iMX6ULL-005_R01_2021-05-05.pdf (VDD_SOC_CAP capacitor)
• PCN_DHCOR-iMX6ULL-006_R02_2021-05-10.pdf (PMIC buck converter mode)
• PCN_DHCOR-iMX6ULL-007_R01_2021-07-28.pdf (Change of PCB)

Software Support

• i.MX6ULL: Bootloader U-Boot
• i.MX6ULL: Linux
• DHCOM Update Mechanism
• Yocto on DHCOM

BSP Sources

U-Boot

• DH U-Boot (based on v2018.05)

Linux Kernel

• Mainline

• DH 4.19.135 Development
• DH 4.19.135 Release 2020-12-01 (Yocto reference)

Download binaries/images

U-Boot (for eMMC DHCOMs)

• https://www.dropbox.com/s/39hlif02isctapa/u-boot-with-spl_imx6ull_2018.05-DH_v0.28_emmc-gababd70ce7.imx?raw=1 DH U-Boot v0.28 (based on v2018.05)]

More on how to program it with the U-Boot command "update bootloader ..." on the page "DHCOM Update Mechanism"

Update Kernel

• Update Kernel Release 2020-12-02

More on how to use it on the page "DHCOM Update Mechanism"

Debian based images

• Debian 10 "Buster" + Kernel 4.19.135 Release 2020-12-01

• SD card: 2GB image (xz compressed)

Open it with Disks by double click on Debian Linux. Use balenaEtcher on Windows.

• eMMC: USB stick update image

Extract the files on a USB stick (MBR / FAT32) and insert it into your board / device. More about the files on the page "DHCOM Update Mechanism"

Hint: You can also progam the eMMC by using the U-Boot command "ums" (usable since U-Boot v2018.05)