dodo_ur_4u
Newbie level 4
please help;i' trying to connect lcd in 4 bits mode on portb only and leave portb.0 empty because i need it for interrupt so i tried to modify file lcd.c
as follow
void
lcd_write(unsigned char c)
{
__delay_us(40);
PORTB = ( c & 0xF0 );
LCD_STROBE();
PORTB = ( ( c << 4 ) & 0xF0 );
LCD_STROBE();
}
but no output!!!!!!!!!!!!!!!!!!!!
as follow
void
lcd_write(unsigned char c)
{
__delay_us(40);
PORTB = ( c & 0xF0 );
LCD_STROBE();
PORTB = ( ( c << 4 ) & 0xF0 );
LCD_STROBE();
}
but no output!!!!!!!!!!!!!!!!!!!!