Instruction manual

If the acquisition memory format is set to interlace acquisition, all acquisition window parameters must be

specified as frame-related values. If the acquisition memory format is set to non-interlace, the window

parameters must be specified as field-related values.

The hardware does not allow to set the window parameter in units of one pixel. Therefore, the values

programmed can be inquired with el_GetSetting (EL_ACQSTARTX, EL_ACQSTARTY, EL_ACQSIZEX,

EL_ACQSIZEY).

EXAMPLE:

el_SetAcqWindow( BoardId, StartX, StartY, SizeX, SizeY );

5.2.29. el_SetCycleTime

long

el_SetCycleTime ( long BoardId, long CycleTime, long Reserved1, long Reserved2

);

BoardId : board ID returned by el_OpenHW

CycleTime : time in us after which an new trigger pulse is detected

DESCRIPTION: Sets the desired cycle time (in micro seconds) after which the camera can be

retriggered. In auto trigger mode this value determines the line frequency for line cameras and the frame

frequency for frame cameras. Nearly all cameras have a minimum value, determined by the data readout

time and in some cases also by the exposure time . If a values below this limit is set the value is

automatically increased to the minimum value. The realized and the desired values can be obtained with

el_GetCycleTime.

If external trigger is used the desired value should be set to 0.

For cameras which do not use the clock generated on the board the use of el_SetPixelClock is still

necessary because the values set there are used for the necessary timing calculations. For some

cameras it is possible, that the parameters set by el_SetScriptPara influence the timing too. In these

(rare) cases the meaning of the parameters is described in the "camera.htm" file.

RETURN VALUE:

0 if OK

-1 if ERROR. See el_GetErrorCode for details.