Bryan Hurley wrote:
> http://www.earthlcd.com/sk2003.htm 6.4" 200nit TFT $695 std vga.
This is the same LCD panel (NEC NL6448AC20-06) that I use with my
PCM-5822. The panel is digital VGA, and can be interfaced to most
SBCs directly to the LCD port (its standard TFT 6 bits per color).
If the SBC has a header for LCD panels, then the Fraker controller
(VGA to LCD) in the above kit is not needed. Because the panel in
this kit is VGA (not NTSC) and can interface directly to SBCs, I
think this is a good kit, better than buying a LCD panel kit that
only works with analog VGA or NTSC input. Also, the price on the
above kit is cheaper than the kit I bought from EMJ, which includes
just the LCD panel, backlight inverter, and cable for $800 (its a
cell computing accessory). Same panel as in the earth kit is here:
http://www.emjembedded.com/cgi-bin/america/order/pdetail.cgi?1CLCDKA
I have some pics of this same NEC LCD dressed in leather here:
http://home.earthlink.net/~wearable/fashion.html
BTW if anyone wants to interface this NL6448AC20-06 display to
PCM-5822, note that the connection pinouts on the Advantech site
are wrong for this display. They are listed here:
http://support.advantech.com/Cservice/LCD.nsf/f99b88c84af1eeff482565ec000759ea/d573764d32c58660c825660b0030b3aa?OpenDocument
Advantech has all of the ground connections on the LCD sharing
pin 8 on the LCD header, this doesn't work well, its too noisy
(causes flickers and/or ghosting). The connection for this
display to PCM-5822 should look like this:
NL6448AC20-06 PCM-5822
1 3 GND
2 35 SHFCLK
3 38 HSYNC
4 36 VSYNC
5 4 GND
6 27 RED0
7 28 RED1
8 29 RED2
9 30 RED3
10 31 RED4
11 32 RED5
12 8 GND
13 19 GREEN0
14 20 GREEN1
15 21 GREEN2
16 22 GREEN3
17 23 GREEN4
18 24 GREEN5
19 33 GND
20 11 BLUE0
21 12 BLUE1
22 13 BLUE2
23 14 BLUE3
24 15 BLUE4
25 16 BLUE5
26 34 GND
27 37 DATA ENABLE
28 5 VCC 5V
29 5 VCC 5V
30 NC NO CONNECT
31 39 GND
This arrangement of using separate ground pins (pins 4, 8, 33, and 34)
instead of sharing a single ground pin (pin 8) is the same as Advantech's
recommended hookup for NL6448Ac33-18:
http://support.advantech.com/Cservice/LCD.nsf/f99b88c84af1eeff482565ec000759ea/a417e07ac202416e482565ec002a2a44?OpenDocument
I discovered the solution the hard way, trial and error making different
cables till I realized that the GND pins need to be separate. If you want
to connect the panel from the above kit to PCM-5822, you can use a 44-pin
HDD cable end (fits the LCD port) splice it to the 31-pin LCD cable by
manual soldering, following the above connections. The cable length can
only be 18 inches max or severe flicker/ghosting will occur. I was able
to power the LCD backlight inverter directly from the PCM-5822 LCD header,
allowing just a single 44-pin connector to install/remove the display
(the above connections plus power and ground feeding to the backlight
inverter from pins 6 & 39 on the PCM-5822 LCD header).
-- Doug
--
Subscription/unsubscription/info requests: send e-mail with subject of
"subscribe", "unsubscribe", or "info" to 
Wear-Hard Mailing List Archive (searchable): http://wearables.blu.org
please, Please, *PLEASE* don't subscribe through a forward/false domain
From Wear-Hard Mailing list Archive (WH)
Maintained by R. Paul McCarty
Archive created with babymail