Tool/software:
Hello, Ti expert!
DMD is DLP670S. Please refer to this link to understand the use environment and methods. The problem of this link has been solved by using the following EDID file.
If you use the following EDID file, not refresh the picture display will appear in Video pattern mode.
The EDID file uses LCR670S_9000_500XY_6500_HDMI_EDID.
With the default of 2716*1600@30HZ, the Video pattern mode can normally project the image and the camera can also normally take pictures.
Because our application needs to move at a low speed, we need to use 2716*1600@15HZ. It is found that there is something wrong with the display of the projected image at this resolution.
There are two situations:
1. When the dynamic range is set to "full (0-255)", there will be a fixed line in the middle of the image, and many rows of pixels will be offset. As shown in the figure below, the arrow can see:
2. When the dynamic range is set to "limited (16-235)", two lines of pixel data disappear in the middle of the projected image (the original image has these two lines of data), and then these two lines of pixel positions are filled with other pixel data, but there is no pixel offset. The following figure is a demonstration:
Because my optical machine uses Video pattern mode, there are no above two problems when it is 2716*1600@30HZ, and there are no above two problems when it uses pattern on-the-fly mode, so it is confirmed that this problem is not caused by the fault of camera drawing.
We also tried to update Firmware to 6.2.0.0 or 6.0.0, and there was still a problem.
Because there are no above two problems at 2716*1600@30HZ, we consider that the high probability of this problem is caused by EDID parameters.
Therefore, I ask Ti engineer to confirm whether this bug will exist, and debug a version of EDID file to solve this bug, which is used to support 2716*1600@15HZ and ensure the normal projection display in Video pattern mode.
