# swmTrace Library

The swmTrace library is a complement to the RTT Viewer plugin described in the Diagnostic Strategies chapter of the RSL15 Developer’s Guide. The swmTrace library is a logging utility, intended to provide debugging capabilities through an application running on the Arm Cortex-M33 core. When using the swmTrace library’s functions with the RTT viewer, the logging information shown by the RTT Viewer is color-coded, based on the level of logging used and the particular function calls to the swmTrace library.

For more information about this topic, see: