nRFgo Studio won't recognize my nRF52 board and Keil uVision JLink error

[rugarcia]

Hi,

I have an nRF52 dev board (PCA10040). I have been using this board for measuring current. I am using the Keil tools.

Yesterday I made a change to main.c in the "ble_app_hrs" example (SDK 0.92). I was able to flash my application last night. Today I am having problems. Refer to symptoms below:

1. I can build the application code using Keil but when I try and flash the code I get JLink - Cortex-M Error No Cortex-M SW Device-Found. uVision Error: Flash Download failed- Target DLL has been cancelled.

2. When I run nRFgo Studio and select the nRF52 development board I get a "No device detected". I also have an nRF51 development dongle and using nRFgo I can see the device without any problems. I am only plugging in one nRF device at a time to avoid any sort of conflicts.

Thanks,

Rudy

[MartinBL]

Hi. Can you please try this with this .bin-file? Also make sure that you have the latest Segger J-Link drivers.