THORLABS DCC1645C User Manual

© 2013 Thorlabs GmbH444
DCx Cameras
4.5.46 is_SetPixelClock
USB 2.0
USB 2.0
Syntax
INT is_SetPixelClock (HIDS hCam, INT Clock)
Description
Attention
This function is obsolete and should not be used anymore. We recommend to use the is_PixelClock()
function instead (see also Obsolete functions ).
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.
Note
Some sensors allow a higher pixel clock setting when if binning or subsampling is 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.
Attention
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_Exposure()
If you are using the DCx Camera's flash function: is_IO()
Input parameters
hCam
Camera handle
Clock
Pixel clock frequency to be set (in MHz)
IS_GET_PIXEL_CLOCK
Returns the current pixel clock
IS_GET_DEFAULT_PIXEL_CLK
Returns the default pixel clock
IS_GET_PIXEL_CLOCK_INC
Returns the pixel clock increment
Return values
When used with
IS_GET_PIXEL_CLOCK
Current setting
When used with
IS_GET_DEFAULT_PIXEL_CLK
Default setting
IS_CANT_COMMUNICATE_WITH_DRIVER
Communication with the driver failed because no driver
has been loaded.
IS_CANT_OPEN_DEVICE
An attempt to initialize or select the camera failed (no
camera connected or initialization error).
IS_INVALID_CAMERA_TYPE
The camera type defined in the .ini file does not match
the current camera model.
IS_INVALID_CAMERA_HANDLE
Invalid camera handle
IS_INVALID_MODE
Camera is in standby mode, function not allowed
IS_INVALID_PARAMETER
One of the submitted parameters is outside the valid
range or is not supported for this sensor or is not
available in this mode.
IS_IO_REQUEST_FAILED
An IO request from the uc480 driver failed. Possibly the
versions of the uc480_api.dll (API) and the driver file
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THORLABS DCC1645C Specifications

General

Brand	THORLABS
Model	DCC1645C
Category	Security Camera
Language	English