Experimental Physics and
Industrial Control System

"Eric Bjorklund, NPSM" <[email protected]> · Thu, 11 Apr 1996 12:19:54 -0600 (MDT)

We have discovered what may be possible bug with the aao record.  The problem
appears to be in the "put_array_info" routine, which stores the number of
points to write in the NELM field of the record.  The problem with this that if
you write less than NELM points to the aao record,  any further connections to
this record get the new, lower, value of NELM (through "cvt_dbaddr" or
"get_array_info") and are no longer able to write as many points as the record
originally specified.

My questions are:

 o Shouldn't "put_array_info" be updating the NORD field instead of the NELM
   field? (if so, it means we should probably change the code in
   devAaoCamac.c as well).

 o What is the correct value, NELM (the capacity of the record) or NORD (the
   number of points actually written) to return from "cvt_dbaddr" and
   "get_array_info"?

 o (and, BTW...  shouldn't SIOL be defined as an OUTLINK on an aao record?)

					Eric Bjorklund
					AOT-6 (LANSCE Operations)
					LANL ([email protected])

Experimental Physics and Industrial Control System

Experimental Physics and
Industrial Control System