DLPDLCR2000EVM: Could Not Find Debian Jessie 8.9 image file

Hello User,

Welcome to the E2E forums and thank you for your interest in DLP technology. We hope to assist you with your questions. 

It does look like the link is indeed broken. 

Can you please try with version 8.7? https://www.beagleboard.org/distros/debian-8-7-2017-03-19-4gb-sd-lxqt

Regards,

Alex Chan

Hello Alex, 
I am now using version 8.7. But this image cannot be flashed to the eMMC, so I am booting the BBB off the SD Card. That is fine but I am unable to detect the EVM on i2c. 

Below are my complete setup details:
Components:

• DLPDLCR2000EVM {EVM}
• BeagleBone Black Rev C with its USB cable {BBB}
• WANPTEK WPS3010H programmable DC Power Supply (Output is set at 5V DC with current limited at 3A) 

Power supply setting:

EVM is powered through the DC Power supply using the DC Jack as shown below: 



when powered it projects the splash screen and the LED D3 is on:





But when I connect the EVM with BBB just like shown in the video https://www.ti.com/video/5519558634001  [timestamp: 0:55], it does not show any splash screen as mentioned in step 8 in the quick start tutorial by Philippe Dollo https://e2e.ti.com/support/dlp-products-group/dlp/f/dlp-products-forum/621466/faq-dlpdlcr2000evm-quick-start-tutorial

Here is the video of how I did it:



It does not show any splash screen when connected with BBB and please note this time the LED D2 is lit as shown below:



the splash screen is projected again and LED D3 is lit if both the EVM and BBB are still powered and I pull the EVM out from BBB. and it disappears again and LED D2 is lit if I plug it back into the BBB.

I tried to check the i2c buses on BBB and I found that EVM was not detected on any of the available buses:

I am using PuTTy as mentioned in the tutorial by Philippe Dollo.
here is a screenshot showing the results of my i2cdetect



I tried pasting images between text but didn't understand how it works so I have provided you the links to images and a video uploaded to my Google Drive, anyone with these links can view them. So, please consider.

Also, one more thing, when I connect these two like I have shown in my video my laptop doesn't detect the BBB, I have to hold the BOOT button on the BBB while I connect the BBB to my laptop using the USB and after plugging in the USB I release the BOOT button, then my laptop detects the BBB and I am able to use PuTTy. In the images and video I have shared you can notice that when EVM is not plugged into BBB it draws a current around 250mA from the power supply but it does not draw any current when plugged into BBB.

I would really appreciate your help in getting me started with this.
Thanks.

Hello User,

Please give our team some time to look further into this issue.

Regards,

Alex Chan

Dear Alex,

I hope this message finds you well. It has been seven days since our last communication, and I wanted to kindly inquire about the status of the issue. I’m eager to begin working with this product and would appreciate an update on when I can expect a resolution.

Thank you for your attention to this matter.

Regards,
Ashdeep Kumar

Dear Alex,

Could you kindly confirm whether the issue might be related to the hardware interface or the power supply connections that we are currently using? Additionally, if possible, would you be able to share the specific Debian OS image file mentioned in your user guide pre installed with the EVM's drivers and the custom cape overlay required, if it is available in your archives?

I have raised a topic on BeagBone's forum for this too and awaiting their response, here's the link to it:
https://forum.beagleboard.org/t/cannot-find-debian-jessie-8-9-version-for-beaglebone-black-rev-c/39614

Regards,
Akshdeep

Hello Akshdeep,

Unfortunately I do not know if the Debian OS image file is avaiable in any archives and will have to check with the team. 

Regards,

Alex Chan

Hello Akshdeep,

1. Can you check if the I2C pins are properly configured in Beagle Bone.
2. Can you check if any other I2C peripheral is being detected when connected to these pins.

These steps will help us to know more about the issue.  

Regards,
Kirthi Vignan.

Hello Kirthi,

I checked the I2C pins on BeagleBone board, I used an MPU sensor to check, and I was able to detect it on the I2C bus with address 0x68, which was correct. I used the pins 1,3,19 and 20 on P9 of the BBB for GND, 3V3, SCL and SDA respectively. 
Below the image for I2C pin check with MPU sensor:

There's another thing I tried.
I checked the status of GPIO1_16 on BBB which is used for PROJ_ON_EXT on EVM. Its direction was set as "input", and its value was 0 (zero). I changed its direction to "output" and set its value to 1. And by doing this, DLP came in its operational state and started projecting its splash screen. 
Images also it was detected with address 0x1b as it should below shows this:

I issued the i2cset commands as mentioned in the step 10 of quick start tutorial by Philippe Dollo (linked above in the first message by me), it should've shown a duplicate screen projection of my beaglebone's desktop but what I got was this:

So, I checked the location /opt/scripts/device/bone/capes/   , It was supposed to contain a file "DLPDLCR2000", as shown in the step 11 onwards in the quick start tutorial. 

My guess is, the debian 8.7 image that I am using right now and also suggested by Alex above, is missing the Cape Overlay customizations required for the DLPDLCR2000EVM. I have the link to Philippe Dollo's article on cape overlay customization for DLPDLCR2000EVM, here is the link to that: https://e2e.ti.com/support/dlp-products-group/dlp/f/dlp-products-forum/663939/faq-dlpdlcr2000evm-bbb-cape-overlay-customization

I have downloaded the files attached in this article by him, but I am unable to follow the installation instructions. I would really appreciate your help if you could provide a clear step by step installation procedure for me to follow or if you could provide an image file preloaded with this so that I don't have to do this every time I boot up the BBB with EVM. 

Regards,
Akshdeep