nrf52382 firmware program lose

RE: nrf52382 firmware program lose

Jørgen Holmefjord — Wed, 16 Sep 2020 19:24:22 GMT

If reprogramming the application solves the issue, it sounds like there could be something in the application that causes this, possibly an error code or similar that puts the device in an endless loop. If you debugged the application, you should have been able to check this.

Are you doing some flashwrites or similar operations in the application, which can cause errors after a certain amount of time?

RE: nrf52382 firmware program lose

lulu — Wed, 16 Sep 2020 01:04:33 GMT

Yes, reprogramming the IC. After reprogramming, the circuit board works normally. Does it mean that the circuit board has no problem? Test before programming, unable to connect to JLINK. If it is a crash, there should be watchdog reset

RE: nrf52382 firmware program lose

Jørgen Holmefjord — Tue, 15 Sep 2020 12:30:57 GMT

Not sure I understand you correctly,

[quote user="lukgeeker"]and there was no power when it was found out[/quote]

Did you power off the board yourself, or did it power off by itself? Did a power cycle resolve the issue?

[quote user="lukgeeker"]Find the board, re brush the program, run well[/quote]

By re brush, do you mean that you programmed the application again? I assume that the board was powered and working correctly at this point ? Apart from the application possibly?

Did you debug the application before re-flashing, to see if there was any error codes reported, etc?

RE: nrf52382 firmware program lose

lulu — Thu, 10 Sep 2020 11:37:33 GMT

Find the board, re brush the program, run well

RE: nrf52382 firmware program lose

Jørgen Holmefjord — Thu, 10 Sep 2020 11:36:07 GMT

Sounds like it could be a board-issue then. If the chip does not get power, it will not do anything useful.

Did you manage to recover the failing boards? If so, how did you do that?

Have you examined the failing boards closely, to make sure there is no shorts, etc.?

RE: nrf52382 firmware program lose

lulu — Thu, 10 Sep 2020 11:32:27 GMT

It was encountered on the customized board; it took a long time to place, and there was no power when it was found out; the code modification was relatively large, and 0.1% of the boards had this problem, with more than 20 boards.

RE: nrf52382 firmware program lose

Jørgen Holmefjord — Thu, 10 Sep 2020 11:22:53 GMT

Are you experiencing this on a DK or a custom board?
If running on a DK, is LED5 on/blinking?
How is the board powered?
Have you measured that the voltage is correct when you experience this issue?
Which FW are you running on the board? Did you make any modifications?
Are you seeing this on a single board, or on multiple boards?
Can the problem be recreated consistently?

RE: nrf52382 firmware program lose

lulu — Thu, 10 Sep 2020 09:56:48 GMT

Yes, there's no reaction at all. I can't connect

RE: nrf52382 firmware program lose

awneil — Thu, 10 Sep 2020 08:43:38 GMT

But did you make sure that it re-starts ?

Again, you have a JLink - use it to debug your code !

RE: nrf52382 firmware program lose

lulu — Thu, 10 Sep 2020 08:33:46 GMT

We removed the sleep part

RE: nrf52382 firmware program lose

awneil — Thu, 10 Sep 2020 08:31:30 GMT

But that doesn't mean it's not running - just that the advertising is not working, or not being seen.

Again, what debugging have you done to find out what's happening?

Note that most of the Nordic SDK example do stop advertising and go to sleep after a while (a couple of minutes) - by design.

RE: nrf52382 firmware program lose

lulu — Thu, 10 Sep 2020 08:24:15 GMT

[quote userid="6462" url="~/f/nordic-q-a/65780/nrf52382-firmware-program-lose/268870"][/quote]

It is found that it is not running

How, exactly, do you determine that?

As you have a JLink, have you used it to debug your code & see what's happening?

Have you tried adding UART or RTT output to see what's happening?

etc, etc, ...

Under normal operation, there is broadcast, which can be searched with NRF connect tool. However, the board in question can not be searched.

RE: nrf52382 firmware program lose

awneil — Thu, 10 Sep 2020 08:08:04 GMT

[quote userid="66764" url="~/f/nordic-q-a/65780/nrf52382-firmware-program-lose"]It is found that it is not running[/quote]

How, exactly, do you determine that?

As you have a JLink, have you used it to debug your code & see what's happening?

Have you tried adding UART or RTT output to see what's happening?

etc, etc, ...