J-Link/J-Trace User's GuideIntroduction CoreSight Technology Connectors Install J-Link/J-Trace Driver Configure µVision Use J-Link/J-Trace Configure Cortex-M Devices for Tracing µVision Windows
CoreSight™ is an on-chip debugging and tracing technology designed by ARM. The device manufacturer can implement CoreSight features in various combinations.
CoreSight features can be accessed through a JTAG or Serial Wire interface. Debugging in JTAG and Serial Wire mode at the same time is not possible. Cortex-M processor-based devices can include a:
The debug interface offers two modes:
The Debug Interface communicates with the following units:
Trace Port Interface
The Trace Port Interface encodes and provides trace information via two possible interfaces:
The Trace Port Interface communicates with the following units:
Serial Wire-JTAG Switch (SWJ)
J-Link/J-Trace generate sequences to automatically switch between Serial Wire Debug and JTAG Debug mode.
Two standard connectors are available:
of your data.