Custom board nrf52832 qfab

[vam5104]

Hi,

I have connected my custom pcb to the development kit at pin 19. When i use jlink commander, the board is detected properly. I use nrfjprog to dump the softdevice(Using s132 2.0.0).It runs fine. However, i cannot detect my custom pcb on the laptop like i detect my nrf52DK. I have to connect the custom pcb to my dk to run the code. However, i do not want to do that. I want the custom pcb to run on its own. I have verified the voltage throughout the board and it is 3.3V throughout. Please suggest me how to go about it.

Thanks in advance.

[haakonsh]

Hey Seshasai,

I do not understand what you mean by:

"However, i cannot detect my custom pcb on the laptop like i detect my nrf52DK. I have to connect the custom pcb to my dk to run the code. "

Do you mind sharing some more details on how you have connected your custom board to you computer, and what you mean by "detect"?

Cheers,

Håkon.

[vam5104]

Whenever I connect my development kit, I can see it in deviceManager. When I connect my custom pcb using a debug pins and plug it to p19 of dk, I cannot see that my custom pcb is connected in any way. Also, I connect custom pcb to a laptop by usb cable. So what I was expecting is, when I load a firmware onto the nef52 dk, it will get dumped into the custom pcb via debug pins. But can I verify that my device is working? Also, I don’t want to use development kit but make the custom pcb work on its own.

hope this is clear 

[haakonsh]

1. Verify that SB9 is cut, it will disable the supply rail of the nRF52832 on the DK, and let the onboard J-Link debugger connect to a nRF52832 connected to P19.
2. I need you to connect the nRF52DK to your PC via USB, with your custom PCB connected to P19. Now open up a command prompt and type "nrfjprog -f nrf52 -e". This is the command used to connect to a nRF52 and erase the chip. Let me know what your results are afterwords.

What do you mean by: "Also, I connect custom pcb to a laptop by usb cable"? The nRF52832 does not have a USB interface.