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DLPC900: HOLD_BOOTZ(F24)

Uryyy
Expert 1890 points
Part Number: DLPC900

What do you mean bootloader mode? If the bootloader mode is not installed, are there anything of problems?

  • 0
    TI__Expert 4530 points
    Hi Uryyy,

    Please elaborate on your question. This pin holds the controller in boot mode.

    -ykc
  • 0 in reply to ykc
    Expert 1890 points
    Hi ykc

    Thank you for very quick response. The DLPLCR6500EVM user's guide does not describe boot mode switch when firmware or bootloader are written via JTAG. Is there anything case when boot mode is used? Or, should we switch boot mode when firmware or bootloader is writtern in flash?
  • 0 in reply to Uryyy
    TI__Expert 4530 points
    DLPC900 has 2 modes boot mode and application mode. If application is corrupted then if boot mode jumper is installed it will force DLPC900 to stay in boot mode so that application can be programmed.
    Boot mode pin is useful in case something bad happens in field upgrade. There you may not have access to bootmode pin. It is advised to connect this pin and reset pin of controller to your controller so that dlpc900 can be recovered.

    DLPC900 on startup see this pin and stays in bootload mode if asserted.

    -ykc