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  1. #1
    New Member New Member mrbhinder is on a distinguished road
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    TC399XE Startup issue

    Hi,

    I am facing an issue with TC399XE startup. The problem is, when i connect the device with Lauterbach and flash my Hex File, it works properly, But when i de-attach the Lauterbach JTAG, my Application does not run after Power On.
    Could anybody please clearify me that what possibly goes wrong on Power On without Debugger attached? is there any configuration which i am missing?

    Best Regards,

    Usman

  2. #2
    Intermediate Intermediate
    Infineon Employee
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    Two possibilities:
    There is no valid BMHD programmed
    The watchdogs are not serviced or switched off.
    The views expressed here are my personal opinions, have not been reviewed or authorized by Infineon and do not necessarily represent the views of Infineon.

  3. #3
    New Member New Member mrbhinder is on a distinguished road
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    Hi,

    Thank you for reply, I am sure BMHD are function properly and about watchdog i am disabling the system watchdog and cpu watchdog and also enabling the endinit protection afterwards as follow:

    SCU_WDTSCON1.U = 0x00000008u; /* disable safety watchdog */
    SCU_WDTSCON0.U = 0xFFFC00F3u; /* enable safety endinit protection */

    SCU_WDTCPU0CON1.U = 0x00000008u; /* disable cpu0 watchdog */
    SCU_WDTCPU0CON0.U = 0xFFFC00F3u; /* enable safety endinit protection */

    do i need to configure another watchdog as well?

    BR

  4. #4
    Intermediate Intermediate
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    Which BMHD value you use? What happens when you start without debugger? Device is always in reset?
    The views expressed here are my personal opinions, have not been reviewed or authorized by Infineon and do not necessarily represent the views of Infineon.

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