Rugged, Sandwich-Style SBC is Based on Sitara AM5718 MCU

By Eric Brown

Forlinx Embedded Technology, the Chinese company behind Linux-friendly SBCs such as the Texas Instruments (TI) Sitara AM3354 based OK335xS-II and the Forlinx i.MX6 SBC, has posted details on a new OK5718-C SBC. Like the OK335xS-II, it’s a Sitara based board, in this case tapping TI’s single-core, Cortex-A15 based Sitara AM5718. Like the i.MX6 SBC, it’s a sandwich-style offering, with the separately available FET5718-C module hosting the up to 1.5GHz AM5718.


OK5718-C
The OK5718-C was announced (translated) in China back in May, and the product page was recently spotted by CNXSoft. The FET5718-C module and OK5718-C SBC both support -40 to 85℃ temperatures and feature an optimized Linux distro with Linux 4.9.41, Qt 5.6, and Wayland. The BSP includes PCIe host and slave mode optimizations, a simplified file system for faster boot and flashing, and an image system to allow Weston virtual keyboards and easy Qt image stacking, says Forlinx.

FET5718-C module

The FET5718-C module’s Sitara AM5718 SoC may have a somewhat old-school CPU, but it provides plenty of extras. You get both a PowerVR SGX544 3D GPU and Vivante GC320 2D GPU, as well as a 750MHz TI DSP-C66X digital signal processor and video accelerator. There’s also the same, 200MHz programmable PRU subsystem found on the BeagleBone, as well as dual, 213MHz Cortex-M4 microcontrollers.



FET5718-C 

The combination of the DSP with the real-time MCUs enables robotics, machine vision, medical imaging, automotive, and facial recognition applications. Industrial automation and building automation applications are also supported.

The FET5718-C module adds 1GB DDR3L, 8GB eMMC, a TPS659162RGZR power management unit, and a 3-port Gigabit Ethernet switch subsystem. The 12-layer, 70 x 50mm COM runs on 5V power and has a 320-pin board-to-board connector.

OK5718-C board

The 4-layer, 190 x 130mm OK5718-C baseboard expands upon the FET5718-C features with ports popping out on all sides. The board provides 2x GbE ports, onboard WiFi and Bluetooth, and a mini-PCIe slot with optional 3G/4G. There are single USB 3.0 host and micro-USB 2.0 device ports and a pair of USB 2.0 host ports.

The OK5718-C is further equipped with an HDMI port, an SD slot, a CAN port, and dual audio jacks. Onboard I/O includes SATA 2.0 with power, DVP and 2x MIPI-CSI camera interfaces, and other I/O as detailed below.



OK5718-C detail view
(click image to enlarge)

Specifications listed for the OK5718-C SBC include:

  • Processor (via FET5718-C module) — TI Sitara AM5718 (1x Cortex-A15 core @ up to 1.5GHz; PowerVR SGX544 3D GPU; Vivante GC320 2D GPU; 750MHz TI DSP-C66X; IVA-HD image/video accelerator; 200MHz PRU-ICSS; 2x 213MHz Cortex-M4
  • Memory/storage:
    • 1GB DDR3L (via FET5718-C)
    • 8GB eMMC (via FET5718-C)
    • QSPI flash (via FET5718-C)
    • SD slot (SD, SDHC, SDXC support)
    • SDIO interface
    • SATA 2.0 interface with SATA power
  • Wireless — 802.11b/g/n with Bluetooth
  • Networking — 2x GbE ports
  • Media I/O:
    • HDMI 1.4a port for up to 1080P@60Hz
    • RGB 888 LCD interface
    • Dual display support
    • 2x MIPI-CSI
    • DVP 8-bit 5MP camera interface
    • Mic and headphone jacks; speaker headers
  • Other I/O:
    • USB 3.0 host port
    • 2x USB 2.0 host ports
    • Micro-USB 2.0 device port
    • 3x UART
    • 2x I2C
    • Serial debug port
    • CAN 2.0, SPI, GPMC, HDQ, JTAG
  • Expansion — Mini-PCIe slot with optional Huawei 3G/4G card
  • Other features — 2x LED; 3x user keys; RTC with coin-cell battery; boot config switch
  • Power — 12V DC input; power and reset switches
  • Operating temperature — -40 to 85°C
  • Dimensions — 190 x 130mm
  • Operating system — Custom Linux with Kernel 4.9.41, Qt 5.6, and Wayland

Further information

No pricing or availability information was provided for the OK5718-C SBC or FET5718-C module. More information may be found on the Forlinx OK5718-C and FET5718-C product pages. There’s also a product page at Faststream Technologies.

This article originally appeared on LinuxGizmos.com on August 20.

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