Nordic Semiconductor Asa · OSL:NOD

Nordic Semiconductor Asa — Technical Presentation (December 2020)

23 slides from Nordic Semiconductor Asa's technical presentation, December 2020

1. Slide 1: Become an expert on power profiling your application

   Become an expert on power profiling your application Nordic Tech Webinar Christian Wilgaard / Senior R&D Engineer Pål Kastnes / Technical Marketing Manager December 2020

2. Slide 2: Today's hosts

   © Nordic Semiconductor Today’s hosts Christian Wilgaard Pål Kastnes Senior R&D Engineer Technical Marketing Manager Application Group Product Marketing Team

3. Slide 3: Practicalities

   © Nordic Semiconductor Practicalities  Duration: about 60 minutes  Questions are encouraged!  Please type questions in the top of the right sidebar  All questions are anonymous  Try to keep them relevant to the topic  We will answer towards the end  The chat is not anonymous, and do not use f

4. Slide 4: Have you ever asked yourself?

   © Nordic Semiconductor Have you ever asked yourself?  How much power does my application actually use?  How do I reduce the power consumption of my application?  How do I extend battery lifetime without sacrificing the functionality of my application?  What tools do I need to power optimize my p

5. Slide 5: Agenda

   © Nordic Semiconductor Agenda  Reasons why your application might consume more power than intended, and how to measure it  Recommendation of tools to use for power optimization of products  Introduction to our latest release Power Profiler Kit II  PPK2 demonstration  Questions and answers

6. Slide 6: Possible reasons

   © Nordic Semiconductor Possible reasons  Not going to sleep  Logging enabled  RTT (Logging over debug port)  UART  Premature wakeup  SoC peripherals running when not needed

7. Slide 7: Important to think about

   © Nordic Semiconductor Important to think about  Sensors  Enable only wheen needed  Power  Select carefully  Pulldowns  Large, but not too large.

8. Slide 8: Tools

   © Nordic Semiconductor Tools  Debugger  Logic analyzer  Multimeter  Oscilloscope  Power Analyzer  Power Profiler Kit  Power Profiler Kit II

9. Slide 9: Debugger

   © Nordic Semiconductor Debugger  Pros  Analyze what is happening in your code  Set break points at events of interest  TRACE  Cons  During development

10. Slide 10: Logic analyzer

    © Nordic Semiconductor Logic analyzer  Pros  Read digital lines to measure the timing of your application  Cons  Not for production  Price  No current consumption information

11. Slide 11: Multimeter

    © Nordic Semiconductor Multimeter  Pros  Easy to use  Can be used for final product measurements  Cons  Low resolution  Low detail  Instantanious measurement

12. Slide 12: Oscilloscope

    © Nordic Semiconductor Oscilloscope  Pros  Can be used for final product  Good accuracy for both timing and current  Cons  Measuring voltage drop over a given resistor values  Accuracy drops with larger timescale.  Expensive

13. Slide 13: Power Analyzer

    © Nordic Semiconductor Power Analyzer  Pros  Very accurate for both timing and current consumption measurements  Cons  Expensive  Large and heavy

14. Slide 14: Power Profiler Kit

    © Nordic Semiconductor Power Profiler Kit  Pros  Tailored for low power devices  Affordable  Tiny  Dynamic range switching  Cons  Up to ~70mA  Low bandwidth  Needs external debugger

15. Slide 15: Power Profiler Kit II

    Power Profiler Kit II Power Profiling tool for embedded development

16. Slide 16: Power Profiler Kit II

    © Nordic Semiconductor Power Profiler Kit II  High measurement range  Measure and analyze any embedded HW, including all Nordic DKs.  Supported by a Power Profiler app in nRF Connect for Desktop  Kit content  One PPK2  4-pin current measurement cable  10-pin logic port cable

17. Slide 17: Power Profiler Kit II – logic port

    © Nordic Semiconductor Power Profiler Kit II – logic port  8 digital inputs for low-end logic analyzer support  Connect I/O pin(s) on DUT to digital input(s)

18. Slide 18: Power Profiler Kit II - highlights

    © Nordic Semiconductor Power Profiler Kit II - highlights  Max 1A current measurement range  200nA to 1A current range with resolution varying between 100nA and 1mA  Supports cellular nRF9160 DK  10x faster sampling than first generation PPK  Ampere meter mode  Source mode  DUT powered via PP

19. Slide 19: Online Power Profiler Tool

    © Nordic Semiconductor Online Power Profiler Tool  Complemented by Online Power Profiler for nRF52 and nRF91 Series  Possible to export LTE settings, import settings into an nRF9160 UDP example, build and flash to an nRF9160 DK and then measure actual current via PPK2  Useful to see if you are ac

20. Slide 20: Why do developers need this?

    © Nordic Semiconductor Why do developers need this?  Useful tool to track power consumption  Non-intrusive to final product  Detailed data to estimate power consumption and battery life  Spot and debug unwanted current drain during entire engineering cycle  Simple and cost-efficient ($89 retail

21. Slide 21: Demonstration

    © Nordic Semiconductor Demonstration  Using PPK2 in ampere meter mode  nRF9160-DK  Running asset tracker example  nRF52840-DK  Running beacon examples  PWM driver example with digital pins

22. Slide 22: Q&A session

    Q&A session Q&A

23. Slide 23: Register for upcoming Nordic Tech Webinars

    Register for upcoming Nordic Tech Webinars www.nordicsemi.com/webinars

Nordic Semiconductor — Technical Presentation (December 2020) on 6ix