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constant name instead of pin address

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rezaf

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Hi;
how can I give separate name to every pin, instead of repeating it's address (in C language and in mikroC pro for PIC compiler)?
for example led1=1; instead of PORTB0_bit=1; .
 

You can use #define for a constant or a macro

#define led1 PORTB0_bit

After that whenever you write led1 it will be the same as PORTB0_bit

Another macro you can use is

#define led1on PORTB0_bit=1;
#define led1off PORTB0_bit=0;

in that case all you need to write is led1on to set the bit (PORTB0_bit=1) and led1off to clear the bit (PORTB0_bit=0)

You can take a look at
Tutorials - C Preprocessor Tricks - Cprogramming.com
 

    V

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Very thanks, the second method you said worked but the first method give error in compiler . I written :
Code: 
#define tx_l RB7_bit;

void stop(){
 tx_l = 1;
 UART1_Write(0x53);
 tx_l = 0;
}
void main(){
}
with this code, the compiler give error in tx_l = 1; line. what is wrong?
 

Is RB7_bit defined and what does it represent?

In the previous post you asked about PORTB0_bit , are you sure that they can both be used?

If you use RB7_bit=0; in your code does it work?
 

you have a ; on the end of
Code: 
#define tx_l RB7_bit;
which will replace occurances of tx_l with RB7_bit; giving
Code: 
void stop(){
 RB7_bit; = 1;
 UART1_Write(0x53);
 RB7_bit; = 0;
}
void main(){
}
remove the ;
 
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    rezaf

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sorry I wrongly written PORTB0_bit . in mikroc pro has TRISB0_bit and RB0_bit.
yes if I use RB7_bit=0; it takes this pin to low state.

yes horace1 the ; was wrong at end of line and with deleting it the problem resolved.

Thanks "alexan_e" and "horace1" for yor answers. you very helped me.
I go to test my program.
Best Regards.
 

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