Trying to connect nrf52833 with BG95 via PPP and creating a socket to ping google.com

[pulkit]

I am trying to ping google.com using PPP connection using BG95 interfaced with nrf52833. I have used the gsm_modem sample code for PPP connection and when "Network connected" event occurs, creating a socket connection for http request. But when connect function is called it gives "Data Access Violation" error. In prj.conf file stack size configuration is "CONFIG_MAIN_STACK_SIZE=4096".

Here is the code file for the reference

kodiak-fw.zip

.

[AHaug]

Hi,

Could you increase your stack sizes? As the Error suggests in the image you attached, "Stack overflow on CPU 0" means that the stack size is too small. Try with 8192 or 16384 (whatever you can spare on the nRF52833).

I would also recommend that you have a look at this lesson in the intermediate course for some tips and tricks for debugging: https://academy.nordicsemi.com/courses/nrf-connect-sdk-intermediate/lessons/lesson-2-debugging/ 

Kind regards,
Andreas

[pulkit]

Even after increasing the size to 8192 and 16384, still the error is same.

[AHaug]

Noted, thank you for checking

Please attach your prj.conf as well as the device log and I'll have a look

Kind regards,
Andreas

[pulkit]

I am using this prj.conf file. I have also attached the project folder zip file "kodiak-fw.zip". You can check that also.

04162.prj.conf

Here are the device logs

[AHaug]

Thank you for providing this.

Can you follow the steps in the debugging lesson I sent you to trace back to which thread and which function calls it is that triggers the MPU fault? Another thought is that you're trying to access something that is outside of the legal memory address range (i.e physical access range).

Kind regards,
Andreas