Difference between "press a reset button" and "nrfjprog -f NRF52 -r "

[Mich]

Hello,

I ported nordic heart rate example to nuttx. I have peer_manager_init() in my codes. After programming the device, I can connect and bond when I issue "nrfjprog -f NRF52 -r". However, if I press a reset button, it'll have a hardfault error. Without peer_manager_init(), both work fine. Could you please let me know what's the difference between "press a reset button" and "nrfjprog -f NRF52 -r"

Thanks, Mich

[Hung Bui]

Hi Mich,

nrfjprog -r will trigger a softreset via (SysResetReq). if you type "nrfjprog" you can find the description of nrfjprog -r

The pin reset is the physical pin reset. You can find the difference between different reset source at section 18.8 in the nRF52832 Product Spec.

We don't have much experience with nuttx to help you on why you get the hardfault error. You may want to trace back using the stack handler.

[Mich]

Thanks, Hung Bui. Your information is very useful. I'll do more research and debug