MISC-TN-022: Advanced controller for DMX / RDM lighting applications
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Contents
History[edit | edit source]
| Version | Date | Notes |
|---|---|---|
| 1.0.0 | May 2022 | First public release |
Introduction[edit | edit source]
This Technical Note (TN for short) illustrates the concept of a custom product developed by DAVE Embedded Systems for a customer operating in the professional lighting market. It is a useful use case for showing some interesting technologies that can address common requirements in the world of embedded systems for industrial applications.
Overview[edit | edit source]
The following image depicts the product's block diagram.
As shown, the product features a rich set of I/O interfaces ranging from the DMX/RDM channels to the network connectivity.
The core of the systems is the Orca SoM, which in turn is built around the i.MX8M Plus system-on-chip. From the computational standpoint, two there are two domains running two different operating systems. In this regard, the resulting architecture is an example of heterogeneous asymmetric multi-processing as it is based on different types of cores, namely ARM Cortex-A53 and ARM Cortex-M7.
The system architect chose this implementation because it is convenient to satisfy the diversified product's requirements. In particular, the DMX/RDM subsystem must meet real-time requirements in order to be compliant with the DMX/RDM standards that would be hard to fulfill with
