??? 06/07/06 13:46 Read: times |
#117951 - not noise supression Responding to: ???'s previous message |
So, stray noise affected RESET was still coming. Since I had a port pin free in 89C51, I used the same to control CLR input of one shot. With this, Pulse generation of one shot gets blocked until 89C51 decides what to do next and then releases CLR input. With this, the system is working consistently, independent of cable length.
You have not implemented any noise supression, what you have implemented is ringing supression. Erik |