Arizona Picdem 17 User Manual



 2001 Microchip Technology Inc.

DS39024B-page 55

DelayFor18TCY();

E_PIN = 1;

// Clock nibble into 

LCD

DelayFor18TCY();

E_PIN = 0;

#ifdef UPPER

// Upper nibble 

interface

DATA_PORT &= 0x0f;

DATA_PORT |= ((data<<4)&0xf0);

#else

// Lower nibble 

interface

DATA_PORT &= 0xf0;

DATA_PORT |= (data&0x0f);

#endif

DelayFor18TCY();

E_PIN = 1;

// Clock nibble into 

LCD

DelayFor18TCY();

E_PIN = 0;

#ifdef UPPER

// Upper nibble 

interface

TRIS_DATA_PORT |= 0xf0;

#else

// Lower nibble 

interface

TRIS_DATA_PORT |= 0x0f;

#endif

#endif

return;

}