parallel LCD''s PITA
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Posts: 46,084
Black blocks means the contrast is too high. Adjust it so they just
disappear. If you only see one line of black blocks, you are not
initializing the display for two lines.
Look up the Nuts & Volts article and use it as your guide. Much easier than
guessing.
Original Message
> 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.
disappear. If you only see one line of black blocks, you are not
initializing the display for two lines.
Look up the Nuts & Volts article and use it as your guide. Much easier than
guessing.
Original Message
> 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.