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RM57L843: SYSECR software reset, any non-volatile registers surviving software reset

Gunter Schmer
Genius 14312 points
Part Number: RM57L843


Hi,

are there any registers that are non-volatile across a system reset triggered via SYSECR reset bits. A customer needs to have something to communicate from application back to the bootloader.

Thanks,

--Gunter

  • 0
    TI__Mastermind 49120 points
    Hi Gunter,

    Sorry for the late response.

    Asserting system reset does not affect the contents of SRAM modules on the MCU. There are some registers that only get reset on a power-on-reset, but these are for indicating fault statuses. I think your best bet would be to use an SRAM location or the data Flash bank for this purpose.

    Regards,
    Sunil