emApps

SEGGER emApps introduces application virtualization to deeply embedded systems, enabling dynamic loading and execution of isolated applications on microcontrollers that traditionally run monolithic firmware. Awarded Best in Show at Embedded World 2026, emApps represents a fundamental shift in how embedded software is architected, allowing device manufacturers to deploy, update, and sandbox individual application components independently of the base firmware.

Platform Approach

emApps is not just a library, it is a platform for building extensible embedded products. The architecture separates the device firmware into two layers:

• System firmware: the base layer that manages hardware, RTOS, and system services. This layer is flashed once and rarely updated.
• Applications: lightweight, sandboxed programs that are dynamically loaded, executed, and updated independently. Multiple apps can run concurrently with full isolation.

This separation enables product architectures that were previously impossible on microcontrollers: app stores for embedded devices, third-party plugin ecosystems, field-updatable feature modules, and A/B application deployment with instant rollback.

Resource Efficiency

The emApps executor requires just 2.5 KB of ROM and 102 bytes of RAM per execution context, making hardware sandbox isolation practical even on the smallest Cortex-M0+ devices. Each loaded application runs in its own isolated context with controlled access to system resources, preventing a faulty or compromised app from affecting other running applications or the underlying system firmware. This isolation model enables secure third-party app ecosystems on embedded devices, a capability previously reserved for Linux-class processors.

Benefits for Product Teams

For product teams, emApps means faster iteration cycles and reduced certification scope:

• Independent updates: individual applications can be updated in the field without reflashing the entire firmware image
• Reduced re-certification: the isolation boundary means that a change to one app does not require re-testing or re-certifying others
• Faster time-to-market: parallel development of system firmware and application modules
• Third-party extensibility: enable partners or customers to develop sandboxed plugins for your device
• Secure by design: hardware-enforced isolation prevents a compromised app from affecting the system or other apps

Technical Specifications

Feature	Specification
Executor ROM	2.5 KB
RAM per Context	102 bytes
Isolation	Hardware sandbox (MPU-based)
App Loading	Dynamic, independent of base firmware
Concurrency	Multiple apps run simultaneously
Architectures	Arm Cortex-M0+ through Cortex-M85
RTOS Integration	embOS, FreeRTOS, bare-metal
Update Model	Individual app update without full reflash
Licensing	Royalty-free
Award	Best in Show, Embedded World 2026

Combined with SEGGER’s embOS RTOS and J-Link debug infrastructure, emApps completes a modern embedded development stack that brings software engineering best practices to resource-constrained devices.