This module provides a two-line LCD display with 16 characters per line.
Manuals
Usage Zynq7000
To use the LCD display with the Zynq7000 together with https://flink-project.ch/, you need a GPIO subdevice within flink. Connect it in the following way:
| Microzed Board | Display |
|---|---|
| gpio[0] ... gpio [7] | D0 ... D7 |
| gpio[8] | RS |
| gpio[9] | E |
| gpio[10] | R/W |
There are two drivers available. One for Python when using a Linux operating system and one for Java in combination with deep.
Python Example
LCDExample.py
import driver
import time
# init LCD
disp = driver.HD44780U()
disp.init(2)
# write to display
a = 87103
disp.writeString(str(a))
disp.setCursor(1,5)
disp.writeChar('A')
disp.writeChar('x')
time.sleep(3)
# clear display
disp.clearDisplay()
# turn on display and turn off blinking and cursor
disp.onOff(True, False, False)
Java Example
LCDExample.java
import org.deepjava.runtime.zynq7000.driver.HD44780U;
public class CharLCDTest {
static HD44780U disp;
public static void dispOff() {
disp.onOff(false, true, true);
}
public static void dispOn() {
disp.onOff(true, true, true);
}
public static void writeT() {
disp.writeChar('T');
}
public static void writeInt() {
disp.writeInt(8635, 6);
}
public static void writeLn() {
disp.writeLn();
}
public static void clearDisplay() {
disp.clearDisplay();
}
public static void setCursor() {
disp.setCursor(1, 4);
}
static {
disp = HD44780U.getInstance();
disp.init(2);
}
}
