Hi, One correction: In case 2), there should only be one place: /opt/tinyos-2.1.2/tos/lib/tosboot/msp430/HardwareC.nc:57: WDTCTL = 0;
Sorry about the error. On Fri, Oct 26, 2012 at 6:39 PM, Xiaohui Liu <[email protected]> wrote: > Hi everyone, > > My program is reset some time after a node boots up. After the PUC reset, > IFG1 is found with WDTIFG bit set, indicating the watchdog timer triggers > the reset. This can happen under two cases: > 1) Watchdog timer expiration when in watchdog mode only. But when WDTCTL > is read out, the lower byte is 0x80, showing WDTHOLD bit is set to 1 and > watchdog timer is stopped. > 2) Watchdog timer security key violation. There are two places: > /opt/tinyos-2.1.2/tos/lib/tosboot/msp430/HardwareC.nc:57: WDTCTL = 0; > /opt/tinyos-2.1.2/tos/lib/tosboot/msp430/ExecC.nc:53: WDTCTL = WDTPW + > WDTCNTCL; > But neither component HardwareC nor ExecC is used. There is no place in my > program to change the default WDTCTL setting, which is disables as shown in > /opt/tinyos-2.1.2/tos/platforms/telosa/PlatformP.nc: WDTCTL = WDTPW + > WDTHOLD; > > Can anyone please help me locate what is causing this strange reset? > > -Xiaohui Liu > TelosB > T2.1.2 >
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