MBMC Request

Hi Francois,

I created a new thread for your request.

Eric

Hello Sanjeev,

thank you a lot for your quick reply.

The requests I refered to may be found using the following links:

http://software-dl.ti.com/dlp/embedded/catalog/dlp3000/mbmcfiles/24Apr2013_02_12_PM_1.zip

http://software-dl.ti.com/dlp/embedded/catalog/dlp3000/mbmcfiles/24Apr2013_02_12_PM_2.zip

You find "24 4bpp RGB MBMC Pattern Sequences with Exposure times 1600us and 20000us". So far, so good. The problem is, that there are green patterns on the pattern numbers 14 to 16 (->see the corresponding readme-files and the lookuptable below).

So, what do I need? I need exactly the same sequences with the same exposure times but with a correction of this discontinuities in the pattern sequences.

-----------                   --------------------------                            ----------------

PATTERN NO.        PATTERN BIT-DEPTH (in bpp)        PATTERN COLOR
    -----------               --------------------------                            ----------------


    1                4                Red

    2                4                Green

    3                4                Blue

    4                4                Red

    5                4                Green

    6                4                Blue

    7                4                Red

    8                4                Green

    9                4                Blue

    10                4                Red

    11                4                Green

    12                4                Blue

    13                4                Red

    14                4                Green -> GREEN

    15                4                Green -> BLUE

    16                4                Green -> RED

    17                4                Red->GREEN

    18                4                Green->BLUE

    19                4                Blue->RED

    20                4                Red->GREEN

    21                4                Green->BLUE

    22                4                Blue->RED

    23                4                Red->GREEN

    24                4                Green->BLUE

Is this possible. Yesterday I realized, that this correction is even necessary with the following two links

http://software-dl.ti.com/dlp/embedded/catalog/dlp3000/mbmcfiles/24Apr2013_02_07_PM.zip

http://software-dl.ti.com/dlp/embedded/catalog/dlp3000/mbmcfiles/24Apr2013_02_08_PM.zip

It would be very nice, If these pattern sequences might be corrected also.

Thank yo very much!

Francois

Hello Francois,

Thank your for pointing out !!! have corrected them now.

My collegue will post them soon.

Thanks again for your patience.

Regards,

Sanjeev

Hello Sanjeev,

thank you for the sequences - > They work perfectly. At that point I have one more question, but I'm not sure, if this is the right point to ask.

I would like to do some calibration. That's why I generated a bitmap that I can send to the DMD and that helps me to work on a calibration algorithm. The point is, that this algorithm shall be executed on every start up of the system (I've written an own program). When I boot the DLP, automaticaly the Logo of TI (I guess you know the picture) is shown, followed by vertical colored RGB lines. The point is, that I would like to show this calibration-bitmap at this point instead of the logo. Is there a function that can change that boot-pic?

Thank you once more;-)

Regards,

Francois Torner

Hello Francois,

The splash image displayed during the boot-up is displayed using what is called as 'regular Video Sequence'  these sequences are meant for just viewing purpose. When the boot-pic images are displayed the DLPC300 would have enabled multiple functions such as degamma, scaler etc... infact the actual boot-pic resolution is 427x240 and the DLPC300 (refer I2C programmer guide) input resolution configured to Reg[0x0C] = 0x23, so image is scaled.

If that is OK with then YES there is a small utility on the web where you can replace the boot-pic with your own, your image needs to be 427x240 for updating. Here is the link http://www.ti.com/tool/dlpr300 download DLPR300SPLASH.

Fell free to get back to us incase you face any problems.

Regards,
Sanjeev

Hello Sanjeev,

I have written some requests in 2013 and every time the support worked fine. Thank you so far. I hope it will be able this time, too :-)

The point is that there are the following MBMC-sequences, that can be downloaded and work well:

96 1bpp RGB MBMC Pattern Sequence with Exposure Time = 20000us

48 2bpp RGB MBMC Pattern Sequence with Exposure Time = 20000us

24 4bpp RGB MBMC Pattern Sequence with Exposure Time = 20000us

12 8bpp RGB MBMC Pattern Sequence with Exposure Time = 20000us

For some camera-application I need exactly these sequences, but with other exposure times. The times should be 5000us, 10000us and 15000us.

Would this be possible?

Thank you. Regards,

Francois

Hello Francois,

Regarding the above request, could you tell give us more information for each of the sequences you want to be generated?

Bit depth  Number of patterns and the LED?

Accordingly I will generate the MBMC sequences for the requested exposure times and post them.

Regards

Manasi

Hello Manasi,

thank you for your reply.

The point is, that I need exactly the above discribed sequences that have already been uploaded by Sanjev, but with different exposure times months ago. Please see the attached table view.

-----------------------------------------------------------------------------------------------------------------------------------------------

Pattern       Bits         Description                                                                         Requested Exposure Times

-----------------------------------------------------------------------------------------------------------------------------------------------

96               1bpp       RGB MBMC Pattern Sequence with Exposure Time = 5000 us, 10000 us & 15000 us

48               2bpp       RGB MBMC Pattern Sequence with Exposure Time = 5000 us, 10000 us & 15000 us

24               4bpp       RGB MBMC Pattern Sequence with Exposure Time = 5000 us, 10000 us & 15000 us

12               8bpp       RGB MBMC Pattern Sequence with Exposure Time = 5000 us, 10000 us & 15000 us

-----------------------------------------------------------------------------------------------------------------------------------------------

Here you can see an example. The 4bpp-sequence should (for example) look like that:

-----------------------------------------------------------------------------------------------

PATTERN NO.        PATTERN BIT-DEPTH (in bpp)        PATTERN COLOR
-----------------------------------------------------------------------------------------------

    1                          4                                                          Red

    2                          4                                                          Green

    3                          4                                                          Blue

    4                          4                                                          Red

    5                          4                                                          Green

    6                          4                                                          Blue

    [...]                      [...]                                                       [...]

    22                       4                                                          Red

    23                       4                                                          Green

    24                       4                                                          Blue

-----------------------------------------------------------------------------------------------

The other sequences (1bpp, 2bpp and 8bpp) should have the same continuous RGB color arrangement, but 96, 48 and 12 patterns.

I hope, you understand what I mean :-)

Thank you so far!

Francois

Hello Manasi,

I just wanted to ask if you have already generated the pattern sequences...

Thank you.

Regards,

Francois

Hello Francois,

Yes I have generated the MBMC sequences you have requested. Those sequences would be posted today.

Also for the 8bpp sequences the minimum exposure time is 8334 us, so 5000 us is not possible in that case.

Thanks for your patience!

Regards

Manasi

Hello Francois,

So the requested sequences have been uploaded on the MBMC page, they should show up in an hour.

For the 8bpp sequence, I have created sequences for 8334us instead of 5000us since that's the minimum exposure time requirement.

Regards

Manasi

Hello Manasi,

thank you very much...

Regards,

Francois