LANC controler of videocameras SONY
In the article there is a description of distance controler of videocameras of line SONY CCD T R… In principal it should work for all the cameras equiped with LANC (JACK 2,5 mm stereo) connector by SONY, in case even with cameras of other producers equiped with a connector LANC as in 2,5 JACK version as in miniDIN. (I have developed the controler and tested only on the lowest type of CCD-TR415.)
Description:
Controler is connected to a camera with three-line cabel, through JACK 2,5mm. By this cabel there are transferred as double direction data as feeding voltage for controler electronic (equiped by uP AT89c2051). There are 7 buttons on the control and 3 LED. Buttons have colected functions and there are 23 of them when using TR 415.I do not send a design of a printed connection because of simplicity of its connection and a possibility of the own mechanical connection.
Functions:
List of supported
functions:
REW, F.F., PLAY, STILL, show by steps, STOP,
-x1/10, -x1/5, -x1, -x2, -x9, +x1/10, +x1/5, +x1, +x2, +x9, REC/STOP,
SCREEN, -EDIT, +EDIT, FADER, -ZOOM(wide), +ZOOM(tele)
Control is switched automaticaly into CAMERA or PLAYER mode according to the present Mode of the videocamera. If connected and functioning properly, green LED is blinking in frequency 50Hz. In the mode CAMERA (REC) lights/(STOP)blinks and at the same time red LED2. Yellow LED 3 signals in function STILL mode show by steps Shuttle/Jog (Shuttle – show by steps according to a speed of pressure of the buttom STILL, Jog – show by steps, which speed you can define by programming of speed degree – see lower).
Buttons in mode PLAYER have these functions:
S_1 |
do not used |
S_2 |
still (pause), repeated pressure changes into
mode |
S_3 |
Stop |
S_4 |
Show mode report on TV screen |
S_5 |
Play |
S_6 |
Right direction |
S_7 |
Left direction
|
Buttons S_6 and S_7 have different meaning according to the present function of the camera in mode player.
Mode |
Function of buttons S_6 and S_7 |
stop |
high speed rewind (rew a ff) |
play |
the same with a picture x1x2x9 (by following pressing the speed is increasing in chosen direction and decreasing by other button until it comes to reverse and again to increasing speeding in opposite direction). |
still/jog |
slow rewind with picture x1/5 x1/10 in both directions as in above higher moving function, it stops picture before reverse. |
still/shuttle |
steping pacing of the stopped picture by a button |
Buttons in mode CAMERA has those functions:
S_1 |
record/pause influences the red LED2 |
S_2 |
fader - efects |
S_3 |
- edit (connection of the following record) |
S_4 |
show mode reports on a TV screen |
S_5 |
+ edit (connection of the following record) |
S_6 |
tele (zoom) |
S_7 |
wide (zoom) |
Functions of buttons:
It is possible to change functions of separated pins according to your will. Only P1.0 is determined for communication on a collection LANC,it is recommended to let P1.1 for LED (open connector) and at P3,2 and P3,3 where interruption is used there is the only possible change in buttons S_6 and S_7.(Everything of course after a change in programme.)
Picture documentation:
obr.1
connector
JACK 2.5mm
obr.2
connector
miniDIN
obr.3
Symbol
LANC (L control)
Schema:
Material used:
IC1.........AT89C2051 -
24Mhz
D1,D2,D3....LED 2mA green, red,
yellow
D4..........BZX85V005.1
(Uz=5,1V)
Xtal........24MHz
C1..........2,2uF / 10V
C2,C3.......33pF
C4..........100uF /10V
C5..........0,1uF
R1..........M1
R5..........12-22R
R2,R4.......2K2
R3..........1K
S1-S7.......button for PCB
(P-B1720)
1 ks........stereo JACK 2,5mm (SCP-2002T)
1
ks........plastic box (U-KM20)
Program:
-it is joint in intel hex code,
it is possible to be used only for a personal use,
-using of the
programme is allowed only with the agreement of the author,
-changes
and adjustments of the programme as well as its further distribution
are allowed only with the agreement of the author.
Programme
in Intel hex code for download here: LANC.HEX
Programme
in binary code for download here: LANC.BIN
Design
for download here: LANC.ZIP
Warning: This version will may not work with DV and D8 they have different status of mode.
There is a version which should work also with DV and D8 cameras. It has not been tested because I do not have any DV or D8 camera.
Programme in Intel hex code for
download here: LANCD.HEX
Programme
in binary code for download here: LANCD.BIN
There is a version work only in camera mode (for V8,Hi8, D8(DV)??).
Programme in Intel hex code for
download here: LANC41.HEX
Programme
in binary code for download here: LANC41.BIN
Write on the address: Jiri Smach or alternative E-mail
Aktualizace 21.2.2001
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