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2 Commits

Author SHA1 Message Date
Baohong Liu 3a8d3dd07d samples: lcd_hd44780: use unified kernel
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>
2016-11-03 01:46:11 +00:00
Milind Deore 7254f1d168 samples: gpio: lcd: sample app for HD44780 LCD controller
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
2016-05-29 22:28:17 +00:00