Instruction manual

the cycle time, which is the time after which the cameras can be retriggered, is also controlled by
el_SetExposureTime.
If the desired values of el_SetExposureTime and el_SetExposureTime are below the values required by
the camera the real values are set to the lowest possible values and the realised values can be inquired
using the corresponding el_Get... function.
If the incremental decoder of the camera is used the software settings are not used and the user has to
insure that the trigger timing is correct.
The "Frame Start Initiator Input" of the camera can be used if el_SetExtTriggerInput( ) is called with the
parameter EL_TRIG_LVDS and external frame triggering is enabled using el_SetTriggerModes.
If external tigger sources are used, the falling slope starts the grabber generated timing.
A.8. Optisens Colorline-1728 Stereo
In the stereo mode two simultaneously running cameras are serviced. For this a special cable and a
slightly modified hardware are needed.
For the use of this camera a special firmware "p3i3.frw" file is needed. It has to be placed in the directory
of the used eleye716.dll file. If the dll is placed in the correct directory the Optisens cameras are
selectable with the configuration program. If something goes wrong only the default cameras are
selectable.
To do the necessary changes a path is available to does the modifications for you if the main installation
was done to the default paths.
The camera is used with MCLK provided by the grabber. The default clock is 24 MHz which generates a
pixel clock of 9 MHz . MCLK can be decreased to a value of 4 MHz which also decreases the maximum
line frequency.
The camera is controlled by the grabber using the EXSYNC signal. In Mode 1 the integration time and the
cycle time are controlled independently using el_SetExposureTime and el_SetExposureTime. In Mode 2
the cycle time, which is the time after which the cameras can be retriggered, is also controlled by
el_SetExposureTime.
If the desired values of el_SetExposureTime and el_SetExposureTime are below the values required by
the camera the real values are set to the lowest possible values and the realised values can be inquired
using the corresponding el_Get... function.
The incremental decoder of the cameras are not usable, because this would break the synchronous
behaviour of the cameras.
The "Frame Start Initiator Input" of the camera can be used if el_SetExtTriggerInput( ) is called with the
parameter EL_TRIG_LVDS and external frame triggering is enabled using el_SetTriggerModes.
If external trigger sources are used, the falling slope starts the grabber generated timing.
if you have a modified hardware the gain settings of the camera can modified. For this the function
el_SetRegister has to be used. Each bit can be set and reset individually. An example is given below.
// The last parameter has to be always 1
el_SetRegister(wBoardId,"Gain0", 1, 1); // set Gain0 to 1
el_SetRegister(wBoardId,"Gain0", 0, 1); // set Gain0 to 0
Appendix A. Cameras
92