updated with current status and usage

README.md

@@ -23,20 +23,30 @@ ___
 ```C
 #include "AVR_ATMEGA_1602LCD.h"
 
-void lcd_begin() {
+void do_stuff() {
-    set_lcd_two_line();
+    PORTD = 0x00;
-    return_home_lcd();
+    DDRD = 0xff;
-    clear_lcd();
+    init_lcd();
     
-    //Do stuff.
+    return_home_lcd();
+    set_entry_mode_increment_lcd();
+   
+    //Refernce the datasheet for charecter codes. 
+    write_lcd_address(0x7f);    //Right pointing arrow 
+    
+    //wait a bit.
+    _delay_ms(1000);
+
+    //clear it up
+    clear_lcd();
+    return_home_lcd();
+
+    //Do more stuff...
 }
 ```
 
 ## RoadMap:
 
-1. define all functions for the data sheets instructions.
-2. Change cmd_lcd() function to only be called once instead of nibbles.
-3. Make functions port indapendant.
 4. ADD function to print strings
 5. ADD function to display bit images
 6. ADD function to act as a loading screen.
@@ -45,4 +55,13 @@ void lcd_begin() {
 9. ADD PWM control for backlight
 
 
+## ISSUES:
+
+Currently during powerloss events and initialization, long wire runs or 
+residual charge can cause the LCD to maintain memory for a shor duration.
+
+In 4bit mode it's possible to end up with a invalid "nibble" in the LCD memory
+in this case the system should power cycle the LCD unit assuming it's 
+controlled by the microcontroller.
+