firmware was not uploading into nRF9160 custom board

RE: firmware was not uploading into nRF9160 custom board

Kenneth — Fri, 26 May 2023 16:19:46 GMT

Very likely EOS damage.

Kenneth

RE: firmware was not uploading into nRF9160 custom board

_bhanu — Fri, 26 May 2023 10:41:42 GMT

Hi,

if i change the nRF9160 is their any possibility that it will work as normal?

what are causes that nRF9160 damage.

Thanks

RE: firmware was not uploading into nRF9160 custom board

Kenneth — Thu, 25 May 2023 07:13:52 GMT

I suspect you have damaged the chip, considering the absolute maximum ratings says that the I/O pin voltage must maximum be <VDD_GPIO+0.3V, and since VDD_GPIO have been 0V, then I/O voltage should not have exceed 0.3V.

https://infocenter.nordicsemi.com/topic/ps_nrf9160/abs_max_ratings.html

RE: firmware was not uploading into nRF9160 custom board

_bhanu — Thu, 25 May 2023 04:27:28 GMT

Hi,

[quote userid="2111" url="~/f/nordic-q-a/99805/firmware-was-not-uploading-into-nrf9160-custom-board/427104"]lso check other components, it could be that you are missing other components.[/quote]

We cross checked the entire PCB board every components are placed correctly. may be the nRF9160 have been damaged.

Thanks

RE: firmware was not uploading into nRF9160 custom board

Kenneth — Wed, 24 May 2023 07:37:48 GMT

It could be that the nRF9160 have been damaged in the process, do you have other boards to test? Also check other components, it could be that you are missing other components.

Kenneth

RE: firmware was not uploading into nRF9160 custom board

_bhanu — Tue, 23 May 2023 13:12:27 GMT

Hi,

[quote userid="2111" url="~/f/nordic-q-a/99805/firmware-was-not-uploading-into-nrf9160-custom-board/426775"]The VDD_GPIO is an external supply to the nRF9160, it's not generated by the nRF9160. Have you looked at the circuitry that should generate this voltage?[/quote]

Thanks. before i didn't noticed that their is one resister removed so it shoes 0V.

But after that is i have added Resister 0ohm and im getting 3.3V but still im not able to uplaod the firmware.

RE: firmware was not uploading into nRF9160 custom board

Kenneth — Tue, 23 May 2023 08:01:17 GMT

The VDD_GPIO is an external supply to the nRF9160, it's not generated by the nRF9160. Have you looked at the circuitry that should generate this voltage?

Kenneth

RE: firmware was not uploading into nRF9160 custom board

_bhanu — Tue, 23 May 2023 05:20:59 GMT

Hi,

[quote userid="2111" url="~/f/nordic-q-a/99805/firmware-was-not-uploading-into-nrf9160-custom-board/426453"]If you have a working and failing board it could be interesting to compare for instance VDD_GPIO and other voltages on the board for differences, [/quote]

Yes i have cross verified the working and failing bord VDD_GPIO in working board I'm getting 3.3V but failing board I'm getting 0V.

RE: firmware was not uploading into nRF9160 custom board

Kenneth — Mon, 22 May 2023 07:53:51 GMT

Hello,

If you have a working and failing board it could be interesting to compare for instance VDD_GPIO and other voltages on the board for differences, are you able to do that?

Kenneth

RE: firmware was not uploading into nRF9160 custom board

_bhanu — Wed, 17 May 2023 04:22:40 GMT

Hi,

[quote userid="2111" url="~/f/nordic-q-a/99805/firmware-was-not-uploading-into-nrf9160-custom-board/425881"]Have the design changed?[/quote]

No design haven't changed and i have tried with nRF desktop programmer too but no use still i,m facing same. And i'm not getting 2.1V throughout RESET.

I their any change that the assembly issue is also cause for this problem

Thank you

RE: firmware was not uploading into nRF9160 custom board

Kenneth — Tue, 16 May 2023 13:29:51 GMT

Hello,

All GPIOS (including SWD pins) should match VDD_GPIO voltage:
https://infocenter.nordicsemi.com/topic/ps_nrf9160/recommended_op_conditions.html
https://infocenter.nordicsemi.com/topic/ps_nrf9160/pmu_regulators.html#normal

Also, check what programmer are you using here? Have you tried a different programmer? Have the design changed?

Best regards,
Kenneth