Silicon Labs UG435.05 User manual
UG435.05: Using Real-Time Operating
Systems with Silicon Labs Connect v3.x
This chapter of the Connect v3.x User's Guide describes how to
run the Silicon Labs Connect stack on top of one of the supported
Real-Time Operating Systems (RTOS). The Connect stack is delivered as part of the Silicon Labs Proprietary Flex SDK v3.0 and
higher. The Connect v3.x User's Guide assumes that you have already installed the Simplicity Studio development environment
and the Flex SDK, and that you are familiar with the basics of configuring, compiling, and flashing Connect-based applications. Refer to UG435.01: About the Connect v3.x User's Guide for an
overview of the chapters in the Connect v3.x User's Guide.
The Connect v3.x User's Guide is a series of documents that provides in-depth information for developers who are using the Silicon Labs Connect Stack for their application
development. If you are new to Connect and the Proprietary Flex SDK, see QSG168:
Proprietary Flex SDK v3.x Quick Start Guide.
Proprietary is supported on all EFR32FG devices. For others, check the device's data
sheet under Ordering Information > Protocol Stack to see if Proprietary is supported. In
Proprietary SDK version 2.7.n, Connect is not supported on EFR32xG22.
KEY POINTS
• Introduces Real-Time Operating System
support.
• Discusses the CMSIS-RTOSv2 API.
• Discusses the Connect Stack IPC
component features.
• Describes the Virtual NCP architecture
details.
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UG435.05: Using Real-Time Operating Systems with Silicon Labs Connect v3.x
Introduction
1. Introduction
The Silicon Labs Connect RTOS support is available as software components in Simplicity Studio. To enable this support requires very
little effort on the part of application developers.
The RTOS-specific calls of Connect and other Silicon Labs components are implemented using the ARM CMSIS-RTOSv2 API. This
allows support of any RTOS implementation (or kernel) that provides the CMSIS-RTOSv2 API. However, Silicon Labs recommends
using the implementations that are available in Simplicity Studio as components in the RTOS group, because these were validated
against Silicon Labs stacks, including Connect. As of this writing, Micrium OS and FreeRTOS are supported in Flex SDK 3.1. For more
details on CMSIS-RTOSv2, see the CMSIS-RTOS2 Documentation.
Silicon Labs does not recommend using the CMSIS-RTOSv2 API from the application unless the developed application needs to support multiple kernels. If the application needs to support a single RTOS, using the API provided by the kernel is simpler and cleaner.
For details on how to use the RTOS implementation of your choice, refer to the documentation for the given RTOS. For documentation
on the Micrium OS, see http://doc.micrium.com.
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