Linux/DLPDLCR2000EVM: DLPDLCR2000EVM / Raspberry pi 3 b +

collier romain

Part Number: DLPDLCR2000EVM

Tool/software: Linux

(attention my english is not very good) i'm french

Hello, I allow myself to come to you because my display on raspberry p13 + is unstable. I have everything installed as explained. I modified the config.txt file. The display on the projector only appears when I type these lines

sudo i2cset -y 3 0x1b 0x0c 0x00 0x00 0x00 0x13 i 
sudo i2cset -y 3 0x1b 0x0b 0x00 0x00 0x00 0x00 i

I also put these lines in the /etc/rc.local file


I do not have the display on the projector at the start of the raspberry and nothing when I play a video.
But the poster appears 1 minute and then disappears. Do you have a solution.

over 6 years ago

0 Kyle Rakos over 6 years ago

TI__Mastermind 20045 points

Hello Collier,

Could you confirm that after you send the two I2C commands then your display works as intended? Are you asking how to automatically send these commands when the Raspberry Pi starts up?

Thanks,
Kyle

0 collier romain over 6 years ago in reply to Kyle Rakos

Prodigy 30 points

Hello,
Indeed after the sending of the two orders i2c, the display appears but it is not stable. because as soon as I launch a console command, it disappears. but I am interested in launching it at demarage. I already put the command in the /etc/rc.local file, but it does not work

0 collier romain over 6 years ago in reply to collier romain

Prodigy 30 points

If you want a copy of my configuration files, I can send them, give me the name of the files

0 Philippe Dollo over 6 years ago in reply to collier romain

TI__Mastermind 28005 points

Collier,

The correct boot configuration will depend on your system. To start, we want to confirm that the EVM is working as intended. Can you start by connecting only the I2C lines from your Raspberry Pi to the EVM (no video) and sending commands from there? I recommend you try sending commands to set the system to internal test pattern mode. I recommend "Input Source Selection" command (0x0B) and "Test Pattern Select" command (0x11):
www.ti.com/.../dlpu013.pdf

If you can confirm that the EVM is working, then you can compare your setup to this tutorial using the Raspberry Pi:
frederickvandenbosch.be/

I hope this helps.

Best regards,
Philippe Dollo

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Linux/DLPDLCR2000EVM: DLPDLCR2000EVM / Raspberry pi 3 b +