The interface MCU on the nRF52 DK runs SEGGER J-Link Onboard (OB) interface firmware and is used to program and debug the firmware of the nRF52832 System on Chip (SoC).
Figure 1. Interface MCU
The interface MCU on the nRF52 DK runs SEGGER J-Link Onboard (OB) interface firmware and is used to program and debug the firmware of the nRF52832 System on Chip (SoC).