In one of my projects where I use 89v51rd2 microcontroller, I connect one O/P pin to Electric AC bell through relay. My problem is when reset during switch ON, my O/P pin goes high and come down thus generating a pulse which the bell rings unwantedly. I want to avoid this unwanted ringing till my program gets control. Can anyone please suggest a solution?
Thanks. You solved my problem.
This really has nothing to do with Keil software tools!
For many & detailed discussion on driving relays from 8051/8052/etc and derivative processors, go to http://8052.com and search for "Relay"...
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