Test 2-3: DC Offset (cont’d)
Example Program
This program performs the DC Offset Test.
10! RE-STORE "DC_OFFSET"
20 COM @Afg
30 DIM Offset(1:6)
40 !
50 !---------- Set up I/O path and reset AFG ----------
60 ASSIGN @Afg TO 70910 !AFG I/O path
70 OUTPUT @Afg;"*RST;*CLS" !Reset AFG
80 !
90 !---------- Ini tialize variables ----------
100 DATA 9.755,4.0,-4.0,-9.755,2.0,-2.0
110 READ Offset(*) !Read in offsets
120 !
130 Vout_old=0 !Initialize
140 !
150 !---------- Set u p DMM ----------
160 CLEAR SCREEN
170 PRINT "Set up DMM:"
180 PRINT
190 PRINT " Function -- DCV"
200 PRINT " Range -- AUTO"
210 PRINT
220 PRINT "Connect DMM HI and LO to AFG Output."
230 DISP "Press ’Continue’ when ready"
240 PAUSE
250 CLEAR SCREEN
260 !
270 !---------- Set u p A F G ----------
280 OUTPUT @Afg;"*RST" !Reset AFG
290 OUTPUT @Afg;"LIST:SSEQ:DEL:ALL" ! Delete all sequences
300 OUTPUT @A fg;"LIST:SEGM:DEL :ALL" !Delete all segments
310 WAIT .5
320 OUTPUT @Afg;"ROSC:SOUR CLK10;"; !10MHz clock
330 OUTPUT @Afg;":OUTP:LOAD INF;"; !Infinite load
340 OUTPUT @Afg;":VOLT MAX;"; !MAX output
350 OUTPUT @Afg;":FUNC USER" !User waveform
360 !
370 CALL Def_seq_zeros !Define sequence of zeros
380 OUTPUT @Afg;"FUNC:USER DC_ZEROS" !Select sequence
390 !
400 !---------- Per form test ----------
410 PRINT "AMPLITUDE"," OFFSET"
420 PRINT
430 !
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Agilent E1445A Service Manual Verification Tests 43