• State
  • Locked Locked
  • Replies 3 replies
  • Subscribers 98 subscribers
  • Views 280 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

6474 watchDog

majid mechael
Prodigy 205 points

hello

i am trying to configure the timer to act as watch Dog in order to reset the core ,i succeed to do  so.

when the watch dog reaches the timeout it reset the core ,but the problem is that the watch dog can't be reconfigured because  the flag WDEN in the WDTCR register can't be set to 1 any more .

in the user manual they mentioned that i need hardware reset i order to apply the watchdog again ,How can i do that ?

what is the difference between core reset and hardware reset ?

thanks

  • 0
    Prodigy 205 points

    please help i am still stuck with this problem

  • 0
    TI__Expert 6815 points

    Majid,

    I believe by hardware reset the user guide is talking about warm reset. Please refer to the C6474 data manual to understand the difference between warm reset and CPU reset. The details are in Table 7-18 Reset Types. You can see that the initiator for this reset is the XWRST pin.

    At this stage the watchdog timer will still be disabled. You need to put it in pre-active state before you activate the timer again. Let me know if this helps.

  • 0 in reply to Aditya
    Prodigy 205 points

    thank you Aditya for you answer.

    i did go over the warm reset and now it much more clearer .

    but that didn't help me in my main problem because i can't do such reset (warm reset) .

    i forget to mention that i am using the evm320c6474