What is your LCD init routine?  I've never experienced that problem
with the cheap LCDs I have used with this routine:

write4 just writes 4 bits to the LCD interface, write8 writes 8 bits
in two cycles of 4 bits.  The rest should be pretty explanatory,
except for the ??? which I sure could be determined from the data
sheet in short order.

void initlcd(void)
{
	delayms(20);	// Wait for LCD to power up ( >15ms )
	RS=0;		// Set RS low for instruction
	write4(3);	// Set interface to 8 bits
	delayms(5);	// Wait for LCD execute instruction ( >4.1ms )
	write4(3);	// Set interface to 8 bits
	delayms(1);	// Wait for LCD execute instruction ( >100us )
	write4(3);	// Set interface to 8 bits
	delayms(5);  	// Wait for LCD execute instruction (At this point
			// we could actually start using the busy flag)
	write4(2);	// Set the display to 4 bit interface
	delayms(5);	// Wait for LCD execute instruction
	write8(0x28);	// Set the display to two line and ???
	delayms(5);	// Wait for LCD execute instruction
	write8(6);	// ???
	delayms(5);	// Wait for LCD execute instruction
	write8(1);	// Clear the LCD
	delayms(5);	// Wait for LCD execute instruction
	write8(0xf);	// ???
	delayms(5);	// Wait for LCD execute instruction
	return;
}

-Adam

On 4/3/06, kravnus wolf <kravnus@yahoo.com> wrote:
> I have written code for the LCD from bgmicro
>
> http://www.bgmicro.com/prodinfo.asp?sid=0968912037037037604814310&prodid=LCD1022&page=1&cri=lcd&stype=3
>
> I managed to get it started and printing characters on
> it. What grips me is that if I reset the PIC through
> MCLR quickly and numerous times the LCD just prints
> blank! It seems that the LCD cannot handle quick
> restart over and over again. I am left
> clueless........
>
> Thanks,
> John
>
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