I hadn't come across this before so a simple resolve it what I thought was needed... However!! It didn't work and I'm not quite sure why. The thing is, I really need to know..
Problem:
I have two serial sources ( coming from the same device ) One is wireless and the other is hard wired... The switch over works really well... The wireless transceiver is stopped and serial is transmitted via RS485 once plugged in..
But! At the receiving end I have to bring both signals into the same port! The second USART on a pic1845k22...
Here was my first resolve
Didn't work!!!!
I have alredy fixed the issue using two NPN's as makeshift OR gate, But!!! I still want to know why the diodes didn't work!!
Problem:
I have two serial sources ( coming from the same device ) One is wireless and the other is hard wired... The switch over works really well... The wireless transceiver is stopped and serial is transmitted via RS485 once plugged in..
But! At the receiving end I have to bring both signals into the same port! The second USART on a pic1845k22...
Here was my first resolve
Didn't work!!!!
I have alredy fixed the issue using two NPN's as makeshift OR gate, But!!! I still want to know why the diodes didn't work!!