Quote Originally Posted by pedja089 View Post
If you use SERIN, frequent interrupt may cause problem while receiving data. If you use HSERIN you can use interrupt to receive, or interrupt can occur while receiving data, without any problem.
And when using SERIN if Rx pin is pulled low(eg when module is turned off), timeout will newer expire...
My immediate inclination was to try to use the hardware serial port, and use DT_INT RX_INT for the hardware interrupt, but because I don't have the flexibility of inverting the polarity of the in/out with the hardware uart, I was just looking for confirmation that, Yes, I do need inverters on the in and out before feeding the SocketLAN. My brain hadn't gotten around to interrupts yet, but know enough now to think about them right away. Thanks for your reply!