piclist-bounces@mit.edu wrote:
>> Note that the LCD controller is busy for approximately 10ms after
>> power up, so you must wait at least this long before attemping to
>> configure it!
> 
> Very true. I've had to increase my delay after power-up from
> the usual 15ms to 30ms with some (no-name) brands. They
> simply don't play ball if you try to initialise too early.
> Maybe start with 50ms, decrease until it fails if power-up
> time is an issue

I also use 30ms. I've pasted a snipped of my c-code for 4bit
initialization which worked for me. should be easy enough to
convert to asm...


// 	Copywrite Craig Lee 1998
//
// REVISION HISTORY
//	08/19/02 P.O.E. 

[snip]

	LCD_TRIS_RS = 0;
	LCD_TRIS_EN = 0;
	LCD_EN = 0;		// enable
	LCD_RS = 0;		// register select
	LCD_TRIS_D4 = 0;
	LCD_TRIS_D5 = 0;
	LCD_TRIS_D6 = 0;
	LCD_TRIS_D7 = 0;

	DelayMs(30);		// power on delay

	lcd_write_nybble(0x3);	//DB5, DB4 = 1
	DelayMs(5);

	lcd_write_nybble(0x3);	//DB5, DB4 = 1
	DelayMs(5);

	lcd_write_nybble(0x3);	//DB5, DB4 = 1
	DelayMs(5);

	//get 4 bit interface
	lcd_write_nybble(0x2);	//DB5 = 1
	DelayMs(5);

	//function set. 4 bit, 2 lines, 5x8 dots
	lcd_command(LCD_FUNCMODE | LCD_4BITS | LCD_2LINES | LCD_5x8);
	
	//display control, all off
	lcd_command(LCD_DISPCNTRL);

	//clear display
	lcd_command(0x01);
	DelayMs(5);

	//entry mode increment (advance) cursor
	lcd_command(LCD_ENTRYMODE | LCD_INC);

	//display control, display on
	lcd_command(LCD_DISPCNTRL | LCD_DISPLAY);

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