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DLP3030Q1EVM: DLPC3030-Q1 Secondary development

hua Zhang
Prodigy 20 points
Part Number: DLP3030Q1EVM
Other Parts Discussed in Thread: DLP3030-Q1, DLPC120-Q1

I use DLPC120-Q1 and DLP3030-Q1 to develop a HUD product, Display Controller (SPI Master) communicates with Piccolo LED Controller through Serial Peripheral Interface (SPI).I found there were some programs with setting brightness, Write Backlight 0xFFFF ,I did it like this，first，Send instruction code：A5 02 01 01 02 00,then,Send instruction code：A5 00 02 FF FF 00 00,the result is no response and No change in backlight.I cann't  solve the problem ,what's wrong with my operation process and practice?    Thank you for help!

  • 0
    TI__Intellectual 2995 points

    Hello - 

    Do you have access to the DLPC120 Control Program SW GUI tool that TI provides? If so, I would recommend using this tool to talk with the Piccolo (via SPI Cheetah Adapter) and referring to the Utilities > Communication > SPI Command Log page to see how a "proper" communication looks at a byte-by-byte level. Now you have a reference for your customized Display Controller (SPI Master) implementation.

    Regards,

    Ross