HP E1368A User Manual

Page 43

Execute:

OUTPUT 70915;"*CLS"

!Clear all switchbox status
structure.

OUTPUT 70915;"STAT:OPER:ENAB 256"

!Enable Scan Complete Bit to

set bit 7 in Status Register.

OUTPUT 70915;"*SRE 128"

!Enable bit 7 of Status Register to
assert SRQ.

OUTPUT 70915;"TRIG:SOUR EXT"

!Set to external trigger mode.

OUTPUT 70915;"SCAN (@100:103)"

!Select channels to be scanned.

OUTPUT 70915;"INIT"

!Start scanning cycle.

WHILE NOT BIT (SPOLL(70915),7)

!Waiting for scan complete.

PRINT “DO OTHER OPERATION HERE”

!Enter program lines for

computer to do other operations.

END WHILE

100 PRINT “INTERRUPT GENERATED”

!Program goes to this line after
interrupt is generated by a
completed scanning cycle.

110END

!Terminate program.

Comments

Channel List Can Be Extended Across Boundaries. For multiple module
switchbox instruments, the channels to be scanned can extend across switch
modules. For example, for a two module switchbox instrument,

SCAN

(@100:203)

will scan all channels of both Microwave Switch modules.

Setting Multiple Continuous Scans. Use

ARM:COUNt

number to set from

1 to 32767 scans. Use

INITiate:CONTinuous ON

to set continuous scanning.

42 Using the HP E1368A/69A/70A Modules

Chapter 3

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