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85330A Multiple Channel Controller 6-33
Programming
Programming Examples
1194 N=1 ! N IS THE CURRENT POINT.
1195 REPEAT
1196 !
1197 ! The TRANFER statement is a background process that allows the
1198 ! computer BUFFER to be filled while the other commands are executed.
1199 ! Therefore, other code (i.e. drawing data to the display data can go
1200 ! here without hindering the measurement process.
1201 !
1202 ! The ENTER statement can also be used to read part or all of the trace
1203 ! instead of using the TRANFER statement.
1204 !
1205 ! Remember that in FORM 1 data, which the HP 8530A uses in the FAST DATA
1206 ! modes each data point is 6 bytes. The 6 bytes must be converted to
1207 ! a real and imaginary pair.
1208 !
1209 ! --
1210 !
1211 STATUS @Buffer,4;R4 ! Check the number of bytes in the buffer
1212 IF R4>=6*N THEN ! Is there another point (6 bytes) in the buffer?
1213 !
1214 ! If yes THEN converte the data from FORM 1.
1215 !
1216 Exp=Exp_tbl(BINAND(Data_f1(N,2),255))! CONVERT FORM1 TO FORM3.
1217 Data_f3(N,1)=Data_f1(N,1)*Exp ! REAL DATA.
1218 Data_f3(N,2)=Data_f1(N,0)*Exp ! IMAGINARY DATA.
1219 N=N+1
1220 END IF
1221 !
1222 UNTIL N>Points
1223 !
1224 CONTROL @Buffer,8;0 ! TERMINATE TRANSFER
1225 OUTPUT @Rec;”SINP;” ! TAKE RECEIVER OUT OF FAST-CW MODE
1226 !
1227 END