University of Plymouth - Stages 1, 2 and 3 / LCD-Winstar-WH1602B

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Revision 9:1c075b5dd4c9, committed 2019-10-21

Comitter:
noutram
Date:
Mon Oct 21 11:49:25 2019 +0000
Parent:
8:308d188a2d3a
Commit message:
Updated for Winstar WH1602B

Changed in this revision

TextLCD.cpp Show annotated file Show diff for this revision Revisions of this file 
--- a/TextLCD.cpp	Thu Jan 02 21:07:01 2014 +0000
+++ b/TextLCD.cpp	Mon Oct 21 11:49:25 2019 +0000
@@ -31,15 +31,18 @@
     _e  = 1;
     _rs = 0;            // command mode
 
-    wait(0.015);        // Wait 15ms to ensure powered up
+    wait_us(40);     // Wait for more than 40ms for power up
+    //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
+        wait_us(40);
+        //wait(0.00164);  // this command takes 1.64ms, so wait for it
     }
     writeByte(0x2);     // 4-bit mode
-    wait(0.000040f);    // most instructions take 40us
+    wait_us(40);
+    //wait(0.000040f);    // most instructions take 40us
 
     writeCommand(0x28); // Function set 001 BW N F - -
     writeCommand(0x0C);
@@ -55,7 +58,8 @@
 
 void TextLCD::cls() {
     writeCommand(0x01); // cls, and set cursor to 0
-    wait(0.00164f);     // This command takes 1.64 ms
+    wait_us(1640);
+    //wait(0.00164f);     // This command takes 1.64 ms
     locate(0, 0);
 }
 
@@ -91,14 +95,18 @@
 
 void TextLCD::writeByte(int value) {
     _d = value >> 4;
-    wait(0.000040f); // most instructions take 40us
+    wait_us(41);
+    //wait(0.000040f); // most instructions take 40us
     _e = 0;
-    wait(0.000040f);
+    wait_us(41);
+    //wait(0.000040f);
     _e = 1;
     _d = value >> 0;
-    wait(0.000040f);
+    wait_us(41);
+    //wait(0.000040f);
     _e = 0;
-    wait(0.000040f);  // most instructions take 40us
+    wait_us(41);
+    //wait(0.000040f);  // most instructions take 40us
     _e = 1;
 }