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changli
changli
Associate II
December 30, 2014
Question

Does STM32F429 support SPI RGB Serial Interface?

  • December 30, 2014
  • 3 replies
  • 947 views
Posted on December 30, 2013 at 14:52

I found a LCD with OTA5182A driver in SPI & RGB interface. However its RGB is serial RGB not parallel RGB in STM32F429. Is there a way to allow the LCD controller to work with STM32F429 inside lcd display?

#interface-anything-to-anything
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    3 replies

    Andrew Neil
    Andrew Neil
    Super User
    January 1, 2014
    Posted on January 01, 2014 at 11:18

    So it goes back to just a standard interfacing problem:  

    http://www.8052.com/forum/read/160143

    A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
    Andrew Neil
    Andrew Neil
    Super User
    December 30, 2014
    Posted on December 30, 2013 at 19:51

    The STM32's SPI neither knows nor cares anything about the meaning of the data it transfers - so you can program it to carry whatever data you like!

    A complex system that works is invariably found to have evolved from a simple system that worked.A complex system designed from scratch never works and cannot be patched up to make it work.
    changli
    changliAuthor
    Associate II
    December 31, 2014
    Posted on December 31, 2013 at 16:56

    The problem is that serial RGB has only 8-bit data line, the parallel has 3*8 data lines. The LCD control will be different. The Discovery board connected 24 data lines from LCD display. And there is no frame buffer (RAM) in serial RGB LCD display. 

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