This was discussed a bit a few months back:
http://www.nabble.com/LCD---AAGelectronica-design-tf3137574.html
I think when owfs writes to the LCD it does so in bytes, not bits, so it's
messing with those three pins.
On 9/8/07, Paul Alfille <[EMAIL PROTECTED]> wrote:
>
>
>
> ---------- Forwarded message ----------
> From: Brian Fahrlander <[EMAIL PROTECTED]>
> Date: Sep 8, 2007 6:59 PM
> Subject: LCD board question
> To: Paul Alfille <[EMAIL PROTECTED]>
>
>
> I have the Hobby-Boards.com board; type 29, etc...and I've added the
> three switches to the spare ports, but flipping switches doesn't seem to
> make any difference, I noticed that it mentioned something about "the
> gpio data doesn't mean anything if they're initialized for output..."
>
> Here's the device:
> drwxrwxrwx 1 root root 8 Sep 8 17:50 LCD_H
> drwxrwxrwx 1 root root 8 Sep 8 17:58 LCD_M
> -rw-rw-rw- 1 root root 1 Sep 8 17:58 PIO.0
> -rw-rw-rw- 1 root root 1 Sep 8 17:58 PIO.1
> -rw-rw-rw- 1 root root 1 Sep 8 17:58 PIO.2
> -rw-rw-rw- 1 root root 1 Sep 8 17:58 PIO.3
> -rw-rw-rw- 1 root root 1 Sep 8 17:58 PIO.4
> -rw-rw-rw- 1 root root 1 Sep 8 17:58 PIO.5
> -rw-rw-rw- 1 root root 1 Sep 8 17:58 PIO.6
> -rw-rw-rw- 1 root root 1 Sep 8 17:58 PIO.7
> -rw-rw-rw- 1 root root 15 Sep 8 17:58 PIO.ALL
> -rw-rw-rw- 1 root root 12 Sep 8 17:58 PIO.BYTE
> -r--r--r-- 1 root root 16 Sep 8 17:41 address
> -r--r--r-- 1 root root 2 Sep 8 17:41 crc8
> -r--r--r-- 1 root root 2 Sep 8 17:41 family
> -r--r--r-- 1 root root 12 Sep 8 17:41 id
> -rw-rw-rw- 1 root root 1 Sep 8 17:58 latch.0
> -rw-rw-rw- 1 root root 1 Sep 8 17:58 latch.1
> -rw-rw-rw- 1 root root 1 Sep 8 17:58 latch.2
> -rw-rw-rw- 1 root root 1 Sep 8 17:58 latch.3
> -rw-rw-rw- 1 root root 1 Sep 8 17:58 latch.4
> -rw-rw-rw- 1 root root 1 Sep 8 17:58 latch.5
> -rw-rw-rw- 1 root root 1 Sep 8 17:58 latch.6
> -rw-rw-rw- 1 root root 1 Sep 8 17:58 latch.7
> -rw-rw-rw- 1 root root 15 Sep 8 17:58 latch.ALL
> -rw-rw-rw- 1 root root 12 Sep 8 17:58 latch.BYTE
> -r--r--r-- 1 root root 16 Sep 8 17:41 locator
> -rw-rw-rw- 1 root root 1 Sep 8 17:58 por
> -r--r--r-- 1 root root 1 Sep 8 17:58 power
> -r--r--r-- 1 root root 1 Sep 8 17:58 present
> -r--r--r-- 1 root root 16 Sep 8 17:41 r_address
> -r--r--r-- 1 root root 12 Sep 8 17:41 r_id
> -r--r--r-- 1 root root 16 Sep 8 17:41 r_locator
> -r--r--r-- 1 root root 1 Sep 8 17:58 sensed.0
> -r--r--r-- 1 root root 1 Sep 8 17:58 sensed.1
> -r--r--r-- 1 root root 1 Sep 8 17:58 sensed.2
> -r--r--r-- 1 root root 1 Sep 8 17:58 sensed.3
> -r--r--r-- 1 root root 1 Sep 8 17:58 sensed.4
> -r--r--r-- 1 root root 1 Sep 8 17:58 sensed.5
> -r--r--r-- 1 root root 1 Sep 8 17:58 sensed.6
> -r--r--r-- 1 root root 1 Sep 8 17:58 sensed.7
> -r--r--r-- 1 root root 15 Sep 8 17:58 sensed.ALL
> -r--r--r-- 1 root root 12 Sep 8 17:58 sensed.BYTE
> -rw-rw-rw- 1 root root 12 Sep 8 17:58 set_alarm
> -rw-rw-rw- 1 root root 1 Sep 8 17:58 strobe
> -r--r--r-- 1 root root 32 Sep 8 17:41 type
>
> This is the way the device has always looked...and "sensed.3 " is
> stuck at 1....I think the switches should be on lines 0,1, and 2 from
> the LCD schematic. At least that's what I'm seeing. (Other than no
> change when I flip.)
>
> :)
>
> Is there smoething I'm missing?
>
> --
> ------------------------------------------------------------------------
> Brian Fahrländer Christian, Conservative, and Technomad
> Evansville, IN http://Fahrlander.net/brian
> ICQ: 5119262 AOL/Yahoo/GoogleTalk: WheelDweller
> ------------------------------------------------------------------------
>
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