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Original question:

DLPDLCR2000EVM: DLP2000, DLPC2607, DLPA1000

DLPDLCR230NPEVM: Create custom board with HDMI input for DLPDLCR230NPEVM

Romain Quesada
Prodigy 30 points
Part Number: DLPDLCR230NPEVM
Other Parts Discussed in Thread: DLPDLCR2000EVM, , DLPC3436, MSP-EXP430F5529LP, DLPC3433, TIDA-00325

Hello everyone.

As I explained in this post (https://e2e.ti.com/support/dlp-products-group/dlp/f/dlp-products-forum/1166062/dlpdlcr2000evm-dlp2000-dlpc2607-dlpa1000), I want to create a custom board that could help me to use the EVM as a second screen. 

In order to do so, I'd like to know if this possible with this EVM (DLPDLCR230NPEVM) instead of the previous one (DLPDLCR2000EVM). 

I'd like to mention that I read this topic (https://e2e.ti.com/support/dlp-products-group/dlp/f/dlp-products-forum/1125588/dlpdlcr230npevm-connecting-directly-to-a-pc-mac) that gave me additional information.

First, I'd like to say that my evaluation module DLPDLCR230NPEVM is working perfectly fine with my Raspberry Pi 3B.

Secondly, I would like to keep the same components I chose previously for my project. That's where I need your advices.

If I'm not mistaken, DLPC3436 sends video with the format RGB888 as well as the previous Display Controller (DLP2607), so IT6801 would still work as a HDMI to RGB888 convertor.

I'd like to use a MSP430 from your suggestion, so I chose this microcontroller : MSP-EXP430F5529LP (https://www.digikey.fr/fr/products/detail/texas-instruments/MSP-EXP430F5529LP/4311683). Does it seem to be a good option ?

I didn't chose any EDID yet so I'll use a standard one.

Do you think this project could work as fine with DLPDLCR230NPEVM as it should have worked with DLPDLCR2000EVM ? Do I need to add more component to make it work ?

Like last time, since english is not my first language, let me know if you want me to rephrase it or if I need to give further information.

Best regards,

Romain.

  • 0
    Prodigy 30 points

    Moreover, I wanted to add that, for now, the EVM is powered by a power supply with an homemade cable so I'd like to know if this power supply (https://fr.rs-online.com/web/p/adaptateurs-ac-dc/1753313) is usable in your opinion.

    Best regards,

    Romain.

  • 0 in reply to Romain Quesada
    TI__Expert 5310 points

    Hello Romain.

    We did not have this use case in mind for this EVM so it will be a lot of work. We haven't  tested the EVM in this manner even though the chipset has the capability to use the HDMI setup.

    We intended for the Raspberry Pi to send commands and video data to the controller on the EVM. Do you intend to remove the Raspberry Pi all together and just have the ITE6801 board to interface directly with the EVM? That is something TI hasn't done.

    The team can look into a MSP suggestion.

    I want to reiterate that this is not something TI has looked into. There would be limited support as most knowledge comes from the current existing systems. With this application TI can't ensure that this will work as expected.

    Regards,

    John 

  • 0 in reply to John McKnight
    Prodigy 30 points

    Hello John.

    John McKnight said:
    We intended for the Raspberry Pi to send commands and video data to the controller on the EVM. Do you intend to remove the Raspberry Pi all together and just have the ITE6801 board to interface directly with the EVM? That is something TI hasn't done.

    Yes, that's exactly what I would want to do.

    I understand that since this hasn't been done, you don't have much information on the matter. I'm aware that you won't have all the answers to my questions but that's fine !

    I'm waiting for your opinion on the MSP suggestion.

    Romain Quesada said:
    Moreover, I wanted to add that, for now, the EVM is powered by a power supply with an homemade cable so I'd like to know if this power supply (https://fr.rs-online.com/web/p/adaptateurs-ac-dc/1753313) is usable in your opinion.

    Do you have any information on this power supply matter please ?

    Thank you for the time and effort !

    Best regards,

    Romain.

  • 0 in reply to Romain Quesada
    TI__Genius 12575 points

    Hello Romain,

    Romain Quesada said:
    I'm waiting for your opinion on the MSP suggestion.

    Given that your use case is outside of our scope of support and that we are not sure what role the MSP would be performing, it is difficult to give you an answer. However, other DLP reference designs such as the TIDA-01571 (using the DLPC3433) provide examples for interfacing the micro-controller with a DLP platform.

    Romain Quesada said:
    Do you have any information on this power supply matter please ?

    So long as the power supply meets the requirements laid out in Section 6 of the 230NP EVM User's Guide, the supply should work well with the EVM. The following has been copied from the guide:

    External Power Supply Requirements: • Nominal Output Voltage: 5 VDC • Minimum Output Current: 3 A; Maximum Output Current: 4 A • Efficiency Level: VI

    Please exercise extreme caution when using a homemade cable of any kind.

    Regards,

    Austin

  • 0 in reply to Austin Snyder
    Prodigy 30 points

    Hello Austin,

    Thank you for your time and answers.

    Austin Snyder said:
    Given that your use case is outside of our scope of support and that we are not sure what role the MSP would be performing, it is difficult to give you an answer. However, other DLP reference designs such as the TIDA-01571 (using the DLPC3433) provide examples for interfacing the micro-controller with a DLP platform.

    I would like to use it like this reference design TIDA-00325 (https://www.ti.com/tool/TIDA-00325). This block diagram explains it better than I can : 

    Thank you for the other reference design, it will help !

    It seems that the power supply I chose meets the requirements, so that's good.

    Austin Snyder said:
    Please exercise extreme caution when using a homemade cable of any kind.

    I'll be sure to be careful when using it, thank you for the concern.

    Best regards,

    Romain.