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TMS320F2812: Jump to Bootloader from Application

Zhonghui Xu
Expert 5445 points
Part Number: TMS320F2812


Hi team,

I got  questions from customer.

"1. After setting GPIO F2, F3, F4 and F12 registers to SCI-A boot state, does the chip allow for executing the power on bootloader from software? If yes, what address must be execute to launch the built in bootloader?

2. When generating a reset want to attempt a power on bootloader entry, what is the minimum RESET time to properly reset the chip and enter bootload mode?"

Thank you very much for your help.

Best regards,

  • 0
    TI__Mastermind 45606 points

    Hi Zhonghui,

    Zhonghui Xu said:
    "1. After setting GPIO F2, F3, F4 and F12 registers to SCI-A boot state, does the chip allow for executing the power on bootloader from software? If yes, what address must be execute to launch the built in bootloader?

    After a reset the boot process will run and call the SCI_BOOT function to load from SCI-A. This is discussed further in the Boot ROM Reference Guide: https://www.ti.com/lit/spru095

    Zhonghui Xu said:

    2. When generating a reset want to attempt a power on bootloader entry, what is the minimum RESET time to properly reset the chip and enter bootload mode?"

    Please see section 8.12.3 Reset Timing of the device datasheet for these timing details.

    Best,

    Kevin