Diff: TextLCD.cpp

Revision:

9:613720545be0

Parent:

7:44f34c09bd37

--- a/TextLCD.cpp	Thu Jan 02 21:07:01 2014 +0000
+++ b/TextLCD.cpp	Mon Dec 19 23:44:46 2022 +0000
@@ -47,6 +47,28 @@
     cls();
 }
 
+
+void TextLCD::init(void)
+{
+    _e  = 1;
+    _rs = 0;            // command mode
+
+    wait(0.015);        // Wait 15ms to ensure powered up
+
+    // send "Display Settings" 3 times (Only top nibble of 0x30 as we've got 4-bit bus)
+    for (int i=0; i<3; i++) {
+        writeByte(0x3);
+        wait(0.00164);  // this command takes 1.64ms, so wait for it
+    }
+    writeByte(0x2);     // 4-bit mode
+    wait(0.000040f);    // most instructions take 40us
+
+    writeCommand(0x28); // Function set 001 BW N F - -
+    writeCommand(0x0C);
+    writeCommand(0x6);  // Cursor Direction and Display Shift : 0000 01 CD S (CD 0-left, 1-right S(hift) 0-no, 1-yes
+}
+
+
 void TextLCD::character(int column, int row, int c) {
     int a = address(column, row);
     writeCommand(a);