Giga-tronics 58542 - Triggering Example 3; Triggering Example 4

Program Examples
Publication 21555, Rev. E, September 2002 A-23
A.5.3 TRIGgering Example 3
Please note, the READ#? measurement data query requires TRIG:SOUR IMM for proper operation.
While TRIG:SOUR is HOLD, data output is also invalid, 9.e+40, but the SYST:ERR? query response is
different, -214, Trigger deadlock.
260 ASSIGN @Pwr_mtr to 70101
270 CLEAR @Pwr_mtr
275 WAIT 1
280 OUTPUT @Pwr_mtr;*CLS ! Clears old messages from SYST:ERR buffer
290 WAIT 0.3
300 OUTPUT @Pwr_mtr;CALC1:MODE NORM ! NORMal Mode.
310 OUTPUT @Pwr_mtr;CALC1:POW 1 ! Channel 1 configured to measure sensor 1 power
320 OUTPUT @Pwr_mtr;SENS1:CORR:FREQ 1.44E9
! Applies Cal Factor for 1.44 GHz to data.
330 !
340 OUTPUT @Pwr_mtr;TRIG:SOUR HOLD ! Halts triggering when used with FETCh#?
350 !
360 FOR I=1 TO 10
370 OUTPUT @Pwr_mtr;READ1? ! READ#? requires TRIG:SOUR IMM not, HOLD.
380 ENTER @Pwr_mtr;Rdg
390 PRINT Rdg
400 NEXT I
410 !
420 OUTPUT @Pwr_mtr;SYST:ERR? ! Query error buffer
430 ENTER @Pwr_mtr;A$
440 PRINT A$
530 END
A.5.4 TRIGgering Example 4
The following examples show the use of BUS triggering with FETCh#? in NORMal and BURSt Modes.
270 ASSIGN @Pwr_mtr to 70101
280 CLEAR @Pwr_mtr
290 WAIT 1
300 OUTPUT @Pwr_mtr;CALC1:MODE NORM ! NORMal Mode.
310 OUTPUT @Pwr_mtr;CALC1:POW 1 ! Channel 1 configured to measure sensor 1 power
320 OUTPUT @Pwr_mtr;SENS1:CORR:FREQ 1.44E9
! Applies Cal Factor for 1.44 GHz to data.
330 !
340 OUTPUT @Pwr_mtr;TRIG:SOUR BUS
350 !
360 FOR I=1 TO 10
362 OUTPUT @Pwr_mtr;TRIG ! TRIG is the SCPI Bus trigger. Can also use *TRG
370 OUTPUT @Pwr_mtr;FETC1? ! FETC#? acquires data
380 ENTER @Pwr_mtr;Rdg
390 PRINT Rdg
400 NEXT I
410 !
530 END