We are using Kinetis MKM34Z256VLL7 device. AFE is set to software trigger continuous conversion mode. XBAR is used to trigger PDB with AFE COCO and the ADC conversion result is read in AFE callback. After about half a minute conversion results from ADC freezes although the AFE COCO interrupt is still occurring. Code and settings are from example DRM162 - Three Phase Power Meter Reference Design (REV0) from 2015. What could be wrong?