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CVS4 Command Reference (Cont'd)
Error 7: An internal buffer has overflowed, for instance more than 16 button codes were sent as
part of the "Front Panel Button Emulation" command.
The CVS4 Command Set
Each command will be listed in all the different ways it can be issued. Usually each command
has two different ways of being issued. The first is used to set its value, the second as a query
command.
If the command has an associated response string, it will also be listed.
As described in the section on the K.I.S.S.™ protocol, whitespaces and commas are optional
in many cases. The format used here includes a single space after the command and com-
mas, with no spaces, between parameters. The format given here does not show the optional
checksum or CRC-8 checkcodes that may be appended to all commands, nor does it show the
required <CR> that terminates all commands.
The response strings are the actual strings returned from CVS4, which (except for the cases
of backward compatibility with the HDS4.2) return the same format as described above. The
format does not show the optional checksum or CRC-8 checkcodes that may be appended to
all response strings if enabled, nor does it show the <CR><LF> that terminates all Response
Strings.
Version Query
Query for the current firmware version and PCB type of the CVS4.
V ?
V
Response String:
=V CVS4 firmware_rev pcb_type
Where:
firmware_rev = Version number of the CVS4's firmware.
pcb_type
Power Control
Turn on / off, or toggle the power state of the CVS4.
P 0
P 1
Request version string.
Request version string.
= PCB type. Used to determine firmware compatibility.
Turn off power.
Turn on power.
CVS4 Component Video Switch
11
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