glcd control pins polarity

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netos
Posts: 36
Joined: 15 Aug 2008 01:03

glcd control pins polarity

#1 Post by netos » 06 Oct 2010 16:30

Hi,

I have some GLCD modules with inverted polarity CS1 and CS2 pins. How can I change the state of CS1 and CS2 pins in software?

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zristic
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Re: glcd control pins polarity

#2 Post by zristic » 07 Oct 2010 07:53

netos wrote:Hi,

I have some GLCD modules with inverted polarity CS1 and CS2 pins. How can I change the state of CS1 and CS2 pins in software?
If you use mE libraries, then unfortunately you can't invert them from software, you have to add a hardware inverters on both pins. Sorry.

netos
Posts: 36
Joined: 15 Aug 2008 01:03

Re: glcd control pins polarity

#3 Post by netos » 13 Oct 2010 12:34

SOLVED!!

using cs2 as cs1 and cs1 as cs2 with inverted polarity lcd modules it works but its too sensitive to noises.

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