Lauterbach TRACE32 User Manual

PQIII Debugger | 25
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1989-2021 Lauterbach GmbH
SYStem.CONFIG Configure debugger according to target topology
The four parameters IRPRE, IRPOST, DRPRE, DRPOST are required to inform the debugger about the
TAP controller position in the JTAG chain, if there is more than one processor in the JTAG chain. The
information is required before the debugger can be activated e.g. by a SYStem.Up. See example below.
TriState has to be used if (and only if) more than one debugger are connected to the common JTAG port at
the same time. TAPState and TCKLevel define the TAP state and TCK level which is selected when the
debugger switches to tristate mode.
Jtag Informs the debugger about the position of the Test Access Ports (TAP) in
the JTAG chain which the debugger needs to talk to in order to access the
debug and trace facilities on the chip.
Format: SYStem.CONFIG <parameter> <number_or_address>
SYStem.MultiCore <parameter> <number_or_address> (deprecated)
<parameter>
(JTAG):
DRPRE
DRPOST
IRPRE
IRPOST
CHIPDRLENGTH <bits>
CHIPDRPATTERN [Standard | Alternate <pattern>]
CHIPDRPOST <bits>
CHIPDRPRE <bits>
CHIPIRLENGTH <bits>
CHIPIRPATTERN [Standard | Alternate <pattern>]
CHIPIRPOST<bits>
CHIPIRPRE <bits>
TAPState
TCKLevel
TriState
Slave
NOTE: When using the TriState mode, nTRST/JCOMP must have a pull-up resistor on the
target. In TriState mode, a pull-down is recommended for TCK, but targets with pull-
up are also supported.

Lauterbach TRACE32 Specifications

General

Operating System Support (Host)	Windows, Linux
Manufacturer	Lauterbach GmbH
Category	Debug and Trace Tool
Supported Architectures	ARM, Power Architecture, RISC-V, x86
Interface	JTAG, SWD, Nexus, Aurora
Features	Debugging, tracing, multicore debugging
Host Interface	USB, Ethernet
IDE Integration	Eclipse
Scripting Language	Practice
Power Measurement	Yes (requires specific PowerProbe hardware)
Trace Technology	Instruction Trace, Data Trace
License Type	Floating license, node-locked license available
Software Compatibility	Supports various compilers and toolchains