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Nrf52 Custom Board not detected by nrfgo studio

RAJESHKUMAR C

Hi, I have been programming Nrf52 custom board using the J-Link in the nrf52Dk and Nrfgo studio. Accidentally gave download to J-link from SES, The chip in the nrf52 gets programmed, not the chip in custom nrf52.

Afterwards tried connecting to the custom Nrf52 board using J-link, the J-link itself resets.

Don't know what happened to my custom board?

Any Ideas regarding this, Did i brick the Chip in the Custom board?

My connections of J-link with External Board is

VDD---> VTG of P20 in DK board SWDIO--> SWDIO of external board SWDCLK-->SWDCLK of external Baord GND DETECT--> GND of external Board GND--> GND of external baord.

  • 0

    Hi,

    The Above problem is Solved. I simply tried the above mention once again the custom board starts working again.

    Now the problem is the when i connect the J-link with custom board and click connect to target in SES, the j-link LED goes OFF.

    But when using as Nrf52DK the J-link works fine.

    Is there any other method is there to program the custom board rather than using J-link in the NRF52DK.

  • 0 in reply to RAJESHKUMAR C

    Buy your own Segger JLink flasher :)

  • 0 in reply to RAJESHKUMAR C

    You will need a Segger J-Link to program your custom board (see link). I would say using the nrf52DK is one of the easiest options to program a custom board. Why do you want a different way to program the custom board if I may ask? If your current project is educational, you could consider getting a Segger J-Link EDU. But since you already have an nrf52DK, I would just use that instead.

  • 0 in reply to RAJESHKUMAR C

    Hi Bjørn Kvaale, I have 10 Numbers of the Nrf52Breakout Module for my development purpose, which comes with s132 2.0 Version Soft device.

    I had made small PCB to take pin-outs from the above mentioned board.I had created custom baord.h by referring the pca10040.h file and successfully build bsp program from examples. I used the bsp example to test the LED's and switches connected to the PCB. When I build the ble_app_blinky with custom baord.h compiler doesn't shows any warning. But when i upload it, the program is not running

    I am using Segger Embedded Studio 3.30 for building programs , Nrf52Dk J-link as programmer and nRFgo Studio for Uploading programs.

  • 0 in reply to RAJESHKUMAR C

    Hi Bjorn,

    Got all the boards detected by the J-link in the Nrf52dk. The reason for not working is that i powered the external custom board using the CR2032 coin cell. When i powered it up by separate 3.3V source all the boards are working well.Yet to test Bluetooth Functionalities of the boards. Thanks for your suggestions.

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