This anomaly applies to IC Rev. Engineering A, build codes QIAA-AA0.
The debugger interface is lost. The device halts or seems to stop executing.
Reading address 0x40029618ul, either directly from firmware or with the debugger (for example, using a memory window in the IDE).
Crash. Need to power cycle the device and restart the debugging session.
Do not read address 0x40029618ul.