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i.MX8M Plus SBC loads up on features

Sep 1, 2021 — by Eric Brown 499 views

Forlinx’s “OKMX8MP-C” SBC delivers NXP’s i.MX8M Plus via an “FETMX8MP-C SoM.” The SBC offers 2x GbE, 3x USB 3.0, HDMI 2.0, MIPI DSI/CSI, M.2, mini-PCIe, PCIe, and -40 to 85°C support.

Earlier this year, China-based Forlinx introduced sandwich-style OKMX8MM-C and OKMX8MQ-C SBCs based on NXP’s i.MX8M Mini and i.MX8M Quad, respectively. Now it has launched another feature-rich, COM-and-carrier SBC built around another i.MX8 family processor. The OKMX8MP-C SBC’s FETMX8MP-C SoM is equipped with an NPU-equipped i.MX8M Plus, which we most recently saw on Ibase’s IBR215 Pico-ITX SBC.

OKMX8MP-C (left) and FETMX8MP-C
(click images to enlarge)

The i.MX8M Plus is equipped with 4x up to 1.6GHz Cortex-A53 cores plus Vivante GC7000UL 3D and GC520L 2D GPUs, an 800MHz Cortex-M7 MCU, an 800MHz HiFi4 DSP, and dual ISPs. The Plus is the only i.MX8 family SoC with an AI accelerator: a 2.3-TOPs NPU.

The FETMX8MP-C SoM is available with the standard quad-core version of the i.MX8M Plus, although the CNXSoft post that alerted us to the products says a dual-core version is coming. The module ships with Linux 5.4.70 with Qt 5.15, as well as an unspecified version of Android.


The 63 x 36mm FETMX8MP-C SoM is just slightly smaller than the FETMX8MQ-C found on the OKMX8MQ-C SBC. The module defaults to 4GB LPDDR4 but is available with a 2GB to 8GB range.

The 5V module ships with 16GB eMMC and like the full SBC supports a -40 to 85°C range. Four 80-pin B2B connectors support all the I/O listed below for the SBC plus SPDIF, QSPI, SAI, and additional SPI, I2C, PWM, and SD interfaces.

OKMX8MP-C (left) and detail view
(click images to enlarge)

The OKMX8MP-C SBC offers dual GbE ports, one with TSN. You also get WiFi/BT and M.2 B-key and mini-PCIe sockets with optional 5G and 4G modules. A PCie Gen3 x1 interface is also on board.

Media interfaces include HDMI 2.0a, LVDS, MIPI-DSI with optional touchscreen, 2x MIPI-CSI with optional cameras, and audio I/O. Other major ports include 2x USB 3.0, Type-C, serial, and 2x CAN-FD.

Specifications listed for the OKMX8MP-C include:

  • Processor (via FETMX8MP-C SoM) — NXP i.MX8M Plus (4x Cortex-A53 cores @ 1.6GHz); Vivante GC7000UL 3D and GC520L 2D GPUs; 2.3 TOPS NPU; 800MHz Cortex-M7; 800MHz HiFi4 DSP, 2x ISPs
  • Memory/storage:
    • 4GB LPDDR4 (optional 2-8GB) via FETMX8MP-C SoM
    • 16GB eMMC via FETMX8MP-C SoM
    • MicroSD slot
  • Networking:
    • 2x Gigabit Ethernet ports (1x with TSN)
    • 802.11ac and Bluetooth 5.0 (NXP AW-CM358M)
    • Wireless options available via M.2 and mini-PCIe
  • Media I/O:
    • HDMI 2.0a port up to 4K@30fps; HDMI 2.1 eARC support
    • Dual-channel LVDS up to 1920 x 1600 @ 60fps
    • MIPI-DSI (4-lane) up to 1024 x 600 @ 30fps; optional 7-inch Forlinx display
    • 2x MIPI-CSI (1x up to 2592 x 1944 with optional Omnivision OV5645 camera; 1x up to 3840 x 2160 with optional Basler daA3840-30mc-IMX8MP-EVK camera)
    • Audio I/O jack and 2x 1W8Ω speaker output (via WM8960)
  • Other I/O:
    • 2x USB 3.0 host ports
    • USB 3.0 Type-C port with DFP, UFP and DRP support
    • 2x serial debug ports
    • Isolated RS485 terminal plug port
    • 2x CAN-FD 2.0B terminal plug ports
    • 4x UART
    • 3x I2C, 2x PWM, ECSPI
    • JTAG
  • Expansion:
    • M.2 B-key slot for 5G module (optional Quectel RM500Q)
    • Mini-PCIe slot for 4G module (optional Quectel EC20)
    • PCIe Gen3 x1
  • Other features — RTC with coincell holder; switch and reset buttons; 2x user buttons; 2x LEDs
  • Operating temperature — -40 to 85°C
  • Power — 12V DC jack
  • Operating system — Linux 5.4.70 with Qt 5.15; Android

Further information

The OKMX8MP-C appears to be available at an undisclosed price. No pricing or availability information was provided for the FETMX8MP-C SoM. More information may be found on the Forlinx OKMX8MP-C product page.

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