Agilent Technologies E4438C Manuel d'instructions télécharger pdf (Page 162)

Downloading and Using Files

ARB Waveform Data Downloads

Chapter 4156

Waveform Downloading Using HP BASIC for Windows



The following program will

download a waveform using HP BASIC for Windows



into volatile ARB memory. The

waveform generated by this program is the same as the default SINE_TEST_WFM waveform file

available in the signal generator’s waveform memory. This code is similar to the code shown

for BASIC for UNIX but there is a formatting difference in line 130 and line 140.

To download into non-volatile memory, replace line 80 with:

210 OUTPUT @ESG USING "#,K";":MMEM:DATA ""NVWFM:testfile"", #"

As discussed at the beginning of this section, I and Q waveform data is interleaved into one

file in 2’s compliment form and a marker file is associated with this IQ waveform file.

In the Output commands, USING “#,K” formats the data. The pound symbol (#) suppresses

the automatic EOL (End of Line) output. This allows multiple output commands to be

concatenated as if they were a single output. The “K” instructs HP BASIC to output the

following numbers or strings in the default format.

10 ! RE-SAVE "BASIC_Win_file"

20 Num_points=200

30 ALLOCATE INTEGER Int_array(1:Num_points*2)

40 DEG

50 FOR I=1 TO Num_points*2 STEP 2

60 Int_array(I)=INT(32767*(SIN(I*360/Num_points)))

70 NEXT I

80 FOR I=2 TO Num_points*2 STEP 2

90 Int_array(I)=INT(32767*(COS(I*360/Num_points)))

100 NEXT I

110 PRINT "Data Generated"

120 Nbytes=4*Num_points

130 ASSIGN @Esg TO 719

140 ASSIGN @Esgb TO 719;FORMAT MSB FIRST

150 Nbytes$=VAL$(Nbytes)

160 Ndigits=LEN(Nbytes$)

170 Ndigits$=VAL$(Ndigits)

180 WAIT 1

190 OUTPUT @Esg USING "#,K";"MMEM:DATA ""WFM1:data_file"",#"

200 OUTPUT @Esg USING "#,K";Ndigits$

210 OUTPUT @Esg USING "#,K";Nbytes$

220 WAIT 1

230 OUTPUT @Esgb;Int_array(*)

240 OUTPUT @Esg;END

250 ASSIGN @Esg TO *

260 ASSIGN @Esgb TO *

270 PRINT

280 PRINT "*END*"

290 END

1 2 ... 157 158 159 160 161 162 163 164 165 166 167 ... 207 208

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Agilent Technologies E4438C Manuel d'instructions Page 162

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