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TDA3: EMU signals

Erwin Hollensteiner
Prodigy 160 points

Part Number: TDA3

Dear support,

I am using the TDA3 chip on custom made hardware with a XDS560 debugger. Currently I am having a problem with the DSS driver; when I set the enable bit in the DSS_VP_CONTROL register the
debugger connection crashes.
In the hardware there are the signals JTAG_EMU2, JTAG_EMU3, JTAG_EMU4 connected to VOUT1_D8, VOUT1_D7 and VOUT1_D6. Maybe the crash has somthing to do with the EMU signals. Could you please
let me know what I need to do to disable the EMU signals.

Best regards
Erwin

  • 0
    TI__Genius 14100 points
    Erwin,


    Can you send crash log? What does it say when the connection terminates?

    Also, has your custom board gone through a schematic review by TI and the usual sanity checks?

    Can you try forcing the VOUT signals on the pins via the CTRL_CORE_PAD_VOUT1_D6 muxmode register (set it to 0x0: vout1_d6 in the driver/device tree).

    Let us know if that helps,

    thanks,
    Alex
  • 0 in reply to Alex Bashkov
    Prodigy 160 points
    Hi Alex,

    Thanks for your quick response;
    There was a problem in my display driver, which is fixed now; it had nothing to do with the EMU signals.

    Thanks and best regards
    Erwin