Hammer LCD 4bit Grey Scale STN
The Hammer supprts an LCD interface which can be configured to drive various kinds of displays. The following is how I wired up a 16 shade greyscale, 4 bit single scan, 320 x 240 LCD panel.
I used a Sharp LM32K10 display panel.
The above schematic uses a 74AC244
The driver interface can be done with either:
The source of V- is left to the user, this panel requires about 7-10ma at -18-19VDC.
I used an *NMA0515S with the V+ connection grounded, so its output is ~-30VDC at up to 33ma.
The following circuit drops the -33V to -18V for use by the LCD panel.
The Hammer signon message displayed on the LM32K10 LCD panel.
LCD's that can be used with the Hammer using the same interface:
Other LCD panels with built in controllers that could be used with the Hammer(These panels have an on-board controller and do not use the S3C2410's lcd controller):