In this tutorial, we are going to discuss the linker script file and the role of the linker script file in the embedded systems building process. Unlike the native c program build process, the linker script of the embedded build process is different the way it assigns addresses to each section of the code and … Read more
In this tutorial, we will see the role of startup files in microcontrollers. Firstly, what is the startup file? and what exactly is the function of the startup file in bare-metal embedded systems? In the end, we will explore the startup file of ARM Cortex M4 microcontrollers and understand important sections of this file. Now … Read more
In this tutorial, we will see an introduction to the GNU toolchain for the embedded system build process. Firstly, we will see an introduction to the GNU toolchain and after that, we will discuss how to use the GNU toolchain to compile the ARM Cortex M4 microcontroller using the Linux command line without using any … Read more
In this tutorial, we will discuss about the booting sequence of a microcontroller. We will see what happens when a microcontroller resets and how microcontroller control transfers to the main function of appliation. Recommended Books Books that cover this topic in more depth. Book Why read it Buy on Amazon The Definitive Guide to ARM … Read more
In this tutorial, we will learn to use a simple transformer in proteus. Recommended Lab Equipment & Components Recommended lab equipment and components for building and testing the circuits you design in Proteus on real hardware. This is a general-purpose electronics bench setup plus reference books. Item How it’s used Buy on Amazon Electronic component … Read more
In this tutorial, we will learn to interface multiple 8×8 LED Matrix with pic microcontroller. MAX7219 will be used as a driver to control the LED matrix. As you know, to drive an 8×8 LED matrix consists of 16 pins and therefore, we need 16 GPIO pins of a pic microcontroller to drive a single … Read more
In this tutorial, we will learn to use Event groups. Events groups are also an important feature that is provided by FreeRTOS. Firstly, we will see an Introduction to Events groups that shows how and where to use it. After that, we will see a demo example with Arduino. Recommended Components The following are recommended … Read more
In this tutorial, we will learn to use FreeRTOS gatekeeper tasks API. We will see examples with Arduino. Gatekeeper tasks are used to implement mutual exclusion events without the risk of priority inversion and deadlocks. As we have discussed in previous tutorials, FreeRTOS mutex suffers from priority inversion and deadlocks problems. Although, we can resolve … Read more
In this tutorial, we will learn about the FreeRTOS scheduler. What type of scheduler FreeRTOS Kernel uses and how to configure it with different scheduling policy. First, we will define the term scheduler and how scheduling policy selects tasks from all available tasks which are in a ready state. Recommended Components The following are recommended … Read more
In this tutorial, you will learn how interrupt management works with FreeRTOS. In other words, you will learn to manage interrupts with the FreeRTOS kernel. Real-time operating systems, each application consists of several tasks. These tasks can be periodic, aperiodic, and sporadic in nature. But along these some tasks execute only whenever an interrupt occurs. … Read more