Dut continuity test with only digital io structures apparatus and methods associated thereof

A system to identify open or short circuits in at least a device under test (DUT) comprising:

• a non-transitory machine readable medium storing a plurality of non-transitory machine readable instructions adapted to operate a computer and control equipment connected to said computer to identify open or short circuits in at least said DUT comprising:
• a first plurality of non-transitory machine readable processing sequences comprising a first plurality of machine readable instructions to operate an electrical signal measuring section to produce one or more first category resistor-capacitor (RC) delay measurements on one or more circuits associated with one or more device under test (DUT) input/output I/O) elements to determine if said circuit associated with said DUT is an open circuit based on said one or more first category RC delay measurements, wherein said first plurality of machine readable instructions further determine if said one or more circuits is a closed circuit based on said one or more first RC delay measurements;
• a second plurality of non-transitory machine readable processing sequences comprising instructions to operate said electrical signal measuring section to determine if said circuit associated with said DUT is an open circuit based on one or more first category measured values obtained based on time domain reflectometry (TDR) associated with at least one of said DUT I/O elements;
• and
• a third plurality of non-transitory machine readable processing sequence comprising instructions to operate said electrical signal measuring section to determine if said circuit associated with said DUT has a short circuit by applying voltage on said I/O element while measuring voltage on other I/O elements of said circuit of said DUT;
• wherein said second plurality of non-transitory machine readable processing sequences are executed;
• and then said third plurality of non-transitory machine readable processing sequences are executed.