I just verified this on my 5110 display as it was the only one on the
bus, I grounded CS and it still worked.


Chetan Bhargava
http://microz.blogspot.com


On Tue, Aug 14, 2012 at 8:00 PM, Chetan Bhargava <cbhargava@gmail.com> wrot=
e:
> Hi All,
>
> I'm new to OLED displays but have used the Nokia 5110 in couple of my
> previous projects. I believe that they both work the same way (SPI-
> Data in, CLK in, CS, D/C, RST) , just the init sequence is a bit
> different.
>
> I believe that CS signal can be omitted if there is only one device on
> the SPI bus. If I tie it low, the display will always be selected and
> any transaction on the SPI bus will be directed towards the OLED
> display. This way I can save a signal pin, would there be any issues?
>
>
> Thanks,
>
>
> Chetan Bhargava
> http://microz.blogspot.com
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