Updated EEPROM examples.

Removed hard coded lengths, which were incorrect for standard Arduino's
now.

1 files changed, 18 insertions, 6 deletions

diff --git a/libraries/EEPROM/examples/eeprom_clear/eeprom_clear.ino b/libraries/EEPROM/examples/eeprom_clear/eeprom_clear.ino
index b18ff2c..49eb5fe 100644
--- a/libraries/EEPROM/examples/eeprom_clear/eeprom_clear.ino
+++ b/libraries/EEPROM/examples/eeprom_clear/eeprom_clear.ino
@@ -2,22 +2,34 @@
  * EEPROM Clear
  *
  * Sets all of the bytes of the EEPROM to 0.
+ * Please see eeprom_iteration for a more in depth
+ * look at how to traverse the EEPROM.
+ *
  * This example code is in the public domain.
-
  */
 
 #include <EEPROM.h>
 
 void setup()
 {
-  // write a 0 to all 512 bytes of the EEPROM
-  for (int i = 0; i < 512; i++)
+
+  /***
+    Iterate through each byte of the EEPROM storage.    
+    
+    Larger AVR processors have larger EEPROM sizes, E.g:
+    - Arduno Duemilanove: 512b EEPROM storage.
+    - Arduino Uno:        1kb EEPROM storage.
+    - Arduino Mega:       4kb EEPROM storage.
+    
+    Rather than hard-coding the length, you should use the pre-provided length function.
+    This will make your code portable to all AVR processors.    
+  ***/
+  
+  for ( int i = 0 ; i < EEPROM.length() ; i++ )
     EEPROM.write(i, 0);
 
   // turn the LED on when we're done
   digitalWrite(13, HIGH);
 }
 
-void loop()
-{
-}
+void loop(){ /** Empty loop. **/ }