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| author | reinelt <> | 2003-07-28 08:22:17 +0000 |
|---|---|---|
| committer | reinelt <> | 2003-07-28 08:22:17 +0000 |
| commit | 6ea1ce26e69f1180806cd31f71a3e59091820371 (patch) | |
| tree | 81727c51879200aa64fb97163e4333811c8cf066 /README.Crystalfontz | |
| parent | 80ad6d155c1b974590f0c96b6291b0baa70b09d5 (diff) | |
| download | lcd4linux-6ea1ce26e69f1180806cd31f71a3e59091820371.tar.gz | |
[lcd4linux @ 2003-07-28 08:22:17 by reinelt]
several README's moved to web page
Diffstat (limited to 'README.Crystalfontz')
| -rw-r--r-- | README.Crystalfontz | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/README.Crystalfontz b/README.Crystalfontz deleted file mode 100644 index 4c76b45..0000000 --- a/README.Crystalfontz +++ /dev/null @@ -1,44 +0,0 @@ - -This is the README file for the Crystalfontz display driver for lcd4linux - -This driver supports the 632/634 LCD-Modules from Crystalfontz, but should -work for the 626 and 636 modules too. The 634 is a 20x4 character display, -while the others only display 16x2. I've written the driver using a -634 module. - -The driver understands the following configuration parameters: - -Display: any of 626, 632, 634 and 636. - -Port: serial device (i.e. ttyS0) the LCD module is connnected - to. - -Speed: any of 1200, 2400, 9600 and 19200. By default, the driver - uses 9600 which is the speed the LCD modules are hardwired - at. If your module works at a different speed than 9600, - use this parameter. Otherwise omit it (i.e. omit it when - you have a 634). - -Backlight: controls the backlight brightness. Quote from 634.pdf from - the Crystalfonts-Webserver[1]: "0=OFF 100=ON. Intermediate - values vary the brightness. There are a total of 25 possible - brightness levels." - -Contrast: controls the contrast settings. Quote[1]: "0=very light, - 100 = very dark. 50 is typical. There are a total of 25 - possible contrast levels." - - -Known bugs: -When you draw a bar over a previously drawn textfield, the white portion -the bar will not erase the text. Only when the black portion of the bar -has reached the full bar length, the text will be erased. I did not bother -to implement that, since in lcd4linux, the whole display-screen is erased -prior to switching to a different 'screen'. Implementing this feature would -just add to program-overhead. Yes, you guessed it: I did not use the "bar"- -command that comes with the LCD-module, but wrote my own instead. -lcd4linux also supports "split-" or "dual-bars" (two bars in one segment), -which are not available on the Crystalfontz firmware. - - [1] http://www.crystalfontz.com - |