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Programming Examples
Output and Edge Detection Examples
The following three programming examples demonstrate edge detection, DAV,
and mixed programming methods.
Edge Interrupt Example
This example is coded in BASIC for a System 9000 (Series 300) linked to a
Keysight E1406 Command Module via GPIB. The example enables all four
channel ports to detect both positive and negative edges on any channel of any
port. Any edge will consequently generate an interrupt. When idle, the program
will loop and continuously display the WORD DATA REGISTERS for all four
channel ports and the EDGE INTERRUPT STATUS REGISTER. (This shows the
static state of each channel input.) On interrupt, the program will alternately
display the EDGE DETECT REGISTERS of each port, and the EDGE INTERRUPT
STATUS REGISTER.
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Keysight E1459A/Z2404B User and SCPI Programming Guide
CLEAR SCREEN
DIM A$[40]
Vxi_address=70900
!
CLEAR 7
OUTPUT Vxi_address;"*RST;*CLS"
!
REPEAT
OUTPUT Vxi_address;"SYST:ERR?"
ENTER Vxi_address;Error
PRINT "E1406 Reports Error: ";Error
UNTIL (Error=0)
!
OUTPUT Vxi_address;"VXI:WRITE 128,4,1" ! reset E1459A
WAIT .1
OUTPUT Vxi_address;"VXI:WRITE 128,4,0" ! un-reset E1459A
WAIT .1
! unmask all 16 pos bits for port 0
OUTPUT Vxi_address;"VXI:WRITE 128,24,-1"
! unmask all 16 neg bits for port 0
OUTPUT Vxi_address;"VXI:WRITE 128,26,-1"
! unmask all 16 pos bits for port 1
OUTPUT Vxi_address;"VXI:WRITE 128,40,-1"
! unmask all 16 neg bits for port 1
OUTPUT Vxi_address;"VXI:WRITE 128,42,-1"
Keysight E1459A Register Definitions
!reset E1406
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