Embedded Programming

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ITDev is expert at developing embedded software and firmware for a range of operating systems, microprocessors and microcontrollers.

We are frequently contracted to implement complex algorithms on embedded targets with strict criteria for performance and timing.

Limited System Resources

Embedded systems are often characterised by limited memory and CPU performance, and may have a requirement for low power consumption. We use various techniques to develop high quality code efficiently in these situations, including:

  • Identifying and removing bottlenecks with performance analysis and tracing tools.
  • Using low-level languages such as C or assembler for greater control over resource usage.
  • Developing unit tests to quickly verify software modules on higher performance machines.
  • Tuning code for low memory usage and looking for memory leaks using tools such as Valgrind.
  • Preventing memory leakage by using static allocation if necessary (for example in a safety critical application).

Time-Critical Systems

We use timing diagrams and state-transition diagrams to document the timing requirements for applications where precise timing is essential. We can recommend an operating system or microkernel for the project based on this analysis. For real-time applications this might be a Real-Time Operating System (RTOS). We can architect the system, and develop the software code and the related test harnesses to achieve the required timings and performance.

Typical Platforms

  • ARM, MIPS, Motorola, ST, TI, Microchip...
  • Arduino
  • Xilinx MicroBlaze (Softcore Processor)
  • Xilinx and Altera FPGA (see Electronics Overview)

Typical Operating Systems

  • Embedded Linux
  • Android
  • FreeRTOS
  • μC/OS

Latest Blog Posts

Image for Time Server blog
Posted 11th January 2019, By James H
Making a Stratum 1 Linux Time Server: Part 3 We have found out in the previous two parts of this series why distributed devices might need a method to ...more
Posted 14th December 2018, By James H
In the previous article we saw that getting distributed devices to agree on the current time is hard. This article, the second in a series of three, will ...more
Posted 4th December 2018, By James H
Generally distributed devices will need to agree on time in order to effectively coordinate tasks but getting everyone to tell the same time is challenging! ...more
ITDev internship image
Posted 14th November 2018, By Orianne T
As a company, ITDev invests in the future of engineering by offering summer internships to undergraduates. Matthew wanted to share some advice to other ...more

Latest News

Posted 15th February 2019
Following our company tradition, we recently donated the proceeds from our staff-run tuck shop to our nominated charity, Winchester Churches Nightshelter.
Posted 23rd January 2019
Following on from ITDev's growth in 2018, we are delighted to announce that we have welcomed a further 2 new starters to the team: Simon and Quentin. With ...more
Raising a toast to Matt and Steve for 10 year anniversary
Posted 7th January 2019
As a values driven consultancy, our beliefs and attitudes are firmly embedded in our culture and we're proud that our staff demonstrate these values, creating ...more