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Thread: TC275 watchdog does not work

  1. #1
    Beginner Beginner lsh9640 is on a distinguished road
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    TC275 watchdog does not work

    Hi I am using TC275 evaluation board and the sample code coming with the product.

    at the below code, which is cpu0 start-up driver
    as you can see, I remove those two lines that disable both CpuWatchdog and SafetyWatchdog.

    So basically Watchdog function is enabled but whenever I downloaded the binary with Trace32 debugger and run it.
    it does not trigger watchdog
    there is no where to disable watchdog whatsoever.

    what could be wrong with my thinking?

    Code:
        
    (...)
        IfxCpu_initCSA((uint32 *)__CSA(0), (uint32 *)__CSA_END(0));     /*Initialize the context save area for CPU0 */
    
        {
            /*CPU and safety watchdogs are enabled by default, C initialization functions are not servicing the watchdogs */
            uint16 safetyWdtPassword = IfxScuWdt_getSafetyWatchdogPassword();
            //IfxScuWdt_disableCpuWatchdog(cpuWdtPassword);
            //IfxScuWdt_disableSafetyWatchdog(safetyWdtPassword);
    
            Ifx_C_Init();           /*Initialization of C runtime variables */
    
            IfxScuWdt_enableCpuWatchdog(cpuWdtPassword);
            IfxScuWdt_enableSafetyWatchdog(safetyWdtPassword);
        }
    
    	IfxPort_setPinMode(&MODULE_P33, 8, IfxPort_Mode_outputPushPullGeneral);
    	IfxPort_setPinLow(&MODULE_P33, 8);
    	
        /*Initialize the clock system */
        IFXCPU_CSTART_CCU_INIT_HOOK();
    (...)
    Sorry my english is not good but I tried to explain as much as I could

    Thanks.

    Best Regards,
    Dongah Electric Componenet R&D Center Research Engineer, Korea
    SIHUN, LEE
    lsh9640@dongah.biz
    82-10-4902-9640
    Last edited by lsh9640; Aug 16th, 2018 at 06:43 PM. Reason: for better understanding

  2. #2
    Advanced Advanced cwunder is on a distinguished road
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    By default when a debugger is connected the watchdogs are disabled. To enable it on the Trace32 by using the following command:

    SYStem.Option WDTSUS [ON | OFF]

    ?????? ?????? 2018_08_16_21_51_48_TriCore_Debugger_and_Trace.png‎   2018_08_16_22_02_38_TriCore_Debugger_and_Trace.png‎  
    Last edited by cwunder; Aug 17th, 2018 at 03:35 AM.

  3. #3
    Beginner Beginner lsh9640 is on a distinguished road
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    thanks man.

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