Nordic Semiconductor nRF9160, Руководство пользователя, Страница: 28 / 48

Hardware description
Figure 22: Debug input connector and trace footprint
To utilize the SW trace feature on nRF9160, a footprint for a 20-pin connector is available ( P25 ). If trace
functionality is required, a 2×10 pin 1.27 mm pitch surface mount connector can be mounted. nRF9160
GPIO s used for the trace interface will not be available for application firmware use during trace.
Note: Connectors P18 and P25 overlap and share the same footprint.
GPIO Trace
P0.21 TRACECLK
P0.22 TRACEDATA[0]
P0.23 TRACEDATA[1]
P0.24 TRACEDATA[2]
P0.25 TRACEDATA[3]
Table 9: nRF9160 trace interfaces
4.12 Debug output
The nRF9160 DK supports programming and debugging external boards with Nordic
SoC
s and
SiP
s.
To debug an external board with SEGGER J-Link OB IF, connect the Debug out connector P19 to your target
board with a 10-pin flat cable.
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