What does this #define do?

[baberjaved]

What would this line actually do? Can someone explain in words

#define TGLCD_DATA output_low(PIN_A0);

 

[Nigel Goodwin]

It will simply replace every occurance of "TGLCD_DATA" in the program with "output_low(PIN_A0)" - which isn't PIC assembler?.

 

[baberjaved]

and What does this output_d() command do?

 

[Nigel Goodwin]

and What does this output_d() command do?

As you don't mention what processor it's for, what language it's supposed to be, and specifically which compiler it is, how are we supposed to know?.

 

[baberjaved]

its was for PIC-C... anyways its used for writing something to PORTD... so output_d() is used to output something on PORTD

 

[BeeBop]

Hi baberjaved,

Looks like you need to learn your compiler. This is directly from CCS help file:

output_d (value)

Parameters: value is a 8 bit int

Function:
Output an entire byte to a port. The direction register is changed in accordance with the last specified #USE *_IO directive.

Examples: OUTPUT_B(0xf0);

Example Files: ex_patg.c

You can find the flie ex_patg.c in your examples folder. Hope this helps.