Hello. I'm quite new to those things, but I know the basics of programming AVR chips. I am looking for a very simple library, that would just send MIDI data over a specified pin as fast as possible. I am planning to make a MIDI sequencer, but i would like to avoid arduinos and such, because of the number of instruction it takes to make the same thing as port manipulation can do in one. I would also like to create my own custom PCB, so that would push me away from arduino boards even more. Also I want to use the standard DIN connector instead of sending data over USB.
Thanks for your replies and I apologize, if my question seems to be too much dumb.