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ESP32: QEMU Emulation Within a Docker Container
Abstract
The ESP32 is a popular microcontroller from Espressif that can be used in many embedded applications. Robotic joints, smart car chargers, beer vat agitators and automated bread mixers are a few examples where this system-on-a-chip excels. It is cheap to buy and has a number of vendors providing low-cost development board kits that come with the microcontroller and many external connection points with peripherals. There is a large software ecosystem for the ESP32. Espressif maintains an SDK containing many C-language sample projects providing a starting point for a huge variety of software services and I/O needs. Third party projects provide additional sample code as well as support for other programming languages. For example, MicroPython is a mature project with sample code and officially supported by Espressif. The SDK provides tools to not just build an application but also merge a flash image, flash to the microcontroller and monitor the output. Is it possible to build the ESP32 load and emulate on another host OS? This paper qualitatively explores the QEMU emulator and its ability to emulate the ethernet interface for the guest OS. Additionally, we look into the concept of containerizing the entire emulator and ESP32 load package such that a microcontroller flash image can successfully run with a one-step deployment of a Docker container.
... QEMU is an open-source machine emulator [28] that serves to emulate hardware that we can run our kernel on (see Fig. 2). It provides options for many different types of architectures which means we can emulate running our kernel on various devices. ...
Docker provide some facilities, which are useful for developers and administrators. It is an open platform can be used for building, distributing, and running applications in a portable, lightweight runtime and packaging tool, known as Docker Engine. It also provide Docker Hub, which is a cloud service for sharing applications. Costs can be reduced by replacing traditional virtual machine with docker container. It excellently reduces the cost of rebuilding the cloud development platform.
A system on chip (SoC) library for MOSIS scalable CMOS rules has been developed It is intended for use with Synopsys and Cadence Design Systems electronic design automation tools. Students can also use layout tools for semi-custom designs and insert them with the proposed design flow. Scalable submicron rules are used for the cell library, allowing it to be used for several AMI and TSMC technologies. Consequently, it is possible to fabricate student projects as well as do research in system on chip design through the MOSIS educational program. All steps in the design flow are fully automated with scripts and have been tested successfully in a large VLSI design class at the Illinois Institute of Technology.
This paper studies the evolution of a real-time operating system, the open source FreeRTOS. We focus on the changes in real-time performance and behaviour over the last ten years. Six major release versions are benchmarked, presenting quantitative and qualitative development trends. We also use the available source code to discover the reasons for the changes. By analysing the results, we draw some conclusions related to this RTOS's evolution which can be useful for the FreeRTOS group, other RTOS developments, and also RTOS users.
A study is performed on the CMake build manager. CMake is an open-source, cross-platform C/C++ build manager that lets the user specify build parameters in a text file. It also includes integrated support for regression testing. It provides the ability to determine the byte order and other hardware-specific characteristics, when developing the cross-platform software.
Internet of Things Projects with ESP32: Build Exciting and Powerful IoT Projects Using the All-New Espressif ESP32
- A Kurniawan