Motherboard LPT 26pin header to LCD 16 header cable pinout

[gillunu]

Ok so I got this Gigabyte mobo with a 26 pin header for LPT insted of the backpanel Dsub 25 pin - that's good - I always hated to get that cable out of the case to plug it in the back. I thought it will be easy to match all pins but these guys are calling the pins different than before.
Here's what I got:
MOBO++++++++++
1-STB-
2-AFD-
3-PD0
4-ERR-
5-PD1
6-INIT-
7-PD2
8-SLIN-
9-PD3
10-GND
11-PD4
12-GND
13-PD5
14-GND
15-PD6
16-GND
17-PD7
18-GND
19-ACK-
20-GND
21-BUSY
22-GND
23-PE
24-NoPin
25SLCT
26-GND

LCD===========
1-Vss =GND
2-Vdd = +5V
3-VBT = Adj Brightnes
4-RS = H-data L-instruction
5- R/W= R/W signal
6-E = chip enable
7-DB0 =data bit 0
8
9
10
11
12
13
14-DB7 = data bit 7
15-NC = baclklight on normal lcd's - I got OLED
16-NC

=============
All I got is the data pins and power can someone translate what is RS and R/W on the mobo's port please - thank you.

[mattcro]

The header pinout is arranged so that a flat ribbon cable can easily be soldered straight onto the DB25 printer connector.

Pin 1 on the cable (and header) goes to pin 1 on the DB25 connector.
Pin 2 (cable) goes to pin 14 (DB25)
Pin 3 goes to pin 2
Pin 4 goes to pin 15
5 > 3
6 > 16
...
...
22 > 24
23 > 12
24 > 25
25 > 13

Basically, one row of the mobo header corresponds to one row of pins on the DB25, and the other row on the header corresponds to the other row on the DB25 but in the opposite direction.

The mobo manual pinout uses abbreviated names for the printer pins:
PDx = DBx (data bits 0-7)
STB- = STROBE
AFD- = AutoFeed

...and so on. Look at LPT pinout documentation to find the proper names from the abbreviations.

For an LCD:
port header => LCD
PD0-7 => DB0-7
STB => E
AFD => R/W
INIT => RS

plus power and contrast connections as per Smartie schematics: http://lcdsmartie.sourceforge.net/circuits.htm

[gillunu]

Thank you for the prompt answer - makes sense - I'll do it this weekend and post results

[gillunu]

Thank you again - it works - I had the 2 RS and RW pins switched.
Cool thing to mention - the OLED display I'm using works even without main power and there is no backlight on it either - 11 wires to connect only and looks great.