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Chapter 2. ICL 7
Function Definitions
clear_parallel(
clear_count
);
clear the entire parallel register, clear_count times
clear_serial(
clear_count
);
clear the serial register, clear_count times
clear_until_trig();
waits for a trigger, clearing meanwhile
expose(
exp_time
);
a timed delay, while light falls on the CCD
expose_until_trig();
allow light to fall on the CCD until a trigger pulse
expose_while_trig(
clear_first
);
bulbmode expose while you hold the button
flash(
flash_time
);
activate the flash circuit for flash_time ms
loop_begin(
loop_count
);
loop control, start a loop, do it for loop_count cycles
loop_end();
loop control, bottom end of a loop
pixel_display(
x,y
);
instruction to application: display this size image
pixel_readout(
s_offset, s_size, s_bin,
p_size, p_bin
);
READ DATA FROM THE CCD
this is the only way to output image pixels
script_begin();
this must be the first verb in a script
script_end(
contin_clear
);
this must be the last verb in a script
if contin_clear is non-zero, the CCD is left in
continuous clear mode.
shift(
number_of_lines
);
shift the parallel register several lines, using a mode
shift_image_to_storage( );
redundant, but useful for frame transfer CCDs
shift_mode_is( );
parallel shift mode: image and storage (normal)
shift_mode_is_alt( );
parallel shift mode: image and storage (alternate)
shift_mode_ism( );
parallel shift mode: image and storage (MPP)
shift_mode_ism_alt( );
parallel shift mode: image and storage (MPP alt.)
shift_mode_s( );
parallel shift mode: storage array (normal)
shift_mode_s_alt( );
parallel shift mode: storage array (alternate)
shift_mode_sm( );
parallel shift mode: storage array MPP)
shift_mode_sm_alt( );
parallel shift mode: storage array (MPP alternate)
shutter_close( );
close the camera shutter
shutter_open( );
open the camera shutter
clear_parallel
(clear_count)
This function clears the parallel register (the entire CCD: the premask area, active area, and postmask area)
clear_count
times where
clear_count
must be greater than zero. The function puts the CCD into an image
and storage shifting mode, then shifts the entire parallel register into the serial register, thus clearing the CCD
of all charge. This process can also be accomplished by using other functions, such as using a number of shift
commands with the proper shift mode, but this function is easier to use. Although the serial register runs
continuously during the clearing, there are some circumstances where the serial register may still contain
charge. (This condition requires additional clearing with the
clear_serial
command.) Note that this
command leaves the parallel shifting mode set to
shift_mode_is
.
clear_count
must be between 1 and
65,535, inclusive.
clear_serial
(clear_count);
This function clears the serial register (the prescan area, active area, and postscan area)
clear_count
times.
The function runs the serial register, dumping any charge into the output node where the charge is transferred
into the power supply.
clear_count
must be between 1 and 65,535, inclusive.