Keil not recognizing NRF52

[Sri_guy]

Hi,

I tried to program my NRF52 using the arduino IDE using the following instructions on github: github.com/.../arduino-nRF5

Soonafter, I realized I could not program my NRF52 DK with keil anymore. In the process of trying to figure it out, I reinstalled NRFgo and Keil MDK and the issue was still not resolved. I also tried reuploading the Jlink firmware through the NRF bootloader mode.

Note that neither Keil nor NRFgo do not seem to recognize the NRF52 on their menus.

Any ideas how to resolve this. Thank you.

[vea45]

I faced one similar problem with the nrf51 dongle, and I solved it reflashing the firmware of the Segger programmer: www.nordicsemi.com/.../37463179 I suppose that this is the process: "To upgrade, press the boot/reset button while powering on the board and copy over the latest bootloader."

[Sigurd]

Hi,

Try to remove the driver that Zadig replaced with the J-Link driver. Open Control Panel-> Devices and Printers. Find and open the nRF52-DK(J-link), and click on the Hardware tab. Identify the driver that have "Interface 2" in the name. Then go to Control Panel -> Device Manager, locate the driver in the "Universal Serial Bus controllers" -list and uninstall it. Plug out the nRF52-DK from the computer, and plug it back in again.