50 lines
1.5 KiB
Plaintext
50 lines
1.5 KiB
Plaintext
(this text taken from a message by Bill Farrow, more info coming later)
|
|
<bfarrow@arrow.bsee.swin.edu.au>
|
|
|
|
|
|
The code in LCDproc for the hd4470 LCD controller chips comes from
|
|
"lcdtext" (by Matthias Prinke) or one of the derivatives ("lcdstat4",
|
|
"lcdtime").
|
|
|
|
You might like to get those packages down as well and have a play.
|
|
|
|
LCDproc-0.4 only supports 4 line displays, but LCDproc-0.3.5 runs 2 line
|
|
displays also. A different maintainer is responsible for this version.
|
|
|
|
The pinouts are like so : (From lcdtext)
|
|
|
|
1.1 Connecting the LCD to a printer port
|
|
-----------------------------------------
|
|
|
|
LCD printer port
|
|
Pin signal Pin signal
|
|
|
|
1 GND 18..25 GND
|
|
2 +5V --- *)
|
|
3 Vadj. --- *)
|
|
4 RS 6 D4
|
|
5 RW 7 D5
|
|
6 EN 8 D6
|
|
11 D4 2 D0
|
|
12 D5 3 D1
|
|
13 D6 4 D2
|
|
14 D7 5 D3
|
|
|
|
Getting the supply voltage:
|
|
Use a floppy supply connector, get it from the game port, take some
|
|
diodes and a capacitor and get it from the port's data lines, get it
|
|
from the keyboard connector or whatever you like. Be save to avoid
|
|
short circuit. You need only 3mA at 5V! (if you have the same type
|
|
lcd)
|
|
|
|
Connecting the contrast adjusting pin (Vadj.):
|
|
|
|
(variable resistor)
|
|
.------.
|
|
Vcc ---| 10k |--- GND
|
|
`---^--'
|
|
/|\
|
|
|
|
|
Vadj.
|
|
|