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Chapter 6: Serial Control
6. Serial Control
Use the following parameters to control the ServSwitch DKM FX via its serial
interface.
115.2K, 8, 1, NO
(115.2 kbps, 8 data bits, 1 stop bit, no parity)
Command
<STX>, <command byte (CMD)>, [data bytes (D0…DN)], <ETX>
[ ] = Optional elements
Response
<ACK> , [<ECHO>]
[ ] = Optional elements
<ECHO> reports the ServSwitch DKM FX sequences enabled by a command that
shows the new switching status of the ServSwitch DKM FX. The echo can be
used to update user applications and to operate several matrices in parallel.
Parameter Description
Command byte: In the range 0x40 to 0x6F (see the list of allowed commands
below).
Data bytes: a) To prevent transferring control statements of control commands
while transferring binary data, the data are divided into low-nibble and high-
nibble. The data are distributed to the low nibbles of two bytes and provided
with an offset by 0x60, for example, 0x1F.
=> 0x61 + 0x6F
b) 7-bit data: (0x0 to 0x7F) are provided with an offset by 0x80,
e.g. 0000011 => 0x83
c) ASCII data => 0x20 to 0x7E are transmitted unencrypted.