Compiler/TMS570LS3137: tps65381-TMS570

Hello Whong,

You got the returned value: 7, which means there is no issue with the SPI communication. The TPS65x is in diagnostic state (7). 

The code should not get stuck at this location since the returned value = 7:

while (ecmpIfGetRegister(ECMP_SAFETY_STATUS5) != 7); 

Thank you 

Now my program can run, but the watchdog doesn't work.

void rtiNotification(uint32 notification)
{
/* enter user code between the USER CODE BEGIN and USER CODE END. */
/* USER CODE BEGIN (9) */
uint16_t WdgFailCount;
switch(notification)
{
case 4:
switch (WDWindow)
{
/** send three answers during open window */
case ECMP_WINDOW_OPEN :
WdgFailCount = ecmpGetWdgFailCount();
if(WdgFailCount == 0)
{
switch (Curr_Sta)
{
case 0:
if(ecmpEnableWdg()) Curr_Sta++;
ecmpLockRegisters();
break;
case 1:
Curr_Sta++;
break;
default:
break;
}
}

//

WdgFailCount = ecmpGetWdgFailCount();      I Set breakpoints, WdgFailCount=7

but my program can run regular.the watchdog doesn't work.

void InitWatchDog(void)
{
uint16_t OPEN_WINDOW_CONFIG = 40U;
uint16_t CLOSE_WINDOW_CONFIG = 15U;

// _mpuInit_();
// spiInit();
ecmpInit();

if(ecmpIfGetRegister((uint16_t)ECMP_SAFETY_STATUS5) != 7U)
{
/*TPS65381 does not stay in diagnostic state.*/
while(1)
{ /*do nothing*/}
}
ecmpWdgWindowConfig(OPEN_WINDOW_CONFIG, CLOSE_WINDOW_CONFIG);
TrgPulseOpen = ((uint32_t)OPEN_WINDOW_CONFIG*1000u)/2u;
TrgPulseClose = (((uint32_t)OPEN_WINDOW_CONFIG*1000u)/2u) + (((uint32_t)CLOSE_WINDOW_CONFIG*1000u)/3u);
/* select desired WD mode - time in mu seconds */

rtiEnableNotification (rtiNOTIFICATION_COMPARE2);

WDWindow=ECMP_WINDOW_OPEN;/*watchdog window is open.*/
rtiREG1->CMP[2U].COMPx = TrgPulseOpen;/*write to the open window in the middle of Topen*/
rtiREG1->CMP[2U].UDCPx = TrgPulseClose;/*write to the close window at 1/3 of Tclose*/
rtiStartCounter(rtiCOUNTER_BLOCK1);

return ;
}

void ecmpInit(void)
{
while (ecmpIfGetRegister(ECMP_SAFETY_STATUS5) != 7);

/* Stay in Diagnostic State and configure SAFETY_CHECK_CONTROL register */
ecmpIfSetRegister(ECMP_SAFETY_CHECK_CONTROL, 0x17);

ecmpIfSetRegister(ECMP_SAFETY_FUNCTION_CONFIG, 0xE4);

/* Clear Status Innformation */
ecmpIfGetRegister(ECMP_VMON_STATUS1);
ecmpIfGetRegister(ECMP_VMON_STATUS2);
ecmpIfGetRegister(ECMP_SAFETY_STATUS1);
ecmpIfGetRegister(ECMP_SAFETY_STATUS2);
ecmpIfGetRegister(ECMP_SAFETY_STATUS3);
ecmpIfGetRegister(ECMP_SAFETY_STATUS4);
ecmpIfSetRegister(ECMP_SAFETY_ERROR_STATUS, 0x00);
}

I found the tps65381  always ecmpIfGetRegister(ECMP_SAFETY_STATUS5) = 7;

I already delete 

ecmpSendWdgAnswer();
 ecmpSendWdgAnswer();
ecmpSendWdgAnswer();

  but  the tps65381 always ecmpIfGetRegister(ECMP_SAFETY_STATUS5) = 7;