I am writing a program using the HP8566 spectrum analyzer. During long sweeps, I need to have the bus back for a parallel program that is running. I cannot get the HP8566 to relinquish the bus during the sweep. From the programming manual, if you suppress the carriage return or line feed command at the end of a "Take Sweep" (TS) command, the HP8566 will return the bus. I have not been able to do that. (I have made sure that the VISA Write is in asynchronous mode as well.) Does a VISA Write automatically add this termination?
From the HP8566 manual:
"In normal programming practice, a semicolon terminates each command statement. By using the semicolon as a
terminator, an automatic carriage-return/line-feed is performed by the controller. However, the controller can
perform computations or address other instruments while the analyzer is executing TS, if the carriage-return/linefeed
is suppressed."
Any help would be appreciated.
Regards, Cris