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TMS320C28346: How to disable the XREADY function in boot rom

Joe Ji
Expert 4370 points

Part Number: TMS320C28346

Hi Expert

The GPIO34 is used as XREADY pin in Boot rom by default, but this setting will cause communication fail due to XREADY pulled low, customer want to know whether there is any changes can be made to select GPIO34 as GPIO in Boot rom, so that to avoid the communication failure.

Thanks

Joe

  • +1
    TI__Guru* 86150 points

    Joe,

    Looking at the BROM source, XREADY function on GPIO34 is hard coded into the XINTF parallel option.  The only other option I can think of is that customer could create their own bootloader and download it across one of the other boot options, like serial loader, that configures the XINTF differently and then uses XINTF to download the bulk of the data/program.

    Best,

    Matthew