Category Archives: Embedded Systems

We know that some embedded systems run on the embedded operating systems when there are more complex system and lot more resources that need to manage efficiently. Without an embedded operating system, we can not control the hardware easily. So we need some embedded operating system to control the overall machine. What is an Embedded Operating System? An embedded operating system is simply an operating system designed for embedded systems.  The main characteristics of the embedded operating system are resource efficiency and reliability. The existence of embedded operating system comes into existence because we have a very limited amount of hardware like RAM, ROM, timer-counters and other on-chip peripherals. So, in this case, we need some operating system that can manage all the hardware resource by leaving some unimportant features. Embedded systems generally have Real Time Operating System(RTOS) to perform the task in a given time frame. The hardware in the embedded systems depends on…

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What is Embedded Systems – You may have seen nowadays there are so many small gadgets are available around us. These gadgets are intelligent, they have some programming, some processing unit and more. They all come under the categories of embedded systems. But if you are finding the exact Definition of embedded systems then you will get lots of different views and you may be confused. Definition of Embedded Systems A microcontroller or microprocessor-based system with some hardware and software in it. This must perform the dedicated, single functioned or specific task. And can also be used to perform the time-critical task. The main key point to be an embedded system is it should perform a single task only. Like a digital wristwatch is always a wristwatch. It can’t change the functionality because the firmware inside is written to perform the timing related calculation. Even a use not having an option to change the…

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Types of Embedded Systems – Embedded systems can be classified based on the functionality and the performance. The embedded systems are classified into four segments according to their functionality and application area. Stand-alone embedded systems Real-time embedded systems Networked embedded systems Mobile embedded systems The embedded systems classified based on the performance and architecture. Small Scale Embedded System Medium Scale Embedded Systems Sophisticated or Complex Embedded Systems Stand Alone Embedded Systems The stand-alone embedded systems are less complex and simple. They independent to any system, work by their own. It takes user input and acts accordingly. The input is received by the respective I/O pins. The input may be in digital or in analog form. The MCU then process the input and make a decision and perform output like the display on LCD, driving motor or trigger an alarm. Examples: Microwave Oven, the digital wristwatch, mp3 player, doorbell, calculator etc. Real-Time Embedded Systems…

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Embedded Systems are everywhere but what are the components of embedded systems?. Embedded systems are amazing if we are into programming and making circuits, boards and robots. The embedded system’s components are basically divided into two parts: Hardware Components Software Components Embedded Systems Hardware Components As we know embedded systems are the combination of hardware and software. There are different hardware components like power supply, processor, memory, timers and counters that make the embedded hardware. Power Supply The power supply is an essential part of any embedded systems circuits. An embedded system may need a supply of 5 volts or if it is low power then maybe 3.3 or 1.8v. The supply may be provided with the help of battery or we can use any wall adapter. It will depend on the application need. The power supply circuit can be designed with the help some little knowledge of electronics. For…

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An embedded system is a small dedicated system made up of microcontroller or microprocessor. There are some common characteristics of embedded systems that are important to consider and make them different from the general purpose computer. Single Functioned The embedded systems in this category execute a single function or program only. This type of embedded systems are generally simple, low cost and less complex in nature. Examples are like a digital wristwatch, digital thermometer or printer etc. Tightly Constrained The embedded systems have some constrained like cost, size, performance and battery power. These constrained are set before the system design and may vary by the system to system. For a system, if the performance is a primary factor then it should be designed in such a way that performance is always achieved. Sometimes it is very difficult to design a system with some tight constrained and it becomes a design challenge.…

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