2 normal control blocks, Frs-hd-cho rev. 9 – Nevion FRS-HD-CHO User Manual
Page 30
FRS-HD-CHO
Rev. 9
nevion.com | 30
misc
0
-
NOT AVAILABLE
BY COMMAND.
ONLY FOUND in
Conf 0
prog | fin
' ' | ovr
Misc info
prog if the card is freshly programmed
by the bootloader and the program is
still un-finalized. fin is the normal
condition.
ovr if DIP-switch 16 is set to the ON
position and the card is under DIP-
switch control.
Note 1: The info part of misc has
additional functionality when locate is
used: locating <remaining seconds>.
This enables a visible countdown
clock in Gyda, but is not a required
part of FLP400.
6.2 Normal control blocks
Bloc
k
Blk
#
Commands
Example
Response
Control
ceq
0
-
ceq 0
cd | ncd
cable equalizer for electrical input 1. No
control, only used to report carry detect or
not carry detect.
ceq
1
-
ceq 0
cd | ncd
cable equalizer for electrical input 2. No
control, only used to report carry detect or
not carry detect.
cho
0
pri <k> |
pri <k> <l> |
pri <k> <l> <m>
pos man <k> |
pos auto
latch reset
t1 <hold_time>
t2 <lock_time>
cho 0 pri 0
cho pri 0 1
cho pri 10 2
cho 0 pos man 1
cho 0 pos auto
cho 0 latch reset
cho 0 t1 1000
cho 0 t2 1000
size 5 pri k,l,m auto t1
<hold time> t2 <lock
time>
size 5 pri k,l,m man m t1
<hold time> t2 <lock
time>
Video input select
pri: a prioritized list of inputs, used when
change-over is automatic. The list can have
1, 2 or 3 entries, or levels. Manual mode is
effectively the same as automatic mode with
one priority level only, but has its own
command.
0 = from electrical input 1
1 = from electrical input 2
2 = mute
3 = internal video generator
4 = none
The module will always respond with 3
levels, filling in 4=none for the levels not
used.
t1 and t2: change-over doesn't happen
immediately, as a precaution against glitches
and unstable signals. The timers t1 and t2 let
the user decide how long (in ms) we will
cling on to a missing input before we
consider it gone and move on to the next pri
level, and how long an input with a higher
priority should be present before we
consider it repaired and switch back,
respectively.
Note: MCU firmware before ver. 1.10 also
have latch and rule settings. These are
deprecated.
cho
1
size 3 pri k,l auto
size 3 pri k,l man m
No commands available. Included to show
internal status and to update Gyda graphics.
cho
2-9 pri <k> |
pri <k> <l>
cho 2 pri 1
cho 5 pri 0 2
size 4 pri k,l
Audio fallback setting
Audio change-over blocks, one cho per
audio output from the audio matrix, mtx 0.