hi everyone
i'm using an 89c51 with max232 for serial communication. prototype of my circuit on bread board was successful but now after implementing it on PCB(all the circuit and connections are same as i made on bred board) but now the data only reaches the Rx pin of MC and there is no output on port.... i've spent a week on debugging but couldn't find any flaw....plz help me
communication channel is serial port using Hyper terminal.
Sorry for incomplete info..... the data from max 232 successfully reaches the pin # 10 of 89c51 (Rx data pin) but it doesn't reach port 2 of 89c51 (as i've programmed 89c51 to take data output serially from port#2.0,2.1,2.2,2.3 respectively)...... PORT 2.0 to @.3 are acting as output pins...
I hope it's clear now......