Keil doesnt stop on softreset/watchdog

RE: Keil doesnt stop on softreset/watchdog

Einar Thorsrud — Thu, 10 Jun 2021 12:11:00 GMT

That is not unsurprising, but it is always good to rule out some things. So seemingly everything is OK, but you no longer get RTT logging? Can you share the parts of your code that initialize and process logs, and the logging related part of your sdk_config.h?

RE: Keil doesnt stop on softreset/watchdog

Sergy — Thu, 10 Jun 2021 12:04:36 GMT

Einar, there is something else going on actually. Im now running it without Keil and just with RTT printouts. At some point printout stops, but I know device isnt hanging because I still can connect to it via BLE NRF Connect. Somehow RTT hangs and if I reconnect printouts dont resume.

RE: Keil doesnt stop on softreset/watchdog

Einar Thorsrud — Thu, 10 Jun 2021 11:29:42 GMT

The register is cumulative, so you need to clear it after reading it. If not you cannot know which bit apply to the latest reset. See doc. Also, make sure to consider erratum 136.

RE: Keil doesnt stop on softreset/watchdog

Sergy — Thu, 10 Jun 2021 11:24:07 GMT

Hi Einar, RESETREAS is set to 6, is that a valid situation to have both soft reset and watchdog at the same time?

RE: Keil doesnt stop on softreset/watchdog

Einar Thorsrud — Thu, 10 Jun 2021 11:20:34 GMT

Hi,

I am not sure what is going on, but with DEBUG defined you will catch any APP_ERROR_CHECK's that detect an error. It does not mean that any and all errors will be detected by this approach, though. There is no generic way to make the debugger halt on any error as an error could be anything.

If the thing is that you want to detect if a reset is caused by a watchdog or a soft reset, then you can either disable the watchdog to rule that out, or check the RESETREAS register. If you want to know if a soft reset occurs, then you can set a breakpoint on all calls to NVIC_SystemReset().

RE: Keil doesnt stop on softreset/watchdog

Sergy — Thu, 10 Jun 2021 10:25:03 GMT

have a breakpoint at the start of main and it does stop at this breakpoint at start. but when it hangs id expect it to be stopped by DEBUG defines and it doesnt.

RE: Keil doesnt stop on softreset/watchdog

awneil — Thu, 10 Jun 2021 10:21:18 GMT

[quote userid="2294" url="~/f/nordic-q-a/76221/keil-doesnt-stop-on-softreset-watchdog"]Any idea how I can make it halt ?[/quote]

Put a breakpoint at the start of main() ?