Lcd

[savnik]

Thank you for your answer.
PIC clock is 4 MHZ. Sometimes only when power up the pic the Lcd is not show correct.

[mister_e]

you may need to add a LCD start up delay. Something between 500mSec to 2Sec in worst case.

Be sure that your PIC don't have any Analog stuff on the pins you're using. If so, you must disable it.

That could be the issue

[savnik]

you may need to add a LCD start up delay. Something between 500mSec to 2Sec in worst case.

Be sure that your PIC don't have any Analog stuff on the pins you're using. If so, you must disable it.

That could be the issue

MY code is:

DEFINE LCD_DREG PORTB 'Selection of the port B
DEFINE LCD_DBIT 0 'Selection one RB0 with RB3
DEFINE LCD_RSREG PORTA 'RS on port A
DEFINE LCD_RSBIT 2 'RS on RA2
DEFINE LCD_EREG PORTA 'E on port A
DEFINE LCD_EBIT 3 'E on RA3
DEFINE LCD_BITS 4 'Mode 4 bits
DEFINE LCD_LINES 2 '2 lines

ADDR1=$C2

PAUSE 100

LCDOUT $FE, 1 ' Clear LCD screen
LCDOUT "TUNER VHF - UHF" ' post text during 2 second
LCDOUT $FE,$C0
LCDOUT " LESVOS "
PAUSE 2000



EEPROM 0,[$0,$0]

How to add start up delay for the LCD;

[savnik]

any help ;

[Rob]

How to add start up delay for the LCD;

It REALLY is as simple as what Mister_E said... where you have your "pause 100" command at the moment, change it to "pause 500". This SHOULD allow enought time for the LCD to settle. If this still does not help, change it to "Pause 2000" and try that. If that still does not work, your problem is unlikely to be LCD settle time. Post back if these do not work

Regards

Rob

[mister_e]

also we don't know your PIC model, it can have analog stuff on any port. If they're not disabled .. it will never work.

[savnik]

also we don't know your PIC model, it can have analog stuff on any port. If they're not disabled .. it will never work.

I use pic16f84a and pic16f628a