Timers wont work after time

RE: Timers wont work after time

Inspectron — Wed, 14 Dec 2016 14:02:05 GMT

I have the hardware now in the office. And its working now again. I will let it work for a few days, and then check if this will occur again.

RE: Timers wont work after time

Inspectron — Wed, 14 Dec 2016 09:09:55 GMT

I can debbug and update the software trough team viewer. But I cant change the Hardware. Its far away from my office. I assume, that when the break point hits on this place, then the clock works normally

RE: Timers wont work after time

Hung Bui — Wed, 14 Dec 2016 08:57:17 GMT

If you can't change the firmware how did you change the CLOCK_CONFIG_LF_SRC -> NRF_CLOCK_LFCLK_RC ? I would suggest you to get hold of a board and try to flash the RTC example to test, this helps narrow down the issue.

Could you explain this a little bit more "And the break point will halt on lfclk_start();. So this should be okei." ?

RE: Timers wont work after time

Inspectron — Tue, 13 Dec 2016 14:42:42 GMT

I checked now the clock with the debugger. And the break point will halt on lfclk_start();. So this should be okei.

RE: Timers wont work after time

Inspectron — Tue, 13 Dec 2016 14:35:30 GMT

Now is CLOCK_CONFIG_LF_SRC -> NRF_CLOCK_LFCLK_RC defined and the timers stil wont get into the handler. I cant load other programs on the chip, because the board is at the costumer.

RE: Timers wont work after time

Hung Bui — Tue, 13 Dec 2016 07:55:44 GMT

I actually don't really know, but if you try again with the source set to RC and test with the SDK example how would it behave ?

RE: Timers wont work after time

Inspectron — Mon, 12 Dec 2016 14:46:50 GMT

I didnt changed the CLOCK_CONFIG_LF_SRC. But if this is the error, why it will work on new modules for few days and then later it wont anymore?

RE: Timers wont work after time

Hung Bui — Mon, 12 Dec 2016 14:15:58 GMT

Have you updated CLOCK_CONFIG_LF_SRC to match with your configuration (0 => RC) ?

If you test with the rtc example in the SDK do you see the LED blinking (with modification to match LED pin on your board) ?

RE: Timers wont work after time

Inspectron — Mon, 12 Dec 2016 12:40:20 GMT

Hi Mr. Bui, No, I dont use a external 32kHz on my board. And I debugged the timers and clock initialization when this problem occurs, both will return a success.

RE: Timers wont work after time

Hung Bui — Mon, 12 Dec 2016 12:30:39 GMT

Hi Inspectron,

What do you have in lfclk_request() ? Do you use external 32kHz crystal in your board ? I suspect there could be problem with the crystal or the tracks. You can try to use the 32kHz RC instead, just to verify.

RE: Timers wont work after time

Inspectron — Sat, 10 Dec 2016 15:27:44 GMT

Yes, we have several modules. And we are able to flash them more than once. I developed the project on this modules. But after a few days when the modules are running, then the Timers stop. I tried all to get the modules work again. Software reset, power on off, erase all and flash again. But nothing solved the problem. I use this Timer function for all my projects, and I never had a problem like this.

RE: Timers wont work after time

butch — Fri, 09 Dec 2016 22:29:29 GMT

Please clarify. Do you mean that you have many modules, and once you flash a module, it works for a while and never works again, even after flashing new software into it? And that you have to discard it and plug in a new module? Don't some chips have security built in so that it can only be flashed once, so maybe your second flash is not really doing anything? Also, you don't say whether a module works after it seems to stop working and then you reset the module (cycling power to it)?