Segger J-Link User Manual page 85

Response
<ReturnValue>
ReturnValue is a 4 Byte signed integer.
>= 0 O.K.
< 0 Error.
Note: ReturnValue is hex-encoded.
Return value 0 is "00000000", return value -1 is "FFFFFFFF".
3.3.4.4 qSeggerSTRACE:read
Syntax
qSeggerSTRACE:read:<NumItems>
Parameter
NumItems: Maximum number of trace data (addresses) to be read. Hexadecimal.
Description
Read the last recently called instruction addresses. The addresses are returned LIFO,
meaning the last recent address is returned first.
Note: For more information please refer to UM08002 (J-Link SDK user guide),
chapter STRACE.
Response
<ReturnValue>[<Item0><Item1>...]
ReturnValue is a 4 Byte signed integer.
>= 0 Number of items read.
< 0 Error.
ItemN is a 4 Byte unsigned integer.
0x00000000 - 0xFFFFFFFF Address of the executed instruction
Note: ReturnValue and ItemN are hex-encoded.
e.g. 3 Items read: 0x08000010, 0x08000014, 0x08000018
Response will be: 00000003080000100800001408000018
J-Link / J-Trace (UM08001) © 2004-2013 SEGGER Microcontroller GmbH & Co. KG
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