Und weiter geht's,

das 3x16 Zeichen Display mit Portexpander PCF8574 will auch noch seinen Bascom Code:
Code:
$regfile = "m16def.dat"
$crystal = 15000000
$baud = 9600

$lib "Lcd_i2c.lib"                                          'I2c driver for the LCD
Config I2cdelay = 1
Const Pcf8574_lcd = &H4E                                    'Defines the address of the I/O expander for LCD
Config Scl = Portc.0                                        'Configure I2C SCL
Config Sda = Portc.1                                        'Configure I2C SDA

Dim _lcd_e As Byte                                          'Needed to control 4 line LCD
Enable Interrupts

Config Lcd = 16 * 3                                         'configure lcd screen

I2cstart

_lcd_e = 128                                                'Upper half of 4-line display is selected
Cls                                                         'clear the LCD display
Lcd "Hello world."                                          'display this at the top line
Wait 1
Lowerline                                                   'select the lower line
Wait 1
Lcd "Line 2"                                                'display this at the lower line
Wait 1
_lcd_e = 64                                                 'Lower half of 4-line display is selected
Lcd "Line 3"
Das Blöde ist nur - es wird am Display nichts angezeigt. Kann mir jemand sagen, why???