nRF9160DK high fluctuation and inconsistent boot time

RE: nRF9160DK high fluctuation and inconsistent boot time

Martin Lesund — Tue, 27 Aug 2019 09:00:46 GMT

Hi Raymond,

The "Secure Partition Manager" (before known as "secure_boot") is documented here.

First the SPM runs then your application runs.

For more details for the NCS please check the tutorial.

Best regards,

Martin L.

RE: nRF9160DK high fluctuation and inconsistent boot time

raymond.zhang — Mon, 26 Aug 2019 20:27:38 GMT

Hi Martin,

I will try to do a test on that. One thing I would like to clarify is the secure boot portion of the code. Can you or anyone confirm where is the start and end of the execution of the secure boot code? That is essentially what i want to measure.

Thanks,

Raymond

RE: nRF9160DK high fluctuation and inconsistent boot time

Martin Lesund — Mon, 26 Aug 2019 09:22:31 GMT

Hi Raymond,
To get a more viable test result I would highly recommend doing the tests with the newest firmware, both the modem firmware and application version since this can have an effect on the result.

Please follow the directions in this blog on how to upgrade.