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Generating HW reset from firmware on the TMS320VC5502

JoAnne
Prodigy 20 points
Other Parts Discussed in Thread: TMS320VC5502

Is it possible to generate a HW reset from the firmware on the TMS320VC5502?  We do not have assess to the RESET line.

We are downloading new firmware to the serial flash and we want to automatically reboot the board to run the new firmware.  Power cycling is not at option.

Is there another way to force the firmware to reload?  SW reset does not reload the firmware.

  • 0
    TI__Mastermind 23785 points

    Have you looked into using Watchdog Timer to generate a RESET? This is in section 3.5.1 Timer Interrupts:

    "The interrupt signal for the Watchdog Timer can be internally connected to the RESET, INT3, or NMI
    signals by setting the IWCON bit of the Timer Signal Selection Register (TSSR) appropriately (see
    Figure 3-6). The DSP will be reset once the Watchdog Timer generates an interrupt if the timer interrupt is
    connected to RESET (IWCON = '01'). A non-maskable interrupt will be generated if the timer interrupt is
    connected to NMI (IWCON = '10'). An external interrupt will be generated when the timer interrupt signal is
    connected to INT3 (IWCON = '11'), but only if the INT3 bit of IER0 is set to '1'."

    Regards.