Getting Started

Chapter 11 The Butterfly LCD

o Send CLEAR while displaying text on th

o Verify function by seeing the LCD clear

e LCD

reuse that to call the functions on

o

o Load the string and point pStr to it.

o Call LCD_puts(*pStr, scrollmode);

o Send “Called LCD_puts with ‘string’” to the PC where string is the

string sent.

• CLEAR
  o Call LCD_Clear();
  o Send “Called “LCD_Clear()” to the PC


• COLON#
  o If # == 1 call LCD_Colon(1);
  o E
  o Send “Called LCD_Colon” to the PC where # is the one sent.


• SETC##
  o Convert ## characters to a numerical value ‘input’
  o Call SetContrast(input);


• COLON to test LCD_Colon(char show);
  o Send COLON,on/off where on/off is either ON or OFF
  o Verify function by seeing colons on LCD turn on or off


• SETC## to test char SetContrast(char input);
  o Send SETC## where ## is from 0 to 15 and sets the contrast.

We will use this to design the functions needed on the Butterfly. We already have
a command processor designed, so we will
receipt of the correct command.

• PUTCdigitcharacter
  o Call LCD_putc(digit, character);
  Send “Called LCD_putc” to PC where # are the values sent in
  decimal


• PUTF
  o Set a pointer, pFlashStr, to a string in flash
  o Call LCD_puts_f(pFlashStr, scrollmode);
  o Send “Called LCD_puts_f” to the PC.


• PUTSstring

lse if # == 0 call LCD_Colon(0);