//-----------------------------------------------------------------------------
static void lcd_HD44780_write(uint8_t data) {
if (engineConfiguration->displayMode == DM_HD44780) {
palWritePad(HD44780_PORT_DB7, HD44780_PIN_DB7, data & 0x80 ? 1 : 0);
palWritePad(HD44780_PORT_DB6, HD44780_PIN_DB6, data & 0x40 ? 1 : 0);
palWritePad(HD44780_PORT_DB5, HD44780_PIN_DB5, data & 0x20 ? 1 : 0);
palWritePad(HD44780_PORT_DB4, HD44780_PIN_DB4, data & 0x10 ? 1 : 0);
palSetPad(HD44780_PORT_E, HD44780_PIN_E); // En high
lcdSleep(10); // enable pulse must be >450ns
palClearPad(HD44780_PORT_E, HD44780_PIN_E); // En low
lcdSleep(40); // commands need > 37us to settle
} else {
// LCD D4_pin -> P4
// LCD D5_pin -> P5
// LCD D6_pin -> P6
// LCD D7_pin -> P7
// LCD Pin RS -> P0
// LCD Pin RW -> P1
// LCD Pin E -> P2
i2cAcquireBus(&I2CD1);
txbuf[0] = 4;
i2cMasterTransmit(&I2CD1, LCD_PORT_EXP_ADDR, txbuf, 1, NULL, 0);
lcdSleep(10); // enable pulse must be >450ns
txbuf[0] = 0;
i2cMasterTransmit(&I2CD1, LCD_PORT_EXP_ADDR, txbuf, 1, NULL, 0);
i2cReleaseBus(&I2CD1);
}
}
//-----------------------------------------------------------------------------
static void lcd_HD44780_write(uint8_t data) {
if (engineConfiguration->displayMode == DM_HD44780) {
palWritePad(getHwPort(boardConfiguration->HD44780_db7), getHwPin(boardConfiguration->HD44780_db7),
data & 0x80 ? 1 : 0);
palWritePad(getHwPort(boardConfiguration->HD44780_db6), getHwPin(boardConfiguration->HD44780_db6),
data & 0x40 ? 1 : 0);
palWritePad(getHwPort(boardConfiguration->HD44780_db5), getHwPin(boardConfiguration->HD44780_db5),
data & 0x20 ? 1 : 0);
palWritePad(getHwPort(boardConfiguration->HD44780_db4), getHwPin(boardConfiguration->HD44780_db4),
data & 0x10 ? 1 : 0);
palSetPad(getHwPort(boardConfiguration->HD44780_e), getHwPin(boardConfiguration->HD44780_e)); // En high
lcdSleep(10); // enable pulse must be >450ns
palClearPad(getHwPort(boardConfiguration->HD44780_e), getHwPin(boardConfiguration->HD44780_e)); // En low
lcdSleep(40); // commands need > 37us to settle
} else {
// LCD D4_pin -> P4
// LCD D5_pin -> P5
// LCD D6_pin -> P6
// LCD D7_pin -> P7
// LCD Pin RS -> P0
// LCD Pin RW -> P1
// LCD Pin E -> P2
// todo: finish all this stuff
// i2cAcquireBus(&I2CD1);
//
// txbuf[0] = 4;
// i2cMasterTransmit(&I2CD1, LCD_PORT_EXP_ADDR, txbuf, 1, NULL, 0);
// lcdSleep(10); // enable pulse must be >450ns
//
// txbuf[0] = 0;
// i2cMasterTransmit(&I2CD1, LCD_PORT_EXP_ADDR, txbuf, 1, NULL, 0);
//
// i2cReleaseBus(&I2CD1);
}
}
