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I stop feeding watchdog in TPS65381,why dosn't it send out reset signal?

Jiaming Sun
Expert 1300 points
Other Parts Discussed in Thread: TMS570LS3137, HALCOGEN

Hi,all      

   I use the code in project of NoRTOS_CCS_RM46  running on TMS570LS3137 , then I set the breakpoint in my projecet and debug other code ,the program stops at  the breakpoint ,but the watchdog dosn't reset TMS570, then I doubt watchdog dosn't work ,so I delete the  statement ecmpSendWdgAnswer();then TPS65381 still dosn't send out reset signal .Why ?Does the TPS65381 not run to right state?Hope to get answer ,thanks a lot.

  • 0
    TI__Genius 9015 points

    Hello Jiaming,

    I have forwarded your question to one of our experts.  Due to the year-end holidays and vacations, There may be a delay in the response.

  • 0 in reply to John Hall
    TI__Mastermind 22715 points

    Jiaming,

    When you use a RM (little endian)project on a TMS570 device (big endian), you need to check if the peripheral control registers are configured correctly. In this case, if the SPI driver source code is generated by HALCOGEN, you need to re-generate the driver because the addresses for SPI transmit and receive registers are different in big endian.

    Thanks and regards,

    Zhaohong

  • 0 in reply to Zhaohong Zhang
    Expert 1300 points

    The SPI driver is generated by HALCOGEN for TMS570LS3137,I just use ecmp_if.c and ecmp.c

  • 0 in reply to Jiaming Sun
    Expert 1300 points

    Anybody know my problem?I want to know why I set the breakpoint ,the watchdog in TPS65381 dosn't send reset signal.Or is there project for TMS570LS3137 feeding watchdog in TPS65381?

  • 0 in reply to Jiaming Sun
    Expert 2115 points

    Have you put the TPS65381 into Active mode? By default you will configure it in Diagnostic mode, whereby no resets will be issued. Unless you've written the correct register to enable active mode, then it wont reset.

  • 0 in reply to Mathew Maher49
    Expert 1300 points

    How to put TPS65381 to Active mode?I do the test below

         switch(notification)
         {
             case 4 :
              switch (WDWindow)
              {
              /** send three answers during open window */
              case ECMP_WINDOW_OPEN  :
               WdgFailCount = ecmpGetWdgFailCount();

    I find the WdgFailCount is always 7 ,so I change it to WdgFailCount = 0;then TPS65381 resets TMS570LS3137,then how to stop the watchdog in TPS65381?I power cycle TPS65381,but watchdog still work ,and the feeding watchdog code seems don't work ,TMS570LS3137 keeps being reset

  • 0 in reply to Jiaming Sun
    TI__Genius 13810 points

    Here is what I think:

    For whatever reasons, the TPS65381 stays in safe mode in your case. You can send command from MCU to the TPS65381 to find the current state:

    ecmpIfGetRegister(ECMP_SAFETY_STATUS5)

    Regards,

    Haixiao