Part Number: TMS320F28379D
Hi,
About a month ago I have asked a question regarding the watchdog timer, but did not get a clear answer.
I have the below set registers. I have the watchdog timer disabled at first, then in SCSR the WDOVERRIDE is set to 0 and the watchdog interrupt is enabled. In this case is the watchdog timer disabled or enabled?
void InitWatchdog(void)
{
asm(" EALLOW"); // Enable EALLOW protected register access
//--- Disable the Watchdog Timer
WdRegs.WDCR.all = 0x0068;
// bit 15-7 0's: reserved
// bit 6 1: WDDIS, 1=disable WD
// bit 5-3 101: WDCHK, WD check bits, always write as 101b
// bit 2-0 000: WDPS, WD prescale bits, 000: WDCLK=OSCCLK/512/1
//--- System and Control Register
WdRegs.SCSR.all = 0x0000;
// bit 15-3 0's: reserved
// bit 2 0: WDINTS, WD interrupt status bit (read-only)
// bit 1 0: WDENINT, 0=WD causes reset, 1=WD causes WDINT
// bit 0 0: WDOVERRIDE, write 1 to disable disabling of the WD (clear-only)
WdRegs.WDWCR.all = 0x0000;
// bit 15-9 0's: reserved
// bit 8 0: FIRSTKEY (read-only)
// bit 7-0 0x00: MIN, minimum service interval - 0x00 is no minimum
asm(" EDIS"); // Disable EALLOW protected register access
//--- Enable the Watchdog interrupt
PieCtrlRegs.PIEIER1.bit.INTx8 = 1; // Enable WAKEINT (LPM/WD) in PIE group #1
IER |= 0x0001; // Enable INT1 in IER to enable PIE group 1
} // end of InitWatchdog()
