The embedded software of a power measurement card
Jäntti, Juha (2018)
2018
Information Technology
Tieto- ja sähkötekniikan tiedekunta - Faculty of Computing and Electrical Engineering
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Hyväksymispäivämäärä
2018-12-05
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:tty-201811122562
https://urn.fi/URN:NBN:fi:tty-201811122562
Tiivistelmä
Available commercial power measurement instruments and systems did not provide a solution meeting project requirement in terms of size, cost, performance, features and usability combination. Therefore, a new power and performance measurement card hardware that is tightly integrated with device under test and tailored for use with product enabling development boards was developed. The developed power measurement card is based on Atmel AVR32 microcontroller unit and a discrete analog front-end and is capable of measuring voltage and current of eight power rails and calculating average power. Measurement results are stored on a memory card or streamed to a PC measurement software via USB adapter.
Hardware design of the power measurement card and measurement accuracy characterization was done in collaboration with others and electronics design and results are briefly presented in this thesis. The embedded firmware of the power measurement card and a companion Java PC measurement application were developed as part of this thesis work. Accuracy and usability of the complete hardware and software solution met the project requirements. The developed power measurement card was successfully used to optimize power consumption of one product platform and enabled power measurements which otherwise would not have been practical to perform.
Hardware design of the power measurement card and measurement accuracy characterization was done in collaboration with others and electronics design and results are briefly presented in this thesis. The embedded firmware of the power measurement card and a companion Java PC measurement application were developed as part of this thesis work. Accuracy and usability of the complete hardware and software solution met the project requirements. The developed power measurement card was successfully used to optimize power consumption of one product platform and enabled power measurements which otherwise would not have been practical to perform.