Diff: main.cpp

Revision:

0:578fd358c3d3

diff -r 000000000000 -r 578fd358c3d3 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Tue Feb 02 22:50:35 2016 +0000
@@ -0,0 +1,74 @@
+/*
+ Hotboards_SpiLcd - TextDirection
+ Demonstrates the use a 16x2 LCD display.  The Hotboards_SpiLcd
+ library works with all LCD displays that are compatible with the
+ ST7032 driver presented on Spi Lcd board (http://www.hotboards.org).
+ This sketch demonstrates how to use leftToRight() and rightToLeft()
+ to move the cursor.
+ The circuit:
+  *  BKL   -->  GND
+  *  VDD   -->  3.3v
+  *  GND   -->  GND
+  *  SCK   -->  PA_5
+  *  SI    -->  PA_6
+  *  CS    -->  PB_15
+  *  RS    -->  PB_14
+  *  RST   -->  PB_13
+ Library and example ported by Diego from Hotboards and originally created 
+ by David A. Mellis
+ library modified 5 Jul 2009
+ by Limor Fried (http://www.ladyada.net)
+ example added 9 Jul 2009
+ by Tom Igoe
+ modified 22 Nov 2010
+ by Tom Igoe
+*/
+#include "mbed.h"
+#include "Hotboards_SpiLcd.h"
+
+/* initialize an instance of SPI bus,setting the SPI pins*/
+SPI device(PA_7,PA_6,PA_5); /* SO, SI, SCK*/
+/* initialize the library with the numbers of the interface pins*/
+Hotboards_SpiLcd display( device, PB_15, PB_14, PB_13 ); /* SPI, CS, RS, RST */
+
+int thisChar = 'a';
+
+int main() 
+{
+    /* set the spi frequency to 5MHz*/
+    device.frequency(5000000);
+    /* initialize internal lcd controller:*/
+    display.init();
+    // turn on the cursor:
+    display.cursor();
+    
+    while(1) 
+    {
+      // reverse directions at 'm':
+      if (thisChar == 'm') 
+      {
+       // go right for the next letter
+       display.rightToLeft();
+      }
+      // reverse again at 's':
+      if (thisChar == 's') 
+      {
+        // go left for the next letter
+        display.leftToRight();
+      }
+      // reset at 'z':
+      if (thisChar > 'z') 
+      {
+        // go to (0,0):
+        display.home();
+        // start again at 0
+        thisChar = 'a';
+      }
+      // print the character
+      display.printf("%c",thisChar);
+      // wait a second:
+      wait(1);
+      // increment the letter:
+      thisChar++;
+    }
+}