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Flare 12M CXP User's Manual
blocks. At the input of the LUT block the pixel depth is reduced to fixed point 8.4 and 10.2 bits
for 8-bit and 10-bit ADC modes, respectively. With current software 10-bit LUT tables are
interpolated for 12-bit values to store in the camera.
3.10 Test Pattern
The Flare CXP cameras have a test pattern mode to aid in testing connectivity between the
camera and a frame grabber. The options for the
Test Pattern
register, address 0x40000054,
are shown in Table 16.
Register Value
Description
0x00000000
Image from sensor
0x00000001
Static monochrome test pattern
0x00000002
Dynamic monochrome test pattern
0x00000003
Static Bayer color test pattern without moving lines
(color camera only)
0x00000004
Dynamic Bayer color test pattern with moving lines
(color camera only)
Table 16. Test pattern settings
In test pattern mode the camera frame rate is the same as in normal operation. All exposure
modes can be used when the test pattern is enabled. The test pattern image is always a
continuous image with a horizontal resolution set by the
Horizontal Resolution
register, and a
vertical resolution set by the
Vertical Resolution
register. The sensor is
not
disabled when the
test pattern is on. Effects of some commands, such as gain or high dynamic range modes,
may not be visible in the test pattern image, however, when the test pattern is disabled the
images from the sensor will still be affected.
The horizontal blanking period on the output of the test pattern is set to match the sensor line
rate.
The monochrome test pattern is a count up pattern. The counter starts at zero and counts up
to 0xFF (8-bit output configuration) or 0x3FF (10-bit output configuration), and then starts over
at zero again. Pixel values are repeated 8 times in both single and dual link configurations.
When the dynamic patterns are enabled, there is a moving horizontal and vertical line in the
image. In every image the horizontal line moves one line down compared to the previous
image. The vertical line moves to the right by 8 pixels every image. Both lines are always
present in the image. When the previous frame has the horizontal line in the last line of the
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