Why is C language suitable for system call?

C is highly portable and is used for scripting system applications which form a major part of Windows, UNIX, and Linux operating system. C language has a rich library which provides a number of built-in functions. It also offers dynamic memory allocation.

Is Embedded C different than C?

C is generally used for desktop computers, while embedded C is for microcontroller based applications. C can use the resources of a desktop PC like memory, OS, etc. While, embedded C has to use with the limited resources, such as RAM, ROM, I/Os on an embedded processor.

How difficult is Embedded C?

Assuming that you are smart enough to understand technical terms related to this domain and have the patience to give the thing its own sweet time, HARD WORK is just about enough to learn Embedded C. There are very good books and great help available on forums and websites.

What features of C++ are not predictable in embedded systems programming?

We’re dealing with device drivers/hardware device APIs. Following features of C++ language are not predictable: Static memory poses no special problem in embedded systems programming since all is taken care of before the program starts to run and long before a system is deployed.

What is a hard real time operating system?

In Hard Real Time Operating Systems the deadline and the time duration to execute tasks are specified. It is necessary for a system to respond within the time line specified else might result in disastrous consequences. Example: Medical critical care systems, Aircraft systems, etc.

Does Linux support realtime applications?

Realtime variants of Linux have been created, and recent Linux kernels are moving toward full native support for realtime applications. An RTOS is an operating system designed to meet strict deadlines which associated with tasks. In RTOS, therefore, missing the deadline can cause undesired or even catastrophic outcome.

Why do we need domain knowledge in embedded systems programming?

For example, a linear search of a list is an unpredictable operation because its number of elements is unknown. Concurrency. So, when we do embedded systems programming, we should be aware of the environment and its use. In other words, domain knowledge is essential for designing and implementing a system with a good protection against errors.