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102 lines
2.5 KiB
C
102 lines
2.5 KiB
C
/*
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* Copyright (C) 2017 HAW Hamburg
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup drivers_hd44780
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*
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* @{
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* @file
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* @brief Internal config and parameters for the HD44780 display
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*
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* @author Sebastian Meiling <s@mlng.net>
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*/
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#ifndef HD44780_INTERNAL_H
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#define HD44780_INTERNAL_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @name HD44780 LCD commands
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* @{
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*/
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#define HD44780_CLEARDISPLAY (0x01)
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#define HD44780_RETURNHOME (0x02)
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#define HD44780_ENTRYMODESET (0x04)
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#define HD44780_DISPLAYCONTROL (0x08)
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#define HD44780_CURSORSHIFT (0x10)
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#define HD44780_FUNCTIONSET (0x20)
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#define HD44780_SETCGRAMADDR (0x40)
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#define HD44780_SETDDRAMADDR (0x80)
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/** @} */
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/**
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* @name HD44780 LCD entry modes flags
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* @{
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*/
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#define HD44780_ENTRYRIGHT (0x00)
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#define HD44780_ENTRYLEFT (0x02)
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#define HD44780_ENTRYSHIFTINCREMENT (0x01)
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#define HD44780_ENTRYSHIFTDECREMENT (0x00)
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/** @} */
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/**
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* @name HD44780 LCD control flags
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* @{
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*/
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#define HD44780_DISPLAYON (0x04)
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#define HD44780_DISPLAYOFF (0x00)
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#define HD44780_CURSORON (0x02)
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#define HD44780_CURSOROFF (0x00)
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#define HD44780_BLINKON (0x01)
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#define HD44780_BLINKOFF (0x00)
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/** @} */
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/**
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* @name HD44780 display and cursor shift flags
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* @{
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*/
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#define HD44780_DISPLAYMOVE (0x08)
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#define HD44780_CURSORMOVE (0x00)
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#define HD44780_MOVERIGHT (0x04)
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#define HD44780_MOVELEFT (0x00)
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/**@}*/
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/**
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* @name HD44780 LCD functional flags
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* @{
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*/
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#define HD44780_8BITMODE (0x10)
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#define HD44780_4BITMODE (0x00)
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#define HD44780_2LINE (0x08)
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#define HD44780_1LINE (0x00)
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#define HD44780_5x10DOTS (0x04)
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#define HD44780_5x8DOTS (0x00)
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/** @} */
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/**
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* @name HD44780 LCD timings
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* @{
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*/
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#define HD44780_CMD_WAIT (2000U)
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#define HD44780_INIT_WAIT_XXL (50000U)
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#define HD44780_INIT_WAIT_LONG (4500U)
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#define HD44780_INIT_WAIT_SHORT (150U)
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#define HD44780_PULSE_WAIT_SHORT (1U)
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#define HD44780_PULSE_WAIT_LONG (100U)
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/**@}*/
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#ifdef __cplusplus
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}
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#endif
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#endif /* HD44780_INTERNAL_H */
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/** @} */
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