seiko l167100j000 LCD
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Hello,
Is it possible to drive the seiko L167100J000 LCD from the stamp, (Board of
Education) without an LCD controller chip ?
(I'm assuming the LCD does not have a controller, going by the SEIKO web page).
If so, any info on how to connect it, and details on the software would be be
great.
The only thing I found was
http://www.seiko-usa-ecd.com/lcd/products/char_mods/l167100j000.html
where on the bottom of the page it lists the address locations as
Address Locations:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Line 1 80 81 82 83 84 85 86 87 C0 C1 C2 C3 C4 C5 C6 C7
Mike
Is it possible to drive the seiko L167100J000 LCD from the stamp, (Board of
Education) without an LCD controller chip ?
(I'm assuming the LCD does not have a controller, going by the SEIKO web page).
If so, any info on how to connect it, and details on the software would be be
great.
The only thing I found was
http://www.seiko-usa-ecd.com/lcd/products/char_mods/l167100j000.html
where on the bottom of the page it lists the address locations as
Address Locations:
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16
Line 1 80 81 82 83 84 85 86 87 C0 C1 C2 C3 C4 C5 C6 C7
Mike
Comments
like this LCD is a Hitachi HD44780 equipped ... just going by the pinouts on the
data sheet which match up with the diguru web page.
I hooked it up to a breadboard, used one of the programs that came with the
B.O.E, and no output.
I did alter the source code a bit, as I connected pins 3-14 from the lcd to
ports 0-11. I used port 15 for the RS pin, and port 13 for the E(nable) pin.
I'm wondering if the LCD is dead, and how to test it ?
Mike
>Found this site, http://www.diguru.com/embedded/lcd-faq.htm, it looks
>(?????) like this LCD is a Hitachi HD44780 equipped ... just going by the
>pinouts on the data sheet which match up with the diguru web page.
>
>I hooked it up to a breadboard, used one of the programs that came with
>the B.O.E, and no output.
>
>I did alter the source code a bit, as I connected pins 3-14 from the lcd
>to ports 0-11. I used port 15 for the RS pin, and port 13 for the E(nable) pin.
>
>I'm wondering if the LCD is dead, and how to test it ?
>
>Mike
Mike -
Here are the pinouts for that Seiko LCD:
1 17 VSS GND
2 18 VDD Power supply voltage + 5 V
3 19 VLC Liquid crystal driving voltage
4 20 RS L: Instruction code input. H: Data input
5 21 R/W L: Data write from MPU to LCM. H: Data read from LCM to MPU
6 22 E Enable
7 23 DB0 Data bus line
8 24 DB1 Data bus line
9 25 DB2 Data bus line
10 26 DB3 Data bus line
11 27 DB4 Data bus line
12 28 DB5 Data bus line
13 29 DB6 Data bus line
14 30 DB7 Data bus line
15 31 VA * Anode
16 32 VC * Cathode
Regards,
Bruce Bates
Thx, I have already have that info.
Have you used this LCD or any others ?
Any hints / tips / tricks / gotcha's, to make it work ?
I was only using VDD for the "driving voltage" (pin 3), other pins connected
directly to the ports.
Mike
--- In basicstamps@y..., Bruce Bates <bvbates@u...> wrote:
>
> Here are the pinouts for that Seiko LCD: