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Programming Examples
Sending Queries to the Logic Analyzer
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!
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! ************* INTITIALIZE VARIABLE FOR NUMBER OF BYTES *****************
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! The variable "Numbytes" contains the number of bytes in the buffer.
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!
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REAL Numbytes
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Numbytes=0
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!
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! ************** RE-INITIALIZE TRANSFER BUFFER POINTERS ******************
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!
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CONTROL @Buff,3;1
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CONTROL @Buff,4;0
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!
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! *********************** SEND THE DATA QUERY **************************
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OUTPUT 707;":SYSTEM:HEADER ON"
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OUTPUT 707;":SYSTEM:LONGFORM ON"
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OUTPUT @Comm;"SELECT 2"
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OUTPUT @Comm;":SYSTEM:DATA?"
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!
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! ******************** ENTER THE BLOCK DATA HEADER *********************
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! Enter the block data header in the proper format.
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!
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ENTER @Comm USING "#,B";Byte
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PRINT CHR$(Byte);
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WHILE Byte<>35
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ENTER @Comm USING "#,B";Byte
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PRINT CHR$(Byte);
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END WHILE
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ENTER @Comm USING "#,B";Byte
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PRINT CHR$(Byte);
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Byte=Byte-48
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IF Byte=1 THEN ENTER @Comm USING "#,D";Numbytes
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IF Byte=2 THEN ENTER @Comm USING "#,DD";Numbytes
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IF Byte=3 THEN ENTER @Comm USING "#,DDD";Numbytes
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IF Byte=4 THEN ENTER @Comm USING "#,DDDD";Numbytes
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IF Byte=5 THEN ENTER @Comm USING "#,DDDDD";Numbytes
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IF Byte=6 THEN ENTER @Comm USING "#,DDDDDD";Numbytes
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IF Byte=7 THEN ENTER @Comm USING "#,DDDDDDD";Numbytes
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IF Byte=8 THEN ENTER @Comm USING "#,DDDDDDDD";Numbytes
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Str1$=DVAL$(Numbytes,10)
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! DVAL$ returns an 11 character string
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PRINT Str1$[12-Byte]
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!
18–20
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