Quantum Data 881 User Manual
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Chapter 14 DisplayPort Link Layer Testing
Examples
Syntax
Explanation
Command: DPTX:LNKU
Intiates link training with currently defined val-
ues. For example it will use the setting
defined for DPTX:SLNR for the link rate.
DPTX:MVAL
DPTX:MVAL?
Sets the MVAL
Queries for the current value of the MVAL parameter.
Arguments
Valid Values
Mval: 0 - 32,768
Examples
Syntax
Explanation
Command: DPTX:MVAL 1
Sets the MVAL parameter to 1.
Query: DPTX:MVAL?
Queries for the current value of the MVAL
parameter.
DPTX:NVAL
DPTX:NVAL?
Sets the NVAL parameter.
Queries for the current value of the NVAL parameter.
Arguments
Valid Values
Nval: 0 - 32,768
Examples
Syntax
Explanation
Command: DPTX:NVAL 1
Sets the NVAL parameter to 1.
Query: DPTX:NVAL?
Queries for the current value of the NVAL
parameter.
DPTX:PBS7
DPTX:PBS7
Specifies the PRBS7 test pattern for link training or disables the test pattern.
Queries for the current value of the PBS7 parameter.
Arguments
Valid Values
Pattern: 0 = (00) disables outputs
1 = (01) test pattern 1 transmitted
(unscrambled).
2 = (10) symbol error rate measurement
pattern transmitted.
3 = (11) PRBS7 test pattern transmitted.
Examples
Syntax
Explanation
Command: DPTX:PBS7 3
Transmits the PRBS7 test pattern (11).
Query: DPTX:PBS7?
Queries to determine the current setting of
the PRBS7 test pattern parameter.
DPTX:PTLT
Performs link training.
Arguments
Valid Values
N/A N/A
Examples
Syntax
Explanation
Command: DPTX:PTLT
Intiates link training.
Command
Description