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J16 Pinout on DLP LCR4500 Kit

William Billini
Prodigy 210 points
Other Parts Discussed in Thread: DLPC350

Hello,

 
Does anyone know where I can get the pinout information for the J16 connecters on the LCR4500? The pinout listed in the manual refers to connecting it to a PandaBoard. It's just not very helpful.

I am using a BeagleBone and need to know were to connect the outputs from my BB.

Thanks.

  • 0
    Prodigy 210 points
    I meant to say J6 pin connectors, not J16.
  • 0 in reply to William Billini
    TI__Mastermind 30875 points
    Hi William,

    From the J1, J4, J3 and J6 connectors of LightCrafter 4500 you can make out few things -

    1. Data path connectors - J1 and J4: consist of RGB 24 bit parallel video signal and I2C bus for communication
    2. Connector J3 and J4 have pins that will enable routing the Video and I2C signal from J1 and J4 instead of external miniHDMI and I2C (J17) connector; it is done as follows -
    J3 - Pin #4 - SYS_MSTR_MUX_SEL - When this pin is set to high; the Video signals to the DLPC350 controller will be routed from J1 and J4 instead of external HDMI connector
    J3 - Pin #22 - SYS_USB_SEL - When this pin is set to high; this will enable USB data lines go through J6 Pin #3 and Pin#5, instead of external USB connector J21.
    J6 - Pin #27 - SYS_I2C_OE - When this pin is set to high; this will route the I2C lines from J4 #14 SYS_I2C1_SCL & J1 #15 SYS_I2C1_SDA instead of external I2C connector J17.
    J6 - Pin #19 - SYS_TRIGGER_SEL - When this pin is set to high; this will route the trigger input signals from J3 Pin #10 and #12 instead of external trigger input connector.

    So when you trying to interface with BeagleBone then you can use GPIOs and set them to HIGH so that the signals will go from J1, J4, J3 and J6 connectors instead of external connectors miniHDMI, I2C and Trigger I/O.

    In the background here in TI we are working on developing small adapter board to interface J1 , J4, J3 and J6 of LightCrafter 4500 EVM to BeagleBoneBlack EVM Expansion header P8 and P9; with this adapter board and TI Sitara SDK LINUXEZSDK-AM35X v6.0 we can demonstrate basic things like, Streaming Video from BBB, I2C configuration and control etc.. this project is in very early stage. Anyways the above connector configurations should help you to connect Beagle Bone to LightCrafter 4500 EVM.

    Regards,
    Sanjeev
  • 0 in reply to Sanjeev
    Prodigy 210 points

    Sanjeev,


    Thank you for your help! Here's the deal, I am a mechanical engineer and I'm lacking computer engineering expertise. I know how to program, but I'm not experienced with programming electronic devices like the LCR4500.

    What I want to do with the LCR4500 is to project binary images with a UV LED -- similar to the TI 3D printer. However, the images that I am going to generate will exceed the 32 MB of onboard memory. (I have no idea why Wintech cheaped out on onboard memory!)

    Hence, my idea is to stream the images from the BeagleBone Black and have the LCR4500 be a slave to the BBB.

    What do you suggest I do?