88 lines
2.0 KiB
C
88 lines
2.0 KiB
C
/*
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ChibiOS/GFX - Copyright (C) 2012
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Joel Bodenmann aka Tectu <joel@unormal.org>
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This file is part of ChibiOS/GFX.
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ChibiOS/GFX is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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ChibiOS/GFX is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @file drivers/tdisp/HD44780/tdisp_lld.c
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* @brief TDISP driver subsystem low level driver source for the HD44780 display
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*
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* @addtogroup TDISP
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* @{
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*/
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#include "ch.h"
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#include "hal.h"
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#include "gfx.h"
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#if GFX_USE_TDISP /*|| defined(__DOXYGEN__)*/
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#ifndef TDISP_ROWS
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#define TDISP_ROWS 16
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#endif
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#ifndef TDISP_COLUMNS
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#define TDISP_COLUMNS 2
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#endif
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#include "tdisp_lld_board_example.h"
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void TDISP_LLD(write_cmd)(uint8_t data) {
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setpin_rs(FALSE);
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setpin_rw(FALSE);
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write_bus(data);
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setpin_e(TRUE);
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chThdSleepMicroseconds(1);
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setpin_e(FALSE);
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chThdSleepMicroseconds(5);
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}
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void TDISP_LLD(write_data)(uint8_t data) {
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setpin_rs(TRUE);
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setpin_rw(FALSE);
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write_bus(data);
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setpin_e(TRUE);
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chThdSleepMicroseconds(1);
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setpin_e(FALSE);
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chThdSleepMicroseconds(5);
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}
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bool_t TDISP_LLD(init)(void) {
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/* initialise hardware */
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init_board();
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/* initialise controller */
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chThdSleepMilliseconds(50);
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TDISP_LLD(write_cmd)(0x38);
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chThdSleepMilliseconds(64);
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TDISP_LLD(write_cmd)(0x0f);
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chThdSleepMicroseconds(50);
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TDISP_LLD(write_cmd)(0x01);
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chThdSleepMilliseconds(5);
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TDISP_LLD(write_cmd)(0x06);
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chThdSleepMicroseconds(50);
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return TRUE;
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}
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#endif /* GFX_USE_TDISP */
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