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