3.5 On-board Debugger
The ZGM230S Dev Kit contains a microcontroller separate from the ZGM230S Z-Wave SiP Module that provides the user with an on-
board J-Link debugger through the USB Type-C port. This microcontroller is referred to as the "on-board debugger" and is not program-
mable by the user. When the USB cable is removed, the on-board debugger goes into a very low power shutoff mode (EM4S).
In addition to providing code download and debug features, the on-board debugger also presents a virtual COM port for general pur-
pose application serial data transfer. The Packet Trace Interface (PTI) is also supported which offers invaluable debug information
about transmitted and received packets in wireless links.
The figure below shows the connections between the target ZGM230S device and the on-board debugger. The figure also shows the
Mini Simplicity Connector, and how this is connected to the same I/O pins.
for more details on debugging.
Mini Simplicity
Connector
EFR32MG
ZGM230S
PA01 (GPIO.SWCLK)
PA02 (GPIO.SWDIO)
PA03 (GPIO.SWV)
PA08
PA09
PA10
PA07
VCOM_TX
VCOM_RX
VCOM_CTS
VCOM_RTS
DEBUG_SWCLK
DEBUG_SWDIO
DEBUG_SWO
On-Board
J-Link
Debugger
Host
PC
USB
DEBUG_PTI_DATA
PD04 (FRC.DOUT)
PD05 (FRC.DFRAME)
DEBUG_PTI_FRAME
DEBUG_RESET
RESETn
Figure 3.13. On-Board Debugger Connections
UG532: ZGM230S Dev Kit User's Guide
Hardware
silabs.com
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