How to add library function to keil library ?

[bikas.bikun]

i want to add a function let delay.h to keil library, so hoe can i do so ?

can any body do this ?

please tell me the procedure.

 

[ckshivaram]

you can del\velop codes with different header files example
for LCD routine develop lcd_init(), lcd_delay(), lcd_clear(), lcd_data
for i2c routine develop i2c_start(), I2c_write(), i2c_read(), i2c_ack(), i2c_stop() etc like this

---------- Post added at 09:46 ---------- Previous post was at 09:38 ----------

let say we want to make a header file for an lcd then

LCD.h file will have

#ifndef __LCD__ // it check that is this name of file exist or not if not exist
#define __LCD__ // then genrate a file else not generate
now in headerfile u can do a lot of things every type of definations lest say port and bit assignment for LCD
typedef unsigned char bit_8;

#define lcd_port P1
sbit rs=P3^5; // register select is port 3.5
sbit rw=P3^4; // read/write is port 3.4
sbit en=P3^3; // enable is port 3.3
sbit d7=P1^7;

Function Prototypes
void ini(void);
void command(bit_8);
void data_in(bit_8*);
void busy(void);

some macros

#define DISABLE_INT IE=0x0;
#define ENABLE_INT IE=0x81;

#endif

now u can create a c file coding that uses these definations let say that is lcd.c
So lcd.c will have
then that file contains functions body
for examole

#include "LCD.H"

/*--------------------------
*** initialising the LCD ***
--------------------------*/

void ini()
{
command(56);
command(12);
command(1);
command(6);
command(0x80);
}

/*----------------------------
*** checking the busy flag ***
----------------------------*/

void busy()
{
d7=1;
rs=0;
rw=1;
......
}

and other functions of your program

 

[bikas.bikun]

I got to create a header file, but where to place it and add it to library, and where its (Lcd.c) file will be stored?

I mean what procedure I need to follow to add this header file to add to KEIL library, so that further I can include this file in my projects code.

 

[ckshivaram]

you cant add it to keil library. in the project window you have to add these header files and maintain it in the same folder.....

you can just create a user library....

you can also put it in the header files folder you see in the C:\Keil\ARM\INC or in in the uv2 library..

 

[bikas.bikun]

actually i have kept that in the C:\Keil\ARM\INC location,but while i am trying to use the function i can't.

can you please tell me why so ?

 

[ckshivaram]

what error you get? give the path of the header file in the C file...........