[lcd4linux] New firmware for LCD2USB with extended keypad support...

[Thorsten G. <dl...@gm...>]

Hi,

maybe also an interesting issue for the LCD4linux/LCD2USB-users:

i extended Till Harbaum's firmware x.08 for LCD2USB to support
a up to 12 pushbuttons keymatrix and did some further updates.
Here is the complete list of changes:

- Latest V-USB sourcecodes 20090822 used.
  Replaced "avrusb" by "vusb".
  Used latest "usbconfig.h" and modified it for LCD2USB.

- Latest USBTINY sourcecodes v1.4 used.
  Therefore replaced "main.hex/elf" by "firmware-usbtiny.hex/elf"
  in usbtiny/common.mk.
  Therefore added prototype of usb_setup() within the #ifdef-branch
  for USBTINY: 
  :
  #define usbInit()  usb_init()
  #define usbPoll()  usb_poll()
  
  // Prototype of usb_setup()
  byte_t    usb_setup ( byte_t data[8] );
  #endif  
  :
  
  Removed "extern" from usb_setup().

- Changed startup message from
  "LCD2USB V1.08 both!"
  "2nd ctrl both!"
  to
  "LCD2USB V1.09 1st OK"
  "LCD2USB V1.09 2nd OK"
  
  where "1st" is the first LCD-controller controlled by EN0 and
  "2nd" is the second LCD-controller controlled by EN1.
  "OK" is written to both at a time wirh EN0 and EN1 activated.

- Added extended keypad functionality (see Keypad.txt).
  A keypad with up to 12 keys can be connected to the existing
  hardware. The extension is backward compatible to the PCB version
  1.1 by Till Harbaum.
  
- Added a "LCD2USB SMD-Edition" (see LCD2USBsed_Front.jpg and
  LCD2USBsed_Back.jpg). The board has a cuttable 7-buttons keypad.
  The keypad can be used with LCDproc (Keymatrix_X_Y).

The complete package with the latest firmware can be found here: 
http://www.dl9sec.de/LCD2USB/LCD2USBsed_1V0.zip

It would be interesting for me, what happens with the additional
buttons in LCD4linux and how they are handled, because i usually
use LCDproc. Maybe someone can try it.
The matrix coordinates are mapped into the lower and higher nibble
of the scancode return value (see Keypad.txt).

Have fun...

Regards, Thorsten