2-pin SuperSerial

I started coding the serial functions for my Arduino. I applied the concepts described in the previous project log - except I made the data latch on the rising edge except for the falling.

At first I got varying lengths of garbage, but as I refined the functions exchanging data the garbage got to double the length as the word I was transmitting: "test". I found that by shifting the data once to the right fixed it and displayed the text with spaces - or 0xFF - in between. I figured out that the transmission did not close properly causing extra data to be transferred. Fixing this made everything work and all the data was always sent and received correctly!

Oh, except for the fact that the data transfer stopped after a certain amount of data sent too quickly. I'm not yet sure if this is the transmitter or receiver, but that's the next step. Its probably some if block I did or didn't put where I should have... Well anyways after that I'll speed up the heck out of it and apply it to my #Open Source Graphics Card.

I have a basic idea of how this could work. since clocks make things faster, lets implement that.

SERIAL INITIALIZATION

Pins set accordingly. Outputs set high. Serial port waits for a low on their inputs of a certain duration (will figure this out later). The input becomes the DATA_IN and the output becomes CLK_OUT

SERIAL TRANSMISSION

Transmitting micro sends a low pulse on the output and waits for a clock signal from the receiver. the clock's rising edge updates the data output and the falling edge latches the data.

This should work! I'll update the project after some code and testing.