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 Post subject: KS0108 on FT245
PostPosted: Wed Oct 11, 2006 18:09 
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Joined: Wed Oct 11, 2006 15:54
Posts: 2
Hi
Where can i find wiring scheme for KS0108 & FT245? :evil:

Thanx


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 Post subject:
PostPosted: Wed Oct 11, 2006 19:24 
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Joined: Fri Oct 06, 2006 22:10
Posts: 6
http://www.skippari.net/lcd/ks0108.html
Here is an useful schematic.


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 Post subject:
PostPosted: Thu Oct 12, 2006 8:56 
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Joined: Wed Oct 11, 2006 15:54
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Akca wrote:

8O
It was implied USB connection schematic :!:


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PostPosted: Thu Oct 12, 2006 13:31 
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Joined: Mon Jun 20, 2005 23:03
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Location: Hong Kong
It's unlikely the display can be connected directly to the FTDI chip due to the extra control signals required to operate the controller(s); CS1-CS2, C/D, and E. Others have used a microcontroller for control logic. A shift register could also be useful.

_________________
myLCD - An LCD framebuffer library
(KS0108, PCD8544, SED1565, SED1335,
Nokia Colour LCD's, T6963C, TCP/IP, etc..)
http://mylcd.sourceforge.net/


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PostPosted: Fri Nov 23, 2007 18:57 
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Joined: Fri Nov 23, 2007 17:00
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I have been trying to figure this one out too. I think it should be possible.

The trick would be to multiplex the I/O lines in such a way as to provide a fast but usable interface. I would split it thus:

Code:
FT245R    D7=0    D7=1
D0        D0     D4
D1        D1      D5
D2        D2      D6
D3        D3      D7
D4        R/W     CSA
D5        D/I     CSB
D6        E-LCD   W-BUF


E-LCD is the LCD enable pin, W-BUF is a hex buffer write pin.

In fact, it might be possible to speed things up by using the FT245R's RD line, which strobes as data is written. It might replace D6, meaning only two writes would be required to write a byte to the LCD. A pair of hex buffers and some logic would be all that is required.


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