How to tap a pin on very small surface mounted IC
Test hook may not be suitable for high speed operation such as ETM trace.
If your package is QFP then you can take FRC cable and solder it to required pin. Soldering is not an issue for 0.5 mm pitch chip, use flux along with solder wire to ease your job.
You can also use glue to fix FRC wire on board so that the pin won't get damaged during handling.