1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23
|
/*
* ----------------------------------------------------------------------------
* "THE BEER-WARE LICENSE" (Revision 42):
* <joerg@FreeBSD.ORG> wrote this file. As long as you retain this notice you
* can do whatever you want with this stuff. If we meet some day, and you think
* this stuff is worth it, you can buy me a beer in return. Joerg Wunsch
* ----------------------------------------------------------------------------
*
* General stdiodemo defines
*
* $Id: defines.h 2186 2010-09-22 10:25:15Z aboyapati $
*/
/* HD44780 LCD port connections */
#define HD44780_RW B, 6
#define HD44780_E B, 5
#define HD44780_RS B, 4
/* The data bits have to be not only in ascending order but also consecutive. */
#define HD44780_D4 B, 0
/* Whether to read the busy flag, or fall back to
worst-time delays. */
#define USE_BUSY_BIT 1
|