DLPDLCR3310EVM: Removing light-engine or alternative EVM without light engine
Part Number: DLPDLCR3310EVM
I was looking for a good DLP EVM and found this DLPDLCR3310EVM. My application for, research and academic purpose, suits the specifications of DLPDLCR3310EVM without a light engine. I looked on
TI E2E™ support forum but not got the exact answer. Can you please suggest to me possibilities to operate DLPDLCR3310EVM without a light engine? Can I easily control DMD through FPGA in the scenario of no light engine?
University of Glasgow
Welcome to DLP forum and thank your interest in DLP technology.
The firmware for DLP3310 EVM uses DMD and an optical actuator in the optical engine to create a 1080P image. Driving directly DMD without actuator will not give you the correct result.
Could you please details about your requirement so that we can suggest the best EVM for your application?
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In reply to Vivek Thakur:
Thanks for your response. Following are our main requirements:
1) Price, resolution, and pattern rate, binary (Max): Similar to DLP3310
2) Operate from USB interface or any other standard interface of a computer running Ubuntu
3) Laser experiments need DMD without a light engine
Hope for your expert suggestion in relation to our application requirements.
In reply to Mumtaz ALI:
The DLP4710EVM-LC (1080p) or the DLP3010EVM-LC (720p) would fit your needs very well.
I hope this helps.
In reply to ChristopherSmith:
Hi Chris,Thanks for sending useful information. The board DLP4710EVM-LC looks more related to our work. I have some queries related to DLP4710EVM-LC:1) Can we easily increase the pattern rates from 1440 Hz if we reduce the resolution or any other way? 2) Is the version of Ubuntu important to send commands to board DLP4710EVM-LC through USB interface?3) I am trying to find the link which highlights the possibility and way to remove the light engine from DLP4710EVM-LC?4) For our laser experiments with DMD (without a light engine), do we need to make changes in the firmware of DLP4710EVM-LC?
We will review your questions and get back early next week.
I hope that the board DLP4710EVM-LC will be sufficient for our experiments and your response will definitely help us.
Let me step in and attempt to answer some of your questions.
Regarding #2, you asked about using Ubuntu to drive the DLP4710-LC EVM. The DLP4710-LC EVM is driven via a Cypress chip with interfaces with the USB port on the system. The Light Control GUI which supports this EVM normally is Windows Only (https://www.ti.com/tool/DLPDLC-GUI). If you want to drive the system using Linux, you will need to do two things:
1) You will need to find a way to drive the Cypress USB chip via a Linux driver. I'm not aware if such a thing exists, as all of our Cypress-enabled software is Windows based.
2) You will need to install the Python-based DLPC-API https://www.ti.com/tool/DLPC-API which is a API with the commands used to control the DLP4710-LC EVM. Of course, in order to make proper use of this API you will need the Cypress USB chip to work on your Linux system.
We do not have any official support for the above. Unfortunately, there is no DLPDLC-GUI version for Linux systems.
Regarding #3 and #4, the DLP4710-LC EVM will refuse to boot in normal conditions if the LEDs are not connected. In order to boot without the LED connections, you would need modified EVM firmware.
In reply to Philippe Dollo:
Thanks for sending the information.
I have checked the information on the internet for Cypress chip driver for Linux and found some source files. I will check those.
As I need modified EVM firmware, can you please share information that how I get this modified firmware?
Hope that some information shared about the methods to increase the frame rate from 1440 Hz and the steps of removing the light engine.
Could you please answer following questions:
1. Could you please confirm that you will be using only one laser (monochrome), not multiple wavelength?
2. The laser will be always on, you would be modulating light using DMD only.
1-bit Frame rate : The DLP4710EVM-LC uses the DLP4710DMDLC DMD and DLPC3479 controller. The 1-bit pattern rate is limited by the controller. It can not be increased beyond that.
Please review the DLPC3479 datasheet and programmer guide for details about driving the DMD chipset.
Thanks for sending useful information.
Our application will use single laser (1550nm or 1310 nm) and DMD will be used for modulation (SLM). Is there any restriction on a specific wavelength of laser that we can use with the DLP4710 DMD?
The frame rate and the datasheets of the DLPC3479 controller are fine and good for running but if we remove the light engine of the board then the booting will be the issue.
I can easily download the DLPC-API, default firmware of EVM, and sample code of MSP430 on your website. I am trying to find how the modified firmware can be generated to successfully boot the EVM without a light engine.
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