problem with automatic stoping of controller

i implemented inverter control algorithm using simulink on F28335 using target specific blocks. auto generated code working fine on board, as i can see expected result on physical scope. After 6 minutes controller automatically stops performing control action. I haven't configured any such things. what can be the reason behind this? i posted same query on TI forum also. https://e2e.ti.com/support/microcontrollers/c2000/f/171/p/447924/1612963#1612963