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Chapter 4, Status Reporting
Setting up an SRQ Interrupt
10
OPTION BASE 1
20
COM/Io_names/INTEGER Inst_address,Std_event_reg,Calibration_reg
30
COM /Io_names/ INTEGER Hardware1_reg,Srq_enab_reg,Status_byte,Event_reg
40
!
50
! Define
E8285A instrument address
60
Inst_address=714
70
!
80
PRINTER IS CRT
90
CLEAR SCREEN
100
!
110
! Reset the E8285A to bring it to a known state
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OUTPUT Inst_address;"*RST"
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!
140
! Clear the E8285A status reporting system
150
OUTPUT Inst_address;"*CLS"
160
!
170
! Set up the desired interrupt conditions in the
180
!
190
! 1) Standard Event Status Register Group
200
!
Event register conditions which will set the Summary Message
210
!
TRUE if they occur:
220
!
Bit 5: Command Error
230
!
Bit 4: Execution Error
240
!
Bit 3: Device Dependent Error
250
!
Bit 2: Query Error
260
!
270
Std_event_reg=32+16+8+4
280
!
290
!
Set up the Standard Event Status Enable Register to generate the
300
!
Summary Message
310
!
320
OUTPUT Inst_address;"*ESE";Std_event_reg
330
!
340
! 2) Calibration Status Register Group
350
!
Condition register conditions which will set the Summary Message
360
!
TRUE if they occur:
370
!
Bit 4: TX Auto-zero failed
380
!
Bit 3: Voltmeter Self-cal failed
390
!
Bit 2: Counter Self-cal failed
400
!
Bit 1: Sampler Self_cal failed
410
!
Bit 0: Spec Anal Self-cal failed
420
!
430
Calibration_reg=16+8+4+2+1
440
!
450
!
Set the Transition Filters to allow only positive transitions in
460
!
the assigned condition(s) to pass to the Event Register
470
!
480
OUTPUT Inst_address;"STAT:CAL:PTR";Calibration_reg
490
OUTPUT Inst_address;"STAT:CAL:NTR 0"500!
510
!
Set up the Calibration Status Register Group Enable Register to
520
!
generate the Summary Message.
530
!
540
OUTPUT Inst_address;"STAT:CAL:ENAB";Calibration_reg
550
!
560
!
The Calibration Status Register Group Summary Message is passed to
570
!
the Status Byte Register through Bit 8 in the Questionable
580
!
Data/Signal Register Group Condition Register. The Questionable
590
!
Data/Signal Register Group must be configured to set its Summary
600
!
Message TRUE if the Summary Message from the Calibration Status
610
!
Register Group is TRUE. Therefore Bit 8 (2^8=256) in the Questionable
230
S:\agilent\e8285\USRGUIDE\BOOK\CHAPTERS\hpibstat.fb
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E8285A:
decimal value = 2^5 = 32
decimal value = 2^4 = 16
decimal value = 2^3 =
decimal value = 2^2 =
decimal value = 2^4 = 16
decimal value = 2^3 =
decimal value = 2^2 =
decimal value = 2^1 =
decimal value = 2^0 =
8
4
8
4
2
1
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