System Common Controls
27
DLPU028C – October 2014 – Revised November 2016
Copyright © 2014–2016, Texas Instruments Incorporated
Operating the DLP LightCrafter 6500 and 9000
The EVM can be commanded to enter one of the four operating modes. Within the
Operating Mode
group
box there are four choices:
1.
Video Mode
– This mode is primarily used for display applications, and is not recommended for
applications which require pixel accuracy. In this mode, the user can choose from the four following
video modes:
•
Parallel RGB interface
•
Internal test pattern generator with nine test patterns options
•
Pattern image display from flash memory
•
Solid Curtain with choice of color
2.
Pre-stored Pattern Mode
– In this mode, the user can create a pattern sequence using images stored
in flash.
3.
Video Pattern Mode
– In this mode, the user can define a pattern sequence using pattern data or video
which is streamed using a parallel RGB interface.
4.
Pattern On-The-Fly Mode
– In this mode, the user can create a pattern sequence using bitmap images
which are loaded into the internal memory of the DLPC900 via the USB or I
2
C interfaces. This mode
can be helpful to view a pattern sequence before storing the images in flash memory, as updating the
flash to use
Pattern Mode
can be a timely process.
3.3.2 Chipset Type
The GUI will query the EVM to determine if it is connected to a DLP LightCrafter 6500 or 9000. The
indicators in the
Chipset Type
group box will be updated to show which of the two EVMs is connected.
3.3.3 EVM Information
The
Introduction Main Page
will show an image of the EVM currently connected and helpful links to online
resources.
3.3.4 Status
The
Status
panel indicators show the current state of the DLPC900. When any of the boxes are checked,
this indicates the stated text has occurred. Any boxes that state an error and remain checked must be
corrected before continuing to operate the EVM.
The following is a description of each status indicator:
•
System Memory Test
– The DLPC900 performs an internal memory test at power-up. The box is
checked if the test passed.
•
Controller/DMD Incompatible
– The box can be checked if either the controller or DMD are
incompatible with the firmware. There also may be an issue with communication between the controller
and DMD, especially in the SCP lines. If this is the case, it could be caused by damage to the flex
cable, the DMD not sitting properly in the socket, or a missing or damaged DMD.
•
Slave Present and Ready
– The box is checked when the GUI is connected to a DLP LightCrafter
9000. If the GUI is connected to a DLP LightCrafter 9000 and the box is not checked, it could indicate
that one or both of the DLPC900’s are malfunctioning.
•
Internal Initialization Complete
– The box is checked when all power-up initialization routines have
completed and passed.
•
DMD Reset Waveform Controller Error
– The box is checked whenever the DMD Reset Controller has
found multiple overlapping biases or reset operations accessing the same DMD block of micromirrors.
•
Forced Buffer Swap
– The box is checked whenever a forced buffer swap occurs. This error can occur
if the DLP LightCrafter 6500 and 9000 is set to Video Mode and the vertical back-porch timing is too
small. The error can also occur if the DLP LightCrafter 6500 and 9000 is set to Video Pattern Mode
where the patterns are from the video port and the pattern sequence timing do not match the video
port VSYNC. Forced buffer swaps may also occur during any of the pattern modes in preparing a
pattern sequence and the timing of reading the status. The user may need to perform additional reads
of the status to get a correct state of this indicator. If the box continues to be checked, this could
indicate an error condition in the pattern sequence.