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SODIMM-style i.MX6 module offers WiFi, Bluetooth, eMMC

Sep 30, 2014 — by Eric Brown 2,327 views

Variscite has refreshed its Linux- and Android-ready, Freescale i.MX6 based VAR-SOM-MX6 module, adding WiFi, Bluetooth, and up to 64GB of eMMC.

The original VAR-SOM-MX6 computer-on-module arrived before LinuxGizmos launched in early 2013. Now Variscite has delivered an update that adds a WiFi and Bluetooth module, and adds up to 64GB of eMMC flash. Otherwise, the module appears to be the same, but since it’s new to us, we’ll give it the full treatment here.

(click image to enlarge)

The SODIMM-style, 68 x 52mm VAR-SOM-MX6_V2 supports Yocto or Ubuntu flavors of Linux, as well as Android (version unstated) and WEC 7.0. The module can integrate the Solo, DualLite, Dual, or Quad versions of Freescale’s Cortex-A9-based i.MX6 system-on-chip, and is clocked to 1.2GHz. Variscite mentions the SoC’s Vivante GC2000 as the GPU, although Freescale ships a less capable Vivante GC880 GPU on the Solo and DualLite versions. The Vivante GC880 is still capable of handling Open GL ES 2.0 and 1080p video decode, however.

The module ships with 256MB to 4GB DDR3 RAM, 128MB to 1GB SLC NAND flash, and the newly available 4GB to 64GB eMMC NAND flash. A gigabit Ethernet controller is available along with the new Texas Instruments WiLink8 wireless module, which offers optional MIMO with its 802.11n, and also supplies Bluetooth 4.0.

VAR-SOM-MX6_V2 block diagram
(click image to enlarge)

Interfaces available via the SODIMM connectors include HDMI, DSI, and dual-channel LVDS video. The module is further equipped with digital and parallel camera interfaces, as well as digital (S/PDIF) and analog audio I/O.


The VAR-SOM-MX6_V2 ships with SDIO, SATA, and USB 2.0 host and OTG interfaces for storage and other peripherals. You get a pair each of CAN, SPI, and I2C connections, plus three UARTs, and a PCIe interface. The product also ships with Freescale’s EIM (External Interface Module) bus for connecting to an external FPGA. The module is available in commercial, extended, and industrial (-40 to 85°C) temperature versions.

Summary of VAR-SOM-MX6_V2 specs

Specifications listed for the VAR-SOM-MX6_V2 include:

  • Processor — Freescale i.MX6 (1x, 2x, or 4x ARM Cortex-A9 cores @ 1.2GHz) with Vivante GPU
  • Memory:
    • 256MB to 4GB DDR3 RAM
    • 4GB to 64GB eMMC NAND flash
    • 128MB to 1GB SLC NAND flash
  • Display:
    • 2x 24-bit LVDS (1920 x 1080)
    • DSI (24-bit, 1920 x 1080)
    • HDMI 1.4 (1920 x 1080)
    • 4-wire resistive touch support
  • Wireless — TI WiLink8 module with 802.11 a/b/g/n 2.4/5GHz (with optional MIMO) and Bluetooth 4.0
  • Networking — gigabit Ethernet controller
  • Other I/O:
    • SDIO/MMC
    • SATA II
    • USB 2.0 host
    • USB 2.0 OTG
    • S/PDIF audio
    • Audio line-in, line out, digital mic-in
    • CSI (camera)
    • 2x CPI (camera)
    • 3x UART (up to 3.6Mbps)
    • 2x I2C
    • 2x SPI
    • 2x CAN bus
  • Expansion — PCIe Gen2 interface; EIM external bus
  • Other features — RTC (on carrier)
  • Operating temperature — 0 to 70°C, -20 to 70°C, or -40 to 85°C
  • Power — 3.3V
  • Dimensions — 67.8 x 51.5 x 4.5mm
  • Operating system — Linux (Yocto or Ubuntu; Android; Windows Embedded Compact 7.0 and 2013

Lumus DK-40

Variscite also announced the production availability of its VAR-SOM-AM33″ module, which we covered in late July when it began sampling. The module is based on the 1GHz TI Sitara AM335x SoC.

In addition, the Variscite website features a design win promo for the Lumus DK-40 eyewear computer, which was announced earlier this year as an OEM product. The military-grade Lumus DK-40 incorporates Variscite’s DART-4460 module, running Android on the module’s 1.5GHz, dual-core TI OMAP4460 system-on-chip.

VAR-SOM-MX6_V2 on YouTube

Further information

The VAR-SOM-MX6_V2 is available now, starting at $52, says Variscite. More information may be found on the company’s VAR-SOM-MX6_V2 product page

(advertise here)

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