Rosendahl bonsaiDRIVE - Manual (Page 23)

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MENU 072 STILL & SLOMO PICTURE
PAL and NTSC video standards consist of two sequential, interlaced
half frames (called first and second fields). There are video sources
where both fields are scanned simultaneously (called frame scan),
and also systems that do individual scans for each field (field scan).
The playback of a complete frame (two fields) in a still picture can
lead to a flicker effect as both fields are alternate played back.
Using the menu STILL & SLOMO PICTURE the playback mode for
still and slow motion frames can be changed:
FIELD shows only the first half frame which reduces the vertical
resolution but removes field flicker from field scanned video.
FRAME shows both half frames with full vertical resolution.
MENU 073 9-PIN MACHINE ID
To remote control the bonsaidrive through the Sony 9 pin protocol
connect the external controller being used to the remote port C24.
Using the [REMOTE] key, switch over the communication from the
bonsai remote to the external controller.
For menu settings or normal transport commands the communication
must be switched to the bonsai remote panel. That means
[REMOTE] must be deactivated.
When connecting the external controller take care that the
bonsaidrive is the Sony 9-pin "CONTROLLED DEVICE" on C24.
The pinning and signal levels must comply.
Note: The pinning and levels are not compatibel to PC COM ports
and should be adapted using the converters which are available to
buy.
Sony 9 pin communication usually starts with a "device request"
command. The machine being controlled answers with its
identification (ID).
In menu 25 "9-PIN MACHINE ID" one can select either
B1 00 PAL/ B000 NTSC for a Sony A500 or the bonsaidrive
Identification 31 E0 PAL/ 30 E0 NTSC.
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MENU 074 GPIO FUNCTION
The GPIO (General Purpose Input/ Output) Port C22 has the
following pinning.
(1) GPO_1
(5) GPI_1
(2) GPO_2 (6) GPI_2
(3) GPO_3 (7) GPI_3
(4) GPO_4 (8) GPI_4
(9-15) GND
The inputs (GPIs) are switched to ground (GND) for example with a
press button switch. The input signals are debounced in bonsaidrive
and the selected GPI command is carried out when the contact
closes.
The outputs (GPOs) are 0 V inactive, and 5 V active drivers with a
100 ohm output impedance. The output current is limited to 50 mA.
When connecting a LED one should add a series resistance of 330
ohms to limit the diode current to about 7 mA. When connecting reed
or coil relays it is recommended to use a protection diode.
Electronic solid state relays (SSR) do not need a protection diode
and can be directly connected without additonal components.
Take care that all GPIO connections are isolated and that there are
no ground or current loops to other grounds or potentials.
With the DISABLE setting all GPI inputs have no function. The GPO
outputs are switched momentarily to inactive = 0 V at reset (shortly
after start).
With the SELECT CLIP 1,2,3,4 function the GPIs 1...4 are switched
to select clip number 1...4 respectively.
When the auto play mode is activated, (menu 014) the selected clip
is played once from locator 1 to locator 2 or repeats in an endless
loop depending on the menu selection.