parallel LCD''s PITA
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Posts: 46,084
I have got the exact same controller chip as you and it works fine with
standard Hitachi commands, I finnally figured out my problems with the
contrast pot, but you need a message displayin to even see if that's
your prob. Just download the code from the parallax website and then run
it on your stamp, after hooking up everything to their specs, then mess
with the pot and get your message.
Here's the link:
http://www.parallax.com/Downloads/Documentation/sw/exp/11_Basic_LCD_Demo
nstration.pdf
-Mike
Original Message
From: chicbears11 [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=iDjmx9z7IVbjLKBWOElTQvlLfmx9k4WDesIfqrcZ5J3Nu80AZxfTPwJNa1lt2cUTsvLQRDthYw]buht_krak@s...[/url
Sent: Sunday, April 20, 2003 12:36 PM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] Re: parallel LCD's PITA
I did hook up the contrast. I do have control of it. But am not
certain where it should be. Should I have all the "blocks" across
line 1?
With enabling Line 2 shouldn't these blocks appear there as well?
As far as being Hitachi compatible....all the pinouts/labels are the
same so I assumed as much (insert *** jokes here!).
The controller is listed as a KS0066UP-00 which on the datasheet
seems to match the few examples I've seen.
Am I right with the OUTh for outputting data?
I've set pin 8-15 as outputs and p15 is connected to p15 on the lcd
(D7).
My local suppliers seem to want to charge $90 for a serial lcd. I
didn't appreciate the guys....consumerism/capitalism??
Anyhow, list prices off the net (although in US) are considerably
cheaper....almost after exchange rates....
I did go and pick up a serial to parallel IC as a plan later. I'd
love to be able to get this working cuz this one only cost $20.
--- In basicstamps@yahoogroups.com, "Mike Dillon" <laxboy687@e...>
wrote:
> You might try hooking up the contrast line to the middle post on a
pot,
> and then one of the outside posts to vss. It sounds like exactly
what I
> had going on, and that fixed it. But mine was Hitachi compatible.
>
> -Mike
>
>
Original Message
> From: chicbears11 [noparse][[/noparse]mailto:buht_krak@s...]
> Sent: Saturday, April 19, 2003 11:52 PM
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]basicstamps] parallel LCD's PITA
>
> I picked up a parallel LCD and it's a major Pain in the Smile!
>
> It's a Tianma....and I'm not certain what exactly my order of
> operations should be.
>
> I have the inputs of the LCD connected to the top 8 outputs of my
> stamp. So I should use OUTH as a command (eg. OUTH = %
> 00000001 'resets display?).
> I have R/W tied low; RS to out4 (on bs2) w/pull-up resistor; E to
> out6 (on bs2) w/pull-up resistor.
>
> So....with the outh puttin out the bits that I want....do I pulse E
> for the LCD to take it?
>
> I can't seem to get more than the first line solid with
> blocks...luckily that happens by just applying power!! haha
>
> Thanks
>
>
>
> To UNSUBSCRIBE, just send mail to:
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> and Body of the message will be ignored.
>
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standard Hitachi commands, I finnally figured out my problems with the
contrast pot, but you need a message displayin to even see if that's
your prob. Just download the code from the parallax website and then run
it on your stamp, after hooking up everything to their specs, then mess
with the pot and get your message.
Here's the link:
http://www.parallax.com/Downloads/Documentation/sw/exp/11_Basic_LCD_Demo
nstration.pdf
-Mike
Original Message
From: chicbears11 [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=iDjmx9z7IVbjLKBWOElTQvlLfmx9k4WDesIfqrcZ5J3Nu80AZxfTPwJNa1lt2cUTsvLQRDthYw]buht_krak@s...[/url
Sent: Sunday, April 20, 2003 12:36 PM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] Re: parallel LCD's PITA
I did hook up the contrast. I do have control of it. But am not
certain where it should be. Should I have all the "blocks" across
line 1?
With enabling Line 2 shouldn't these blocks appear there as well?
As far as being Hitachi compatible....all the pinouts/labels are the
same so I assumed as much (insert *** jokes here!).
The controller is listed as a KS0066UP-00 which on the datasheet
seems to match the few examples I've seen.
Am I right with the OUTh for outputting data?
I've set pin 8-15 as outputs and p15 is connected to p15 on the lcd
(D7).
My local suppliers seem to want to charge $90 for a serial lcd. I
didn't appreciate the guys....consumerism/capitalism??
Anyhow, list prices off the net (although in US) are considerably
cheaper....almost after exchange rates....
I did go and pick up a serial to parallel IC as a plan later. I'd
love to be able to get this working cuz this one only cost $20.
--- In basicstamps@yahoogroups.com, "Mike Dillon" <laxboy687@e...>
wrote:
> You might try hooking up the contrast line to the middle post on a
pot,
> and then one of the outside posts to vss. It sounds like exactly
what I
> had going on, and that fixed it. But mine was Hitachi compatible.
>
> -Mike
>
>
Original Message
> From: chicbears11 [noparse][[/noparse]mailto:buht_krak@s...]
> Sent: Saturday, April 19, 2003 11:52 PM
> To: basicstamps@yahoogroups.com
> Subject: [noparse][[/noparse]basicstamps] parallel LCD's PITA
>
> I picked up a parallel LCD and it's a major Pain in the Smile!
>
> It's a Tianma....and I'm not certain what exactly my order of
> operations should be.
>
> I have the inputs of the LCD connected to the top 8 outputs of my
> stamp. So I should use OUTH as a command (eg. OUTH = %
> 00000001 'resets display?).
> I have R/W tied low; RS to out4 (on bs2) w/pull-up resistor; E to
> out6 (on bs2) w/pull-up resistor.
>
> So....with the outh puttin out the bits that I want....do I pulse E
> for the LCD to take it?
>
> I can't seem to get more than the first line solid with
> blocks...luckily that happens by just applying power!! haha
>
> Thanks
>
>
>
> To UNSUBSCRIBE, just send mail to:
> basicstamps-unsubscribe@yahoogroups.com
> from the same email address that you subscribed. Text in the
Subject
> and Body of the message will be ignored.
>
>
> Your use of Yahoo! Groups is subject to
> http://docs.yahoo.com/info/terms/
To UNSUBSCRIBE, just send mail to:
basicstamps-unsubscribe@yahoogroups.com
from the same email address that you subscribed. Text in the Subject
and Body of the message will be ignored.
Your use of Yahoo! Groups is subject to
http://docs.yahoo.com/info/terms/