Software Development and Support

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Embedded software development is a multidimensional effort that you can address by leveraging open-source compiler tools and operating systems.

Simplify Embedded-System Development with Open-Source Software

The design, integration, and deployment of embedded-system software present many challenges related to the operating system, development environment, middleware, compiler, and other software tools. Although you can purchase commercial software products to meet many of your requirements, you might find that open-source tools offer the optimum approach to some or all of your embedded software needs. But be sure to evaluate the tradeoffs before committing to a specific approach.

Commercial software generally comes with training and support. On the other hand, with open-source software, you’ll assume more development responsibility—but you can seek support from the open-source development community. Taking a mixed approach, you choose a commercial software package and employ open-source plug-ins or opt for versions of open-source software maintained and supported by a commercial software vendor. Several companies, for example, offer commercial versions of the open-source Linux operating system.

You also want to make sure that the vendor of your target processor supports open-source software. One such vendor is Texas Instruments, which supports the mainline Linux kernel and the kernel.org community organization. TI incorporates kernel.org’s most recent, stable kernels into the software development kits (SDKs) that support its Arm-based embedded processors.

TI provides new features and functionality as well as TI’s bug fixes to the kernel.org community so that these improvements can be incorporated into mainline Linux. In turn, TI fully evaluates, documents, tests, and productizes SDKs utilizing mainline Linux kernels for its major processors.

Due to the constant evolution of open-source projects, developers often face the dilemma of when to upgrade to a more recent Linux kernel version. The benefits of new features, functionality, and bug fixes incorporated in the new kernel must be weighed against the costs of migration, which include unexpected effects that can require considerable time and effort to overcome.

For example, discarding a patch during the migration process may have ramifications throughout the software environment, and changes during migration can make maintaining continuity in the codebase difficult—thereby potentially compromising a software engineering team’s previous development investment. TI looks to reduce the cost of migrations by allowing users to take advantage of a new kernel version’s advantages. Its support ensures an efficient development environment and avoids the disruption and distraction that can accompany a migration to a new kernel, enabling orderly migration when necessary.

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