Segger-Specific Gdb Protocol Extensions - Segger J-Link User Manual

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3.3.4

SEGGER-specific GDB protocol extensions

J-Link GDB Server implements some functionality which are not part of the standard
GDB remote protocol in general query packets. These SEGGER-specific general query
packets can be sent to GDB Server on the low-level of GDB, via maintanace com-
mands, or with a custom client connected to GDB Server.
General query packets start with a 'q'. SEGGER-specific general queries are followed
by the identifier 'Segger' plus the command group, the actual command and its
parameters.
Following SEGGER-specific general query packets are available:
qSeggerSTRACE:config
qSeggerSTRACE:start
qSeggerSTRACE:stop
qSeggerSTRACE:read
qSeggerSWO:start
qSeggerSWO:stop
qSeggerSWO:read
qSeggerSWO:GetNumBytes
qSeggerSWO:GetSpeedInfo
Table 3.5: General Queries
J-Link / J-Trace (UM08001)
Query Packet
CHAPTER 3 J-Link software and documentation package
Configure STRACE for usage.
Start STRACE.
Stop STRACE.
Read STRACE data.
Starts collecting SWO data.
Stops collecting SWO data.
Reads data from SWO buffer.
Returns the SWO buffer status.
Returns info about supported speeds.
© 2004-2017 SEGGER Microcontroller GmbH & Co. KG
Explanation