Top 6 Steps for Successful Embedded Systems Design

Definition of Embedded systems – An embedded system is a microcontroller-based system of software and hardware designed to perform specific functions within a larger electrical or mechanical system.

What is an Embedded System?

An embedded system is a microprocessor with a software and hardware system which is designed to perform a specific function, either as a part of a large system or as an independent system. An embedded system is an integrated circuit that is designed to perform computation for any operation.

What is Embedded Systems Design?

Embedded systems are all about electronic products which are based on microcontrollers. They include Input/Output peripherals, communications, memories and possess computational logic that is used for specific purposes. There are many examples of embedded systems such as intelligent appliances, security access systems, smartphones, etc.

Embedded system design includes a process where firmware and hardware designers collaborate to build an embedded system. Building functional circuits involves PCB designing and its components. For the purpose of bringing electronics to life, the coding is done to the firmware and then programmed into the microcontrollers.

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Top 6 Steps for Successful Embedded Systems Design:

Analysis of Requirements – The first and vital stage in embedded system design is to collect and analyze the requirements of the product and list them into specifications. It is vital to focus on every single requirement from your respective client or manager.

Schematic – The hardware designers can commence building the schematic after understanding the complete requirements and translating those into specifications. At this crucial stage, it is a challenge for the design team to choose the right microcontroller and other related components for the circuit. The heart of the embedded system is known as the microcontroller, and many things such as peripherals, power consumption, memories, speed, and cost have to be considered before arriving at the final decisions.

Printed Circuit Board (PCB) – After the schematic process is completed the next vital task is to design the Printed Circuit Board for the embedded system. PCB design is a critical process and the designer needs to apply robust practices for manufacturability, functionality, and reliability. When working on a mixed-signal circuit or high-speed microcontroller,PCB design gets complicated. High-speed results in problems related to mixed-signal designs and electromagnetic interference (EMI) that require efficient noise-coupling mitigation, and ground separation measures.

Prototype – You will need to work on the prototypes, once the Printed Circuit Board (PCB) layout passes the Design Rule Checking (DRC) test which is free from error. It includes the time taken for developing any systems and testing them.

Firmware Development Embedded system design includes the hardware that is only part of the equation. At this stage, firmware designers bring the hardware to life by using code to make it work. Practically, any single misplaced line of code results in many hours of debugging, and overall developing firmware is still a time-consuming process.

Testing & Acceptance – An ideal embedded system design has to pass stringent tests before its design is approved for deployment or manufacturing. The Embedded system needs to pass the functionality test cases and the circuit must be well tested for reliability.

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