LCD display question
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Posts: 46,084
Hi Stampers,
I am having difficulty using a very common 16X2 LCD display with a
BS2P.
The model is Optrex DMC16207 from Digi-Key. I have used this model
before without trouble but now with my BS2P and using the LCDOUT
command I'm having trouble.
All of the info I've read about these displays references the HD44780
controller but this new one has a Samsung controller. I have tried my
design using an old 4X20 line display with the HD44780 controller and
it works fine displaying in the first 2 lines. I find that when I use
the LCDOUT command with included cursor positioning data, the
positioning doesn't happen. If I send two seperate commands one for
positioning and the next for the text, it works O.K.
Has anyone else ran across this phenomena. I am guessing that the
Samsung chip is not fast enough to keep up with the BS2P. Can someone
tell me if I may be on the right track?
Thanks
I am having difficulty using a very common 16X2 LCD display with a
BS2P.
The model is Optrex DMC16207 from Digi-Key. I have used this model
before without trouble but now with my BS2P and using the LCDOUT
command I'm having trouble.
All of the info I've read about these displays references the HD44780
controller but this new one has a Samsung controller. I have tried my
design using an old 4X20 line display with the HD44780 controller and
it works fine displaying in the first 2 lines. I find that when I use
the LCDOUT command with included cursor positioning data, the
positioning doesn't happen. If I send two seperate commands one for
positioning and the next for the text, it works O.K.
Has anyone else ran across this phenomena. I am guessing that the
Samsung chip is not fast enough to keep up with the BS2P. Can someone
tell me if I may be on the right track?
Thanks