277SDK (Software development Kit)
© 2010 Thorlabs
7.3.98
is_SetPixelClock
Syntax
INT is_SetPixelClock (HIDS hCam, INT Clock)
Description
is_SetPixelClock() sets the frequency used to read out image data from the sensor (pixel clock
frequency). Due to an excessive pixel clock for USB cameras, images may get lost during the
transfer. If you change the pixel clock on-the-fly, the current image capturing process will be aborted.
Some sensors allow a higher pixel clock setting if binning or subsampling has been activated. If
you set a higher pixel clock and then reduce the binning/subsampling factors again, the driver will
automatically select the highest possible pixel clock for the new settings.
Changes to the image geometry or pixel clock affect the value ranges of the frame rate and
exposure time. After executing is_SetPixelClock(), calling the following functions is recommended
in order to keep the defined camera settings:
is_SetFrameRate()
is_SetExposureTime()
If you are using the DCx camera's flash function: is_SetFlashStrobe()
Input Parameters
Pixel clock frequency to be set (in MHz)
Returns the default pixel clock frequency
Return Values
Function executed successfully
Current setting when used together with
IS_GET_PIXEL_CLOCK
Camera is in standby mode, function not allowed.
The value for Clock is outside the pixel clock range
supported by the camera.
Related Functions
is_SetOptimalCameraTiming()
is_SetFrameRate()
is_SetExposureTime()
is_SetAutoParameter()
is_SetBinning()
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