Quote Originally Posted by Bruce View Post
Why not just use one of the OPEN baud modes? This leaves the TX pin set to input
after the transmission is complete.
With OPEN transmission does not works, nothing happens, I think that mode is for direct connection to the PC.

I'v solved the mistery of the broken PICs (just a programmer bug), anyway if someone have a better idea to share the MAX233, would be appreciated.

Thks