60 lines
1.3 KiB
C
60 lines
1.3 KiB
C
/*
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* This file is subject to the terms of the GFX License. If a copy of
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* the license was not distributed with this file, you can obtain one at:
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*
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* http://ugfx.org/license.html
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*/
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/**
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* @file drivers/tdisp/HD44780/tdisp_lld_board_olimex_e407.h
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* @brief TDISP driver subsystem board interface 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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#ifndef _TDISP_LLD_BOARD_H
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#define _TDISP_LLD_BOARD_H
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/* Configure these to match the hardware connections on your board */
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#define BUS_4BITS FALSE
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#define PORT_DATA GPIOG
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#define PORT_CTRL GPIOE
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#define PIN_RS 0
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#define PIN_RW 1
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#define PIN_EN 2
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static void init_board(void) {
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palSetGroupMode(PORT_CTRL, PAL_WHOLE_PORT, 0, PAL_MODE_OUTPUT_PUSHPULL);
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palSetGroupMode(PORT_DATA, PAL_WHOLE_PORT, 0, PAL_MODE_OUTPUT_PUSHPULL);
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palClearPad(PORT_CTRL, PIN_RW);
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}
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static void writeToLCD(uint8_t data) {
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palWritePort(PORT_DATA, data);
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palSetPad(PORT_CTRL, PIN_EN);
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gfxSleepMicroseconds(1);
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palClearPad(PORT_CTRL, PIN_EN);
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gfxSleepMicroseconds(5);
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}
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static void write_cmd(uint8_t data) {
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palClearPad(PORT_CTRL, PIN_RS);
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#if BUS_4BITS
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writeToLCD(data>>4);
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#endif
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writeToLCD(data);
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}
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static void write_data(uint8_t data) {
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palSetPad(PORT_CTRL, PIN_RS);
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#if BUS_4BITS
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writeToLCD(data>>4);
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#endif
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writeToLCD(data);
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}
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#endif /* _TDISP_LLD_BOARD_H */
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/** @} */
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