Firmware update question

[rtakaki]

Hi all,

Is there a way to change the UART pins configuration to bypass the segger jlink debugger on the nRF51/52 devices? I would like NOT to use this debugger chip for budget device strategy.

Thanks in advance and best regards.

[Matt]

Don't understand your question here: segger jlink connects to the SWD and SWDCLK pins and not the uart tx/rx pins, so what exactly is this bypass business about?

[Matt]

The nRF52 SoC does not include the JLink OB. You must be thinking about the PCA10040 DK which is nRF52 + mBed with JLink OB. To load the softdevice into the nRF52 you need to expose the SWD and SWDCLK pins in your custom board so that you can connect your own Segger JLink flasher to it; or investigate using a bootloader so that you can perform OTA device firmware upgrade later on.