In the rapidly evolving field of technology, embedded software engineers are crucial for designing and implementing software that runs on embedded systems. These systems are integral to various applications, from consumer electronics to industrial automation. This article explores the essential skills required for an embedded software engineer to excel in this dynamic and challenging field.
Also read: What is an Embedded System? Complete Guide
Technical Skills
1. Programming Languages
C/C++: Proficiency in C an/or C++ is fundamental, as these languages are widely used for embedded software development due to their efficiency and control over hardware.
Assembly Language: Understanding assembly language helps in low-level programming and optimizing performance.
Python: Useful for scripting, testing, and prototyping embedded systems. If you are planning to get into tinyML(low footprint ML models that could be deployed on embedded systems) then you should get good programming capability in Python.
2. Microcontroller/Microprocessor Knowledge
Architecture Understanding: Deeper understanding of different microcontroller architectures (e.g. AVR, PIC, STM32, Sitara) and microprocessor architectures (e.g. ARM, RISC V) is crucial.
Peripheral and communication Interfaces: Programming experience of peripheral protocols like UART, SPI, I2C, TCP/IP is crucial. Good knowledge of different display interfaces (Seven Segment Display, LCD); input interfaces like touch, keypad; analog interfaces like ADC, DAC; other interfaces like GPIO and timers are essential as well. .
3. Embedded Software
Bare Metal programming: Many of the low end embedded systems don’t use any OS but have their custom firmware. The firmware may do limited tasks just enough for that system. This helps to keep the memory footprint low. At the same time low end microprocessors (like ARM M series) could be used as there is no need for a Memory Management Unit. All the semiconductor providers also need to validate their new or variant silicons. You need to have a good understanding of bare metal programming to carry out this task.
OS programming: Programming experience on operating systems like Linux is a must as most of the mid and high end systems run operating systems. Working knowledge of system calls in Linux becomes quite essential as this has to be used to connect any external interface or protocol. Linux and its flavors are the most popular in this space.
OS ports and drivers: Many of the semiconductor vendors are providing drivers and OS ports for their Microcontrollers. If you are going to work with any semiconductor vendor then
Coding practices: Good coding practice is quite essential to ensure that the code is organized well, modular, maintainable and has enough comments for someone else to understand easily.
4. Embedded Software Development Tools
IDE and tool chains: Proficiency in using Integrated Development Environments (IDEs) and tool chains specific to embedded systems is needed. Open source IDEs like Eclipse or vendor specific IDEs like code composer studio or MPLAB is essential. Many of the embedded systems need cross platform development and compilation. Understanding this is essential.
Debugging Tools: Skill in using debugging tools like JTAG, oscilloscopes, and logic analyzers. Good understanding of tools like gdb or kdb is essential for this work.
Also read: What are the Components of an Embedded System?
5. Hardware Knowledge
Circuit Design: Basic understanding of working of electronic circuit and reading of schematic is essential during the development and debugging.
PCB Design: Familiarity with PCB design tools and processes is required if you would like to contribute to the hardware design of the embedded system.
Soft Skills
1. Problem-Solving
Analytical Thinking: Ability to analyze complex problems and devise effective solutions.
Troubleshooting: Skill in diagnosing and fixing issues in both hardware and software.
2. Attention to Detail
Precision: Meticulousness in coding, testing, and documentation to ensure system reliability and performance. Understanding the documentations (specifications) well to make sure the implementation is comprehensive is essential to make sure no feature is missed.
3. Communication
Team work: Ability to work effectively with cross-functional teams, including hardware engineers, project managers, and other software developers.
Documentation: Skill in documenting designs, code, and processes clearly and comprehensively.
4. Adaptability
Learning Agility: Willingness and ability to quickly learn and adapt to new technologies, tools, and methodologies in the fast-paced embedded systems industry.
Also read: Characteristics of an Embedded System
Conclusion
To excel as an embedded software engineer, a combination of technical expertise and soft skills is essential. Mastery of programming languages, microcontroller knowledge, OS, development tools, and hardware understanding are foundational. Additionally, problem-solving abilities, attention to detail, communication skills, and adaptability are crucial for success in this dynamic and evolving field.
Looking to kickstart your career as an Embedded Systems Engineer? Stay tuned for our upcoming Embedded Systems Course, launching soon! Click here to learn more about the course offerings.