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N9030A PXA ADC Over-range Detection

Question asked by andyTPE on Jun 18, 2013
Latest reply on Jun 18, 2013 by andyTPE
Hello PXA programmers,

I am trying to detect an ADC Over Range condition.  I query the STAT:QUES:INT register and check for bit 4 (Input Overload).  Now, if I deliberately set up an overload condition and query the register, bit 4 is set to 1.  If I query again, bit 4 is zero (i.e. querying the register clears it) - okay I can live with that.  But... if I perform another sweep, the analyzer is still in overload BUT bit 4 is ZERO!!  All the time, the front panel happily tells me the analyzer is overloaded - I know that, the analyzer knows that, but the status bit thinks differently!

I could be wrong, but I think something is amiss here.  Software rev is 12.09.

Thus can someone either verify the issue and fix or suggest a strategy to test for an overload condition.

Many thanks!