AVIIVA® EM2-EM4
25
1013D - AVIIVA EM2/EM4 02/11
e2v semiconductors SAS 2011
•
Camera status
: Get the Camera status register
Read function : “
r stby
”;
Returned by the camera : 32bits integer :
Bit 0 : (
StatusWaitForTrigger
) : No trig received from more than 1sec
Bit 1 : (
StatusTriggerTooFast
) : Missing triggers. Trig signal too fast
Bits 2, 3, 4, 5, 6 and 7 : reserved.
Bit 8 : (
StatusWarningOverflow
) : True is an overflow occurred during FFC or Tap balance
processing
Bit 9 : (
StatusWarningUnderflow
) : True is an overflow occurred during FFC or Tap balance
processing
Bits 10, 11, 12, 13, 14, 15 : Reserved
Bit 16 : (
StatusErrorHardware
) : True if hardware error detected
Bits 17 to 31 : Reserved
5.3.4
Image Format
•
CCD Size
(
SensorWidth
) :
Gives the number of pixel of the CCD. This value is available in the CommCam
“Image Format” section :
Read function : “
r ccdz
”;
Return by the camera : Integer 512 to 4096 depending on the sensor embedded in the Camera.
Can not be written;
•
Signal source
(
TestImageSelector
) :
Defines if the data comes from the Sensor or the FPGA (test
Pattern). This command is available in the CommCam “Image Format” section :
Read function : “
r srce
”;
Returned by the camera : “0” if Source from the Sensor and “1” if test pattern active
Write function : “
w srce
” <value> :
“0” to switch to CCD sensor image
“1” to switch to Test Pattern 1
:
Detailed in APPENDIX A
“2” to switch to Test Pattern 2
:
Detailed in APPENDIX A
The test pattern is generated in the FPGA : It’s used to point out any interface problem with the
Frame Grabber.