Use unified kernel for lcd hd44780 app.
Some delays were rounded up to multiples of millisecond, since
k_sleep only takes multiples of millisecond. Based on the lcd
datasheet, this should not cause any problem.
updated some comments based on what the code is actually doing.
Change-Id: I533c822dbaea0246dcd62a76cc23ce0d8edd4630
Signed-off-by: Baohong Liu <baohong.liu@intel.com>
Display text strings on parallel interfacing HD44780 based
generic LCD controller using GPIO pins to interface with
Arduino Due(SAM3). HD44780 is a popular controller and an
example can help using gpio pins in parallel with it. I
have tested it on JHD20x4 LCD panel for 4Bits & 8Bits
configuration. The code has been made generic so that user
can modify quite a few options.
Datasheets:
http://lcd-linux.sourceforge.net/pdfdocs/hd44780.pdf
Signed-off-by: Milind Deore <tomdeore@gmail.com>
Change-Id: If2809222466b462fa2f4c42b14a514828530f082