Application of tracing tools for analysis of microcontroller failures arising under the 14 MeV neutrons exposure

The trace support tools capabilities for a microcontroller (МС) with a Cortex-M3 core are analyzed to investigation of failures arising under the 14 MeV neutrons exposure. It has been shown that in most cases, MC hang is caused by the microcontroller going into a handling an inactive exception infinite loop. The cross-section values for the single event functional interrupt and the single event latch-up are estimated.