Libraries

[Aaron]

I am using the Keil V3 IDE to switch I created a function that helps me set the cursor on the 20×4 LCD.

The function is called Setcursor(x,y) to which x and y correspond to the position on the LCD. 

Can someone please help me/guide me into making this function into a library?

Function code to anyone who wants to use this in his projects.

sbit RS=P2^0;

sbit RW=P2^1;

sbit E=P2^2;

sbit sw=P2^4;

 

bit on=0xff;

bit off=0x00;

void SetCursor (int x, int y)

{

RS=off;

if(y>=5)

{

y=4;

}

 

if(x>=20) 

{

x=19;

}

 

if(y==1)

{

int i;

int Line1=0x80;

for(i=0;i<x;i++)

{

Line1 += 0x01;

}

P0=Line1;

E=on;

delay();

E=off;

delay();

}

 

if(y==2)

{

int ii;

int Line2=0xC0;

for(ii=0;ii<x;ii++)

{

Line2 += 0x01;

}

P0=Line2;

E=on;

delay();

E=off;

delay();

}

 

if(y=)

{

int iii;

int Line3=0x94;

for(iii=0;iii<x;iii++)

{

Line3 += 0x01;

}

P0=Line3;

E=on;

delay();

E=off;

delay();

}

 

if(y==4)

{

int iv;

int Line4=0xD4;

for(iv=0;iv<x;iv++)

{

Line4 += 0x01;

}

P0=Line4;

E=on;

delay();

E=off;

delay();

}

 

}

 

void delay(void)

{

int i;

int l;

for(i=0;i<25;i++)

{

for(l=0;l<255;l++)

{

}

}

}

 

 

[Ashutosh Bhatt]

to set line the code is 0x80 and0xC0

to set column you have to set number from 0 to F like 0x81, 0xC4 etc

read the LCD datasheet for furthur information

[Author]

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