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Linux-ready DaVinci COM handles dual 1080p displays

Apr 16, 2015 — by Eric Brown 1,063 views

iWave unveiled a Qseven COM with 1080p support that runs Linux on TI’s DSP-enabled DaVinci DM8168 SoC. iWave also updated an i.MX6 Qseven COM with 2GB RAM.

iWave’s iW-RainboW-G12M-Q7 module runs Linux on a Texas Instruments DaVinci DM8168 system-on-chip. The SoC combines a 1.2GHz Cortex-A8 core with an Imagination PowerVR SGX530 GPU and a TI C674x DSP for enhanced HD video processing. Another Linux-based computer-on-module that supports the DM8168 is the Infochips DM816x SOM.

(click image to enlarge)

The iW-RainboW-G12M-Q7 complies with the 70 x 70mm Qseven form factor, which iWave has also tapped for its Altera Cyclone V SX based iW-RainboW-G17M-Q7 and Freescale i.MX6-based W-RainboW-G15M Qseven modules. The latter has just received a 2GB RAM upgrade (see farther below).

The new iW-RainboW-G12M-Q7 supports applications including industrial automation, HMI, video surveillance, medical devices, PoS, networking, and SBCs, says India-based iWave. The module is equipped with a Linux 2.6.37 BSP, and offers five year support. Options include a generic iW-RainboW-G7D ARM carrier board, as well as custom development services.

iW-RainboW-G12M-Q7 block diagram
(click image to enlarge)

The iW-RainboW-G12M-Q7 is equipped with 1GB DDR3 RAM, a microSD slot, and 128MB of onboard NAND flash, which is said to be expandable. The I/O is split between an expansion connector and the Qseven edge connector, which carries most of the signals, as shown in the block diagram above. The spec table below shows the interfaces sorted by I/O type. (Note that the product page incorrectly links to the wrong block diagram, but the correct diagram shown above can be found in the PDF data sheet.)


The module offers a variety of video interfaces, including HDMI, LVDS, a pair of analog HD video inputs, and both analog HD and SD video outputs. A gigabit Ethernet controller is provided, as well as support for four USB 2.0 host ports, a USB device port, dual SATA connections, and an SDIO interface. Dual PCIe 2.0 connections are provided, along with a variety of serial and GPIO interfaces.

Specifications for the iW-RainboW-G12M-Q7 include:

  • Processor — TI DaVinci DM8168 (Cortex-A8 core @ 1.2GHz); TI C674x DSP; PowerVR SGX530 GPU
  • Memory:
    • 1GB DDR3 SDRAM
    • 128MB NAND flash with optional expansion
    • MicroSD slot (default boot)
  • Storage I/O — 2x SATA; 1x SD/SDIO
  • Video I/O:
    • HDMI 1.3
    • 2x HD video in
    • Analog HD video out
    • Analog SD video out
    • LVDS
    • 3x audio McASP
    • Dual simultaneous 1080p display support
  • Networking — gigabit Ethernet controller
  • Other I/O (most via Qseven edge connector):
    • 4x USB 2.0 host/device
    • USB 2.0 device
    • 3x UART (including 1x debug)
    • JTAG headers
    • SPI, I2C, I2S
    • GPIO
    • 2x PCIe 2.0
  • Power — 5V 2A
  • Dimensions — 70 x 70mm; Qseven 1.2
  • Operating system – Linux 2.6.37 BSP

iW-RainboW-G15M-Q7 COM updated

We missed the iW-RainboW-G15M-Q7 when it was first announced, but are happy to add it now. iWave recently updated the module to double its RAM support to 2GB of DDR3 RAM when ordered in quantities of 500 pieces or more. A 4GB RAM option is available upon special request. The module joins other Linux-ready Qseven COMs running the Cortex-A9-based Freescale i.MX6 , including Aaeon’s AQ7-IMX6 and Advantech’s ROM-7420.

iWave’s newly updated i.MX6-based iW-RainboW-G15M-Q7

Aside from the RAM boost, the module appears to be the same. You can run Linux 3.10.17 or Android 4.3 on any of the i.MX6 models, from Solo to Quad, at up to 1GHz. You also get 4GB of eMMC flash and 2MB SPI flash, both of which are said to be expandable.

iW-RainboW-G15M-Q7 block diagram
(click image to enlarge)

Like most i.MX6 modules, the iW-RainboW-G15M-Q7 provides an extensive set of interfaces, including HDMI, LVDS, CAN, USB, SATA, PCIe, and MIPI-CSI camera ports, as shown in the block diagram above. Industrial -40 to 85°C temperature support is standard.

Further information

The TI DaVinci-based iW-RainboW-G12M-Q7 module appears to be available now. More information may be found on iWave Systems’s the iW-RainboW-G12M-Q7 product page.

More information on the update to the i.MX6-based iW-RainboW-G15M-Q7, with links to the product page, may be found here.

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