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Read data from internal memories after reset

Michał Kaszkiel
Prodigy 40 points
Other Parts Discussed in Thread: TMS320C6748

Hi!

I need to write same bytes to DSP internal memory (TMS320C6748 DSP) and read that information after watchdog reset. Is it possible? Or maybe WDT or bootloader reset that memory?

Thanks.

  • 0
    TI__Guru* 83815 points

    Hi Michael

    A watchdog reset on the C6748 is equivalent to the power on reset , so post power on reset/ watch dog reset the internal or external memory contents are not supposed to be retained. Therefore I would not recommend relying on writing a memory bit prior to WDT and expect it to be the same post WDT reset.

    Regards

    Mukul

  • 0 in reply to Mukul Bhatnagar
    Prodigy 40 points

    Thank You for quickly answer.

    That's confirm my tests.

    So, I have another question. I must detect type of reset. I know about support which provide processor, but I need devide resets on two groups: reset evoke by power loss and reset by watchdog. Would You give me some idea how can i do that? Does exists memory which keep data after watchdog reset and erase them after power loss?

    Thanks in advance.