Troubleshooting - Silicon Laboratories ZGM130S Zen Gecko User Manual

7.2.4 Troubleshooting

Problem
No data received after ending a
debug session.
No data received after flashing
a new application.
Other issues
silabs.com | Building a more connected world.
Solution
After certain debugger operations the host computer manually disables SWO on the target in order
to conserve power. This might cause SWO data to not appear if the target application initialized
SWO before the debugger has disconnected. Either press the RESET-button on the Wireless Start-
er Kit to reset the target application, or make sure that the target application verifies that SWO is
enabled and configured before sending any data.
Disconnect from TCP port 4900, press the RESET-button on the kit, then reconnect to 4900. If this
does not fix the issue, try to restart the kit by unplugging and replugging the USB cable.
UG381: ZGM130S Zen Gecko Wireless Starter Kit User's Guide
Board Controller
Rev. 1.2 | 25