EVM2010

Hello, 

Thank you very much for your post and interest in the DLPDLCR2010EVM!

Could you please describe your goal in more detail? I'm not familiar with a "Gray Matrix".

Thanks, 

Brandon

Hello Brandon,

Gray matrix can be considered a picture with messy black and white  blocks ,which is not an one-dimensional photo of the rate in web page

e2e.ti.com/.../729968 .

I want to use the DLP2010EVM-LC to Realize gray matrix coding with alternating black and whitecolors，I have added a matric picture in Internal Pattern

mode,but,the results is unexpected.

In fact,I want to control each micromirror to coding Space light ,I would like make sure if DLPC3470 can do it ,have you have the  Operational video to help me,

Thanks your attention.

sincerely.

Zong

Hi Zong, 

Thank you for providing the additional details. Are you loading your pattern from the "Light Control" tab and the "Internal Pattern" page? Or are you trying to display an external image via HDMI? 

Just to confirm, you are trying not to display a 1D Horizontal/Vertical pattern, correct?

Thanks, 

Brandon

Hi Brandon

You are right,I am loading my pattern from the "Light Control" tab and the "Internal Pattern" page,I am not trying to  display an external image via HDMI , I try it

via USB-MINI.I am  trying to  display a 1D Horizontal/Vertical pattern, Do I need to compile it into firmware and download it to the EVM?

Thanks

Zong

Hi Brandon,

I have operated it in this order.It warns me that my image width is smaller than the display width when I enter the matrix image with black and white blocks, then I choose white light, it projected white light all, not the

alternating white and black blocks like what I imagined. Projection, I want to know how I verified that the matrix image I entered successfully set each micromirror in the DMD, have you provided the correct test method

for me.

Thanks

Zong

Hi Zong, 

The best way to display a 2D pattern is via HDMI/external source. The method described above can only display 1D patterns. 

Are you able to get the system to display a 1D horizontal or vertical pattern?

Thanks,

Brandon

Hi Brandon,

You meen that the DLPC3470 in EVM2010-LC can not control each  micromirror in DMD,What a pity ! I can not  simplify my system to display 1D pattern. I want to know how the external source can be used to display it 

but ,I have seen that it can not enter pictures to the GUI via the external pattern and splash pattern,which way can solve it?

On the other hand,I've ever seen some of the answers in the forum that DLPC 3470 controls each micromirror.I want to make sure if 2010EVM-LC can control each micromirror.

If it does it,how can I do it?

Thanks

Zong

Hi Brandon,

Which tab in GUI can control DLP-2010-LC to display 2D patterns,I mean that how can I use the GUI to communicate whith DMD via HDMI, Please remind me the method that how to solve this problem

Thanks

Zong

Hi Zong, 

For you 2D patterns over HMDI, you'll need to have your pattern created as a .PNG or .JPG (or other image format). Once you have the image ready to be displayed, connect the EVM to your PC via USB and HMDI cable. 

After the EVM is connected, go to the "Display tab" and the "Video and Color" page. The hit the "Switch to External Video" button to use the HDMI source. After the external source is set up, display your pattern using full screen mode. 

Thanks, 

Brandon

Hi Zong, 

Did my previous post answer your question? For now, I'm going to make this thread closed. You are welcome to continue to post if you have additional questions. 

Thanks, 

Brandon

Hi Brandon,

I am sorry to reply to you late because some terrible things happened. I also make attempts . Your answers guide me to achieved results.depicted in Fig.1

but,It is not my demand，I  want to use the image depicted in Fig.2 to set each Micromirror of DMD,I wish every one can be ON or OFF according to the Black and white block mixed matrix but not be displayed simply as a picture ,My project requires me to use the DMD as a coded mirror instead of a simple projection system by setting up the matrix.

Do you have any other way to help me achieve it? I am grateful.

Zong

Hi Zong, 

Can you save that image as a .png or .jpg file, then use an image viewer to display the pattern in full screen mode? This should allow the EVM to just display the pattern and the entire computer screen. 

Thanks, 

Brandon

Hi Brandon

Above Fig.1,It is sucessful to show  a part of image ,Full screen display is achievable. But ,I am afraid that you may can not understand my idea ,what you say may not help me control micromirror ,which only help me project one image and useless for my designed system ,I have explicitly mentioned that I need to control the flipping of each micromirror according to the image to achieve spatial encoding. It is not a simple display of images. This method of using a photo editor to enlarge the image is not worthwhile for me. Do you have any other methods to control the micromirror? In addition, if I set it up successfully, there are other ways to check my micromirror flipping situation. Can I observe it if I disassemble it?

Zong

Hi Zong,

How many patterns do you need to project? If it's only a few at a time you could try using splash pattern mode. If you need to display a lot quickly your only option with this platform is the external video mode. You would need to create a program that treats the EVM as an external monitor and sends the desired patterns to the EVM to be displayed.

Thanks,

Kyle

Hi Kyle

I would say thanks to your partner  Brandon .So ,You can check Previous record，what I need help to is not to project some patterns,but to control the flipping of each micromirror according to Above Fig.2 ,black means micromirror off,white means micromirror on.on the other hand ,When using DMD alone, do you know how to implement DMD space coding control, are you willing to take some time to carefully check the realistic meaning of the black and white block coding matrix that I am talking about, if yes, I would like to accept your help gratefully, if not, Don't need to delay your and your technical team for too much time, I will stop this topic and begin other projects.

Zong

Hi Brandon

Thanks a lot for your assistance . I have another idea that input one image with  black and white block matrix into EVM by internal pattern button . The 1D mode means that each row of pixels of the picture controls each line of the DMD In turn, The imaging system receives the data brought by each row of DMD changes, stores them sequentially and then  the signals are integrated during the imaging process and subsequent signal reconstruction. Here I encountered a problem, after the picture entered, as shown in Figure 1. The GUI warning image size is smaller than the display size, and the preview interface shows that my picture has only one line of black rectangle, as shown in Figure 2 below. Ignore this problem and set the parameters to RGB, exposure time, etc. The result of the light machine projection becomes three. The rectangle of the color transform. Can you help me analyze how the problem occurs? My image will become a black rectangle when previewing and projecting, which is inconsistent with any row or column of my image.

Fig1

Fig2