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DLPDLCR2000EVM: DLP® LightCrafter™ Display 2000 Evaluation Module width BeagleBone Black Wireless

Part Number: DLPDLCR2000EVM
Other Parts Discussed in Thread: DLP2000,

1. Beaglebone Black Wireless is used and is updated to the latest image already.

2. USB is used to power DLP2000, a 5V adaptor is used to power DLP. (Both can work normally seperately)

Problems are:

1. When i type command i2cdetect and it shows:

debian@beaglebone:~$ i2cdetect -r -y 2

0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- UU UU UU UU -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --

According to the instruction 'TI DLP® LightCrafter™ Display 2000 EVM User's Guide', there should be a '1b' in i2c.

(Does it mean that it is fine for communication between DLP and BBBW if i can see the i2c graph?)

Same as https://e2e.ti.com/support/dlp/f/94/t/618632,

Thanks for any Help!!

  • Zhengqi,

    Typically, we have seen that the BBBW does not have built-in support for the DLPDLCR2000EVM. This means that you need to manually install the cape overlay driver to the system so that it will actually detect the EVM. You can find more information about how to do this here:

    https://e2e.ti.com/support/dlp/f/94/t/663939

    Let me know if you have further questions.

    Regards,

    Philippe Dollo

  • Hi Philippe,

    Thank you for replying me so quickly.

    1. I see the cape overlay file and EEPROM data in that link. File extensions are '.dump', '.dts'. But i don't know how to use those files to install driver on my Beaglebone and what do you mean by 'from scratch' ? Is it kind of software or something like that ? Maybe it is a stupid question but please help me.

    2. Here is a command below and it said 'pre installed on: Debian Stretch/Buster & Ubuntu Bionic images'. What does 'pre installed' mean ? Is the same thing i mentioned in 1.

    sudo apt update ; sudo apt install bb-cape-overlays

    Many thanks,

    Zhou Zhengqi



  • Hi,

    I found that there is no space for me to install mplar2.

    When i use command 'root@beaglebone:~# df -h', it showed

    Filesystem      Size  Used Avail Use% Mounted on
    udev            215M     0  215M   0% /dev
    tmpfs            49M  6.7M   42M  14% /run
    /dev/mmcblk0p1  3.4G  3.2G  5.1M 100% /
    tmpfs           242M     0  242M   0% /dev/shm
    tmpfs           5.0M     0  5.0M   0% /run/lock
    tmpfs           242M     0  242M   0% /sys/fs/cgroup
    tmpfs            49M  4.0K   49M   1% /run/user/1000
    tmpfs            49M     0   49M   0% /run/user/0

    It is clear that mmcblk0p1 is full but what should i do?

    Thank you!

    Zhou