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

Dependents:   LV7_LCDtest LV7_Grupa5_Tim003_Zadatak1 lv7_Grupa5_Tim008_zad1 LV7_PAI_Grupa5_tim10_Zadatak1 ... more

This library is designed to make it easy to interface an mbed with a Nokia 5110 LCD display.

These can be found at Sparkfun (https://www.sparkfun.com/products/10168) and Adafruit (http://www.adafruit.com/product/338).

The library uses the SPI peripheral on the mbed which means it is much faster sending data to the display than other libraries available on other platforms that use software SPI.

The library can print strings as well as controlling individual pixels, meaning that both text and primitive graphics can be displayed.

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);