Package psychopy :: Package hardware :: Package crs :: Module bits

Module bits

Interface to the bits++ (http://www.crsltd.com/) for precise control of contrast

These may one day get built into psychopy.visual

Classes
	BitsBox The main class to control a bits++ box.

Functions

init()
initialise the bits++ box Note that, by default, bits++ will perform gamma correction that you don't want (unless you have the CRS calibration device) (Recommended that you use the BitsBox class rather than calling this directly)

source code

setVideoMode(videoMode)
set the video mode of the bits++ (win32 only)

source code

reset(noGamma=True)
reset the bits++ box via the USB cable by initialising again Allows the option to turn off gamma correction

source code

Variables
	haveBitsDLL = `False`
	bits8BITPALETTEMODE = `1`
	NOGAMMACORRECT = `16384`
	GAMMACORRECT = `32768`
	VIDEOENCODEDCOMMS = `524288`
	DEBUG = `True`

Function Details

setVideoMode(videoMode)

source code

set the video mode of the bits++ (win32 only)

bits8BITPALETTEMODE = 0x00000001 #normal vsg mode

NOGAMMACORRECT = 0x00004000 #No gamma correction mode

GAMMACORRECT = 0x00008000 #Gamma correction mode

VIDEOENCODEDCOMMS = 0x00080000

(Recommended that you use the BitsLUT class rather than calling this directly)