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Software *** Hardware reset of AT89S52

Is this possible if we use hard reset (Logic 1 Pulse with some delay) by using ISR and one Port Pin Connected to RESET Pin? so that Controller can RESET itself by Applying RESET signal by ISR. I mean Software *** Hardware RESET!

AT89S52 can be reset with logic high for 2 machine cycles to RESET PIN.
I used Proteus VSM 7.1 and it shows RESET...
Reset itself by ISR and Port Pin

delay();
RESET_Port_Pin=1;            //Soft Reset to uC by Port Pin
delay();
RESET_Port_Pin=0;
delay();


But in Actual Circuit this Doesn't works.
Without any chip it could be done or not?
I think momentry latching of some type will help?
Please help!

Parents
  • "... you could have others methodes, searching the old threads list ... the watchdog will not help you generate a intended RESET"

    On the contrary - searching the "old threads list" most certainly will reveal plenty of recommendations to use the Watchdog for exactly this purpose!!

    "watchdog will ... generally give out unintended RESETs rather, which should be avoided"

    If that is your experience of watchdogs, then you have not been using them correctly!

Reply
  • "... you could have others methodes, searching the old threads list ... the watchdog will not help you generate a intended RESET"

    On the contrary - searching the "old threads list" most certainly will reveal plenty of recommendations to use the Watchdog for exactly this purpose!!

    "watchdog will ... generally give out unintended RESETs rather, which should be avoided"

    If that is your experience of watchdogs, then you have not been using them correctly!

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