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RFBI

rocky luo
Prodigy 10 points

Hello

    I'm trying to bring up RFBI in RFBi mode. I've configured the module in accordance to application notes in processor reference manual,

In accordance to data-sheet of OMAP4430 issuing to RFBI registers CMD/PARAM//READ, but  I can't  get changes on data lines and  A0 WE RD CS0  line .

I need your help

     Thanks &Best Regard

              Rocky

    2011.12.9

  • 0
    Intellectual 695 points

    Well, If you have followed the sequence on the TRM, it should work.

    Are you using linux kernel? If so, most of the RFBI support should be there already and you would only need to create a driver calling functions .
    You only need to call omapdss_rfbi_display_enable(...) and then you could use functions like omap_rfbi_write_command(...) and/or omap_rfbi_read_data(...) to send the CMD/PARAM//READ you want.

    If you are still not seeing activity on the RFBI lines, double check that you have configured the PADs configuration correctly (check Control Module section on OMAP4 TRM).

    Also once you get some activity on RFBI lines, you might want to check the polarity of the lines against your RFBI panel.