Sony DFW-X700, DFW-SX900 technical manual Camera

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DFW-SX900

DFW-X700

COMMAND SETTING AND OPERATION TIMING

As shown in the following figure, it takes at least about 50 ms for external trigger signals to be not received after the Trigger OFF command has been set to the CSR (F0F00830h) of the camera.

When low frame rate at which the transmission of one image takes a long time is selected, isochronous transmission may not have completed when Trigger OFF is executed. In this case, output of normal moving images will start after transmission completes.

Set Trigger OFF in this period

VD

		1 V			Approx. 50 ms
Trigger Mode until now				NORM. from here

Isochronous

Output of normal moving images starts from here at the earliest

Timing between external trigger signal and video signal output

When the Trigger Mode (CSR F0F00830h) is set to ON, the camera will start exposure as shown in the following figure when it detects the external trigger signal.

After the exposure time set by the Shutter command (CSR F0F0081Ch), VD pulses will be generated inside the camera. Images will be isochronously output after the A period from the falling edge of the VD.

(The following figure shows an example where the frame rate is 7.5 fps for the DFW-SX900, and 15 fps for the DFW-X700.)

VD

External Trigger Signal

Ext Trig.

Isochronous

		Exposure Time		A			Approx. 120 ms (DFW-SX900)
							Approx. 120 ms (DFW-SX900)
							Approx. 64 ms (DFW-X700)

External Trigger Acceptance Prohibition Period	B
	B

Camera		A [ms]	B [ms]

DFW-SX900	(7.5 fps)	Approx. 8	Approx. 4.2

DFW-X700	(15 fps)	Approx. 2.4	Approx. 0

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Contents Technical Manual Table of Contents Main Features OutlineSystem Components Specifications Connection Pin assignment of Trig in connector female Pin assignment of camera connectorNames and Functions of Parts Dimensions CCD Pixel Location Top ViewSpectral Characteristics Typical Values Functions Camera FunctionsAuto Exposure GainShutter BrightnessSharpness Color TemperatureGamma White BalanceOne Shot SaturationIsochronous Start/Stop TriggerOperations in Normal Mode Operations in Normal ModeWhen exposure time is 1 frame or shorter Time until Data is Read Out and Output Period of DataWhen exposure time is over 1 frame Operations When Frame Rate is ReducedInside Camera SUB Isochronous Front Panel LED External Trigger Shutter Inputting trigger and pulse conditionsExternal Trigger Shutter Operations Example of Acceptable Trigger Interval Camera Exposure TimePartial Scan Mode Cutting sizeCSR F0F00000h Camera Initialize Register Write Only CSR F0F00600h Current Frame RateCSR F0F00604h Current Video Mode CSR F0F00608h Current Video FormatCSR F0F0060Ch CSR F0F00614h Isochronous Transmission Start/StopCSR F0F00620h Memory Save Channel CSR F0F00618h Memory SaveCSR F0F0061Ch One Shot CSR F0F00624h Current Memory ChannelCSR F0F00800h Brightness CSR F0F00804h Auto ExposureCSR F0F00808h Sharpness CSR F0F0080Ch White Balance One-Push Auto White BalanceCSR F0F00810h Hue CSR F0F00814h SaturationCSR F0F00818h Gamma CSR F0F0081Ch Shutter Auto exposure CCD IrisShutter OFF CSR F0F0088Ch Optical Filter CSR F0F00820h GainCSR F0F00830h Trigger Auto Gain ControlFor Format7 CSR F1000108h Image PositionCSR F100000Ch Image Size When DFW-SX900When DFW-X700 Minimum Unit for DFW-SX900 Minimum Unit for DFW-X700CSR F1000110h Color Coding ID CSR F1000144h Byte per PacketGeneral precautions for partial scan function Command Sending Procedure Until Images are Displayed Acquiring the camera control register base addressCheck available video modes Acquiring the format/mode/frame rateCheck available formats Check available frame rates Example Format0 Mode3Video transmission start command To set the trigger modeAcquire the CSR offset address of Mode0 Procedure for Format7Aquire the available mode for Format7 Acquire the MaxSize/UnitSize/ColorCodingIDVideo transmission start command Format7 Specify the packet sizeCommand Setting and Operation Timing Trigger Mode command and actual operation timing One Shot CMD and actual operation timingCamera Supplements List of Camera FunctionsIEEE1394 Cable Features Recommended Specifications for Personal Computer PCHost Adapter Card DFWA-400 Specifications Installing the Host Adapter Card Setup of the Driver PrecautionsPrecautions on software provided For Windows Setting up the driverSetting up the demonstration software For Windows NT4.0Page DFW-SX900