Resetting device

[SC97]

Hello,

I am using nrf52840 dk and I want to reset my device. I have pressed the sw5 which is the reset button but nothing is happening. Could someone help me with this.

Thanks

[Simonr]

Hi

What firmware are you running on your DK, is it one of our example projects? If so, you should be able to open a terminal like PuTTY or similar in order to see the log. Please open a terminal and see what is printed when you press the reset button, as it's hard to see by looking at the DK physically that it resets. This goes very fast. 

Note that a reset just turns the board off and on and will not erase the firmware on the chip if that's what you want to do.

Best regards,

Simon

[SC97]

Hi Simonr,

Thanks for the quick reply. I actually wanted to delete the firmware, I thought reset button was supposed to do that.

What should I do to erase it?

[Simonr]

Hi

In order to erase the firmware on your DK, you can, for example, download the nRFConnect for Desktop Programmer app, where you can connect it to the PC and erase, read and write your flash memory with a handy graphic showing you where what is located. 

You can also use the nRF command-line tool to do this using the nrfjprog -e command.

Best regards,

Simon

[SC97]

Thanks. It worked.