Tektronix, Inc. DG2040, User Manual

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Reference
3Ć54
DG2040 Data Generator
Table 3Ć14: Serial code converter parameters
Parameter Function
Src Bit Specifies the bit from which the source data will be read.
Src Start Specifies the point from which reading the source data will begin.
Src Size Specifies the number of points of source data that will be read.
Dest Bit Specifies the bit into which the converted data will be written.
Dest Start Specifies the point from which converted data will be written.
Dest Size Specifies the number of points of converted data that will be written.
Press the OK side button to start the conversion.
Side Menu
Menuitem Function
Load Table Data1 Reads in a code conversion table from mass memory. The file will be
an ASCII file with the extension .TBL. The operation is identical to that
for Load Data & Setup from the File menu.
Save Table Data Writes a code conversion table to mass memory. The file must be an
ASCII file with the extension .TBL. The operation is identical to that for
Save Data & Setup from the File menu.
Edit Table Data Edits a code conversion table. This is explained in the following
paragraph.
Code Conversion Table Editing.
Figure 3-50 shows the Edit Code Table menu,
which is displayed when the Edit Table Data side menu item is selected. The
SOURCE CONDITION section of this table defines the templates used for
pattern matching. The instrument compares these templates with data sequences
in the source data to find matching patterns.
NOTE
. The data code conversion table files are arranged in essentially the same
manner as displayed on the table editing screen. In these files, a comma is used
to delimit fields and CR+LF to delimit lines. No spaces appear in the file.
Pattern matching is performed in order, starting at the top of the table. Pattern
matching is more reliable if templates with more bits (longer templates) appear
towards the top of the table.
The matching process moves along the input data as follows. The current
position is set to the start point, and the table is used to find a match for the data
at that position. When a match is found, the output code for that template is