A diagram comparing the long development path of using an i.MX 8 System on Module versus the fast path of using an integrated edge gateway.

i.MX 8 System on Module: A Faster Path from Prototype to Production

Written by: Robert Liao

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Published on

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Time to read 6 min

Author: Robert Liao, Technical Support Engineer

Robert Liao is an IoT Technical Support Engineer at Robustel with hands-on experience in industrial networking and edge connectivity. Certified as a Networking Engineer, he specializes in helping customers deploy, configure, and troubleshoot IIoT solutions in real-world environments. In addition to delivering expert training and support, Robert provides tailored solutions based on customer needs—ensuring reliable, scalable, and efficient system performance across a wide range of industrial applications.

Summary

For engineers developing a new edge device, choosing an  imx8 system on module is a popular starting point due to its power and flexibility. However, the path from a bare SoM to a market-ready product is filled with hidden costs and delays. 

This guide compares the traditional SoM and custom  carrier board approach with using a fully integrated, pre-certified industrial edge gateway. 

We'll show you how a solution like the Robustel EG5120, powered by the  nxp imx8 som, can drastically reduce your  hardware development effort and accelerate your  time to market.

Introduction

If you're an embedded systems engineer, you know the NXP i.MX 8 series. Its powerful multi-core ARM architecture and advanced processing capabilities make it a top choice for demanding edge computing applications. Naturally, starting your design with an imx8 system on module seems like a logical first step. It gives you a powerful core and the freedom to design a custom solution around it.

But what if that freedom comes at a hidden cost? A cost measured not just in dollars, but in months of engineering effort, frustrating development cycles, and delayed product launches. In my experience, the real challenge isn't the SoM itself; it's everything that comes after. Let's explore a smarter, faster path from your i.MX 8 concept to a globally deployed product.

Understanding the Power of the i.MX 8 System on Module for Edge Computing

There's no debate: the NXP i.MX 8 family, especially variants like the i.MX 8M Plus, is a beast. Starting with an  arm system on module based on this processor gives your project a massive head start with a proven computational core.

What is a System on Module (SoM) and Why Do Engineers Choose It?

An  embedded system on module is a small board that contains the most complex parts of an embedded system: the processor, RAM, and flash storage. Engineers choose SoMs to handle the high-speed, complex part of the design so they can focus on creating a custom  carrier board that holds the unique I/O and interfaces for their specific application. It's a great strategy for creating highly customized hardware.

The NXP i.MX 8 Series: A Benchmark for High-Performance Edge Computing

The i.MX 8, and specifically the  imx8m plus module, is sought after for good reason. It offers:

  • Powerful multi-core ARM Cortex-A53 processors for running complex applications.
  • An integrated NPU (Neural Processing Unit) for efficient AI and machine learning workloads.
  • Advanced multimedia and graphics capabilities.

It's the perfect brain for a next-generation edge device. But a brain needs a body.

The Hidden Hurdle: The Long Road from an i.MX 8 SoM to a Market-Ready Product

This is the part of the project that isn't discussed enough. As any hardware engineer knows, integrating a SoM is just the beginning of a long and challenging journey.

The Challenge of Custom Carrier Board Design and Manufacturing

Designing a stable, reliable carrier board is a significant engineering task. It involves complex power management design, signal integrity analysis for high-speed interfaces, and multiple prototype spins to iron out bugs. This process can easily take 6-12 months and tens of thousands of dollars before you even have a stable hardware platform.

The Burden of Driver Integration and BSP (Board Support Package) Maintenance

Once you have hardware, you need software. You have to build a Board Support Package (BSP), write custom drivers for all your peripherals, and port a Linux distribution like Debian. This is a highly specialized skill set. Furthermore, you are now responsible for maintaining this custom OS for the entire lifecycle of your product, including security patches and updates.

The “Final Boss”: Navigating Costly and Time-consuming Global Certifications (CE, FCC, etc.)

Your product isn't finished until it's certified. Getting your custom hardware through regulatory testing for CE (Europe), FCC (USA), IC (Canada), and other global standards is a massive, expensive, and time-consuming hurdle. A single failure can force a costly redesign and add months to your timeline. This is often the stage where promising projects face critical delays.


A diagram comparing the long development path of using an i.MX 8 System on Module versus the fast path of using an integrated edge gateway.


A Smarter Alternative: Leveraging a Fully Integrated Industrial Edge Gateway

What if you could skip 90% of that hardware development pain and get straight to working on your application? That's the value proposition of a fully integrated industrial edge gateway.

Introducing the Robustel EG5120: An i.MX 8M Plus Solution, Ready to Deploy

The Robustel EG5120 is an  industrial gateway built around the very same high-performance NXP i.MX 8M Plus processor you're evaluating. But it's not just a processor on a board. It is a complete, market-ready product that includes:

  • A professionally designed and validated  carrier board with a rich set of industrial I/O (RS485, Gigabit Ethernet, Digital Inputs/Outputs).
  • A mature, stable, and secure operating system, RobustOS Pro, which is based on Debian 11 and includes full  Docker support.
  • A full suite of global certifications, including CE, FCC, IC, RCM, and more, right out of the box.

The Robustel EG5120 industrial edge gateway with labels highlighting its key features as a fully integrated solution.


How an Integrated Approach Slashes Your Time-to-Market

By starting with a device like the EG5120, you are effectively leapfrogging the entire custom hardware development cycle. Instead of spending 12-18 months on board design, driver development, and certification, your team can start developing your value-added application on day one.

i.MX 8 System on Module vs. Integrated Gateway: A TCO Comparison

Let's be honest about the total cost. While a bare  imx8 system on module might have a lower upfront price, the Total Cost of Ownership (TCO) tells a very different story.


Metric

DIY with i.MX 8 SoM

Integrated Gateway (e.g., EG5120)

Time-to-Market

12 - 24 months

1 - 3 months

Upfront Hardware Cost

Low (for SoM only)

Medium

R&D Engineering Cost

Very High (Hardware & Software teams)

Very Low

Certification & Lab Fees

Very High ($50k - $100k+)

Included

OS & Security Maintenance

High (Your responsibility)

Included (Managed by vendor)

Total Cost of Ownership

VERY HIGH

LOW


Learn More:

[The Real Cost of Developing an Electronic Product]


The choice becomes clear. While the DIY path offers maximum customization, the integrated gateway path offers maximum speed, minimum risk, and a dramatically lower TCO.


Learn More:

[A Deep Dive into IoT Edge Devices]


An iceberg graphic showing that the purchase price of an i.MX 8 System on Module is only a small part of the total cost of ownership.


FAQ: i.MX 8 SoM and Edge Gateways

Why use an industrial gateway instead of building from a system on module?

The primary reason is to accelerate  time to market. A pre-certified, fully integrated gateway like the Robustel EG5120 eliminates 12-24 months of custom hardware design, software development, and regulatory certification, allowing you to focus on your application instead of reinventing the core hardware platform.

What are the key benefits of the i.MX 8M Plus processor in the EG5120?

The key benefits of the NXP  imx8m plus module inside the EG5120 are its powerful quad-core ARM CPU for running complex applications, and its integrated 2.3 TOPS NPU, which provides dedicated hardware acceleration for running demanding AI and machine learning models directly at the edge.

Do I lose software freedom by choosing an integrated gateway over a custom SoM?

That's a valid concern, but with modern gateways, the answer is no. A device like the EG5120 runs RobustOS Pro, which is based on a standard Debian 11 environment and provides full Docker container support. This gives developers a familiar, open-source Linux environment where they can deploy virtually any custom application. You get the software freedom of a custom build without the hardware development and certification headaches.