Agilent Technologies Multiple Channel Controller 85330A - Manual (Page 98)

6-24 85330A Multiple Channel Controller
Programming
Programming Examples
1129 ! statement.
1130 !
1131 TRANSFER @Rec TO @Buffer;RECORDS Points,EOR (COUNT 6)
1132 !
1133 N=1 ! N IS THE CURRENT POINT.
1134 REPEAT
1135 !
1136 ! The TRANFER statement is a background process that allows the
1137 ! computer BUFFER to be filled while the other commands are executed.
1138 ! Therefore, other code (i.e. drawing data to the display data can go
1139 ! here without hindering the measurement process.
1140 !
1141 ! The ENTER statement can also be used to read part or all of the trace
1142 ! instead of using the TRANFER statement.
1143 !
1144 ! Remember that in FORM 1 data, which the HP 8530A uses in the FAST DATA
1145 ! modes each data point is 6 bytes. The 6 bytes must be converted to
1146 ! a real and imaginary pair.
1147 !
1148 ! --
1149 !
1150 STATUS @Buffer,4;R4 ! Check the number of bytes in the buffer
1151 IF R4>=6*N THEN ! Is there another point (6 bytes) in the buffer?
1152 !
1153 ! If yes THEN converte the data from FORM 1.
1154 !
1155 Exp=Exp_tbl(BINAND(Data_f1(N,2),255))! CONVERT FORM1 TO FORM3.
1156 Data_f3(N,1)=Data_f1(N,1)*Exp ! REAL DATA.
1157 Data_f3(N,2)=Data_f1(N,0)*Exp ! IMAGINARY DATA.
1158 N=N+1
1159 END IF
1160 !
1161 UNTIL N>Points
1162 !
1163 CONTROL @Buffer,8;0 ! TERMINATE TRANSFER
1164 OUTPUT @Rec;”SINP;” ! TAKE RECEIVER OUT OF FAST-CW MODE
1165 END