Code:
IO Connections for P2
Pin# I/O Pri. func Sec. func Chan Pin func Pin Dir
1 0 IOPort PWM 0 PWM (Out)
14 1 IOPort None
2 2 IOPort StepGen 0 Step/Table1 (Out)
15 3 IOPort None
3 4 IOPort StepGen 0 Dir/Table2 (Out)
16 5 IOPort StepGen 8 Step/Table1 (Out)
4 6 IOPort StepGen 1 Step/Table1 (Out)
17 7 IOPort StepGen 8 Dir/Table2 (Out)
5 8 IOPort StepGen 1 Dir/Table2 (Out)
6 9 IOPort StepGen 2 Step/Table1 (Out)
7 10 IOPort StepGen 2 Dir/Table2 (Out)
8 11 IOPort StepGen 3 Step/Table1 (Out)
9 12 IOPort StepGen 3 Dir/Table2 (Out)
10 13 IOPort None
11 14 IOPort QCount 0 Quad-A (In)
12 15 IOPort QCount 0 Quad-B (In)
13 16 IOPort QCount 0 Quad-IDX (In)
Where :
Pin# = is the equivalent parallel port pin number
I/O = is the pin number on the 26 pin header, see the manual for the board you have
Sec. func = is easy as it is written what function is active for that pin
Chan = the channel for the above function
Pin func = easy, just mind the step/dir and ignore the table thing
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In general, you need the manual for the pinout and the mesaflash --readhmid report to figure pins out.
These are not parallel ports (even those have different modes that vary inputs and outputs, like "out","in", or "X"), these are Field Programmable Grid Arrays, meaning they can be programmed to pretty much everything within reason, so the pins will change, functions will change, etc, etc.
In short, there is no easy way to put all the thousands of pin options/functions into a wizard, especially as we keep asking from Mesa to make new firmware for whatever we happen to be working on at any given time, and they always, always make whatever we ask, no matter how strange it might seem.
So, thank you to Mesa and PCW for the best support on planet Earth.
