Simple library for interfacing to Nokia 5110 LCD display (as found on the SparkFun website).

Fork of N5110 by Craig Evans

Revision:
6:adb79338d40f
Parent:
5:6ea180eef702
Child:
7:3010f24e0a81
--- a/N5110.h	Sun Jan 26 20:18:45 2014 +0000
+++ b/N5110.h	Mon Jan 27 18:41:45 2014 +0000
@@ -49,7 +49,27 @@
  *
  * Example:
  * @code
- * 
+ 
+ #include "mbed.h"
+ #include "N5110.h"
+ 
+  //    VCC,SCE,RST,D/C,MOSI,SCLK,LED
+ N5110 lcd(p7,p8,p9,p10,p11,p13,p26);
+ 
+ int main() {
+    
+   // initialise display 
+  lcd.init();
+  // print a string in top-left corner
+  lcd.printString("Hello, World!",0,0);
+  // move cursor to 4th row
+  lcd.setXYAddress(0,3);
+  // print character
+  lcd.printChar('X');
+    
+  while(1);
+ }
+  
  * @endcode
  */
 class N5110
@@ -125,18 +145,53 @@
     /** Print Character
     *
     *   Sends a character to the display.  Will be printed at the current address.
-    *   X address is autoincremented by 1 to leave a pixel between successive characters
+    *   X address is autoincremented by 1 to leave a pixel between successive characters.
     *   @param  c - the character to print. Can print ASCII as so printChar('C').
     */
     void printChar(char c);
     
+    /** Set a Pixel
+    *
+    *   This function sets a pixel in the display. A call to refresh() must be made
+    *   to update the display to reflect the change in pixels.
+    *   @param  x - the x co-ordinate of the pixel (0 to 83)
+    *   @param  y - the y co-ordinate of the pixel (0 to 47) 
+    */
     void setPixel(int x, int y);
+    
+    /** Clear a Pixel
+    *
+    *   This function clears pixel in the display. A call to refresh() must be made
+    *   to update the display to reflect the change in pixels.
+    *   @param  x - the x co-ordinate of the pixel (0 to 83)
+    *   @param  y - the y co-ordinate of the pixel (0 to 47) 
+    */
     void clearPixel(int x, int y);
+    
+    /** Get a Pixel
+    *
+    *   This function gets the status of a pixel in the display.
+    *   @param  x - the x co-ordinate of the pixel (0 to 83)
+    *   @param  y - the y co-ordinate of the pixel (0 to 47) 
+    *   @returns 
+    *       0           - pixel is clear
+    *       non-zero    - pixel is set
+    */
     unsigned char getPixel(int x, int y);
     
+    /** Refresh display
+    *
+    *   This functions refreshes the display to reflect the current data in the buffer.
+    */    
+    void refresh();
     
-    void refreshDisplay();
-    void clearBuffer();
+    /** Randomise buffer
+    *
+    *   This function fills the buffer with random data.  Can be used to test the display.  
+    *   A call to refresh() must be made to update the display to reflect the change in pixels.
+    *   The seed is not set and so the generated pattern will probably be the same each time.
+    *   TODO: Randomise the seed - maybe using the noise on the AnalogIn pins.
+    */
     void randomiseBuffer();
 
 private:
@@ -144,6 +199,7 @@
     void turnOn();
     void reset();
     void clearRAM();
+    void clearBuffer();
     void sendCommand(unsigned char command);
     void sendData(unsigned char data);