In our article covering the scheduling algorithms of real-time operating systems (RTOS), we stated that they can run tasks in such a way that leaves the impression of a multitasking behavior. This is achieved by giving the RTOS the capability to interrupt a currently executing task and to start executing another one. At some point
We already introduced the basic concepts of real-time operating systems (RTOS) and now we will take a deeper look into one of the most important things when designing an embedded system using an RTOS - the scheduling of the tasks and the algorithms that are used. Scheduling Process Scheduling is the process of deciding which
Embedded systems are microcontroller-based systems that are designed to perform specific functions such as reading sensor data, responding to external events, communicating with other systems, controlling processes, etc. The tricky part is to make the distinction of what exactly qualifies such a system as real-time. Aren't all embedded systems operating in real-time? In order for
In the context of programming, there are many different definitions of what a function is, but in general, we can say that a function is a named piece of code that performs a specific task. Functions may have different names (e.g methods, subroutines, etc.) in some languages. The function itself is just a regular code,
In the first post of this series, we covered the basic ideas behind creating an STM32 bootloader. Today we will focus on the application code and generate output, that our bootloader code will be able to process. The application code is very simple - it initializes one pin as output and toggles it after some
We already learned what a bootloader is and why it is needed in this article. Today we will start developing our own bootloader. For this particular example, we will be using STM32F411 discovery board and FT2232H mini module. The project is based on ARM Keil MDK. Before we start coding, here is some theory. The
