ashtech HDS800, Reference Manual

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310
Set Command Library
DSY: Daisy Chain
Function
This command is used to redirect all the characters flowing
through a given serial port (source port) to another
(destination port), without interpreting the flow of redirected
data.
Once the daisy chain mode is on, only the command used to
discontinue this mode can be interpreted on the source port.
Redirection can be in both directions, in which case two DSY
commands, instead of one, are required to allow bidirectional
data flow.
Command Format
Syntax
Redirecting data from a source port to a destination port:
$PASHS,DSY,c1,c2[,d3][*cc]
Discontinuing the daisy chain mode from a specified source
port:
$PASHS,DSY,c1,OFF[*cc]
Discontinuing the daisy chain mode for all source ports:
$PASHS,DSY,OFF[*cc]
Parameters
Examples
Redirecting port D to port A:
$PASHS,DSY,D,A*3E
Redirecting port D to port A and port A to port D:
$PASHS,DSY,D,A*3E
Parameter Description Range
c1 Source port ID
A, B, C, D, E, F, G,
I, P, Q
c2 Destination port ID
A, B, C, D, E, F, G,
I, P, Q
d3
Mode:
• 0: Raw (default). Data are sent to the desti-
nation port as and when they arrive.
• 1: Block. Data are sent to the destination
port only after a complete message has
arrived.
0,1
*cc Optional checksum *00-*FF