SERIN and SEROUT

[Archangel]

Hello CumQuaT,
Welcome to the forum.

Anyone have some advice?

You could start by telling us what kind of problem you are having . . . DOA . . . ?
A couple of things, DEFINE OSC 4 near the top of your code.
If you are not using analog on PortA add cmcon = 7 to disable the comparators there so it doesn't trip you later.
Set up your Ports as high or low before setting your TRIS registers, and do not skip setting those.

'a config statement should go here unless default config is just right
    DEFINE OSC 4
    cmcon = 7
    PortA = 0
    PortB = 0 set all output latches low
    TrisA = %00000000 'set PortA as all outputs
    TrisB = %11100000 '5,6,7 as inputs all others as outputs
Main:
    ' . . . . your code goes here
    goto Main
end

EDIT: Serial data, True idles high, and wants a pull up resistor on the data line to 5v +
Inverted idles LOW and wants a resistor pulling to logic LOW or ground.