Putchar() Getchar()

[Pheetuz]

I am having a go at teaching myself C, I am using MicroChips IDE and their C18 compiler for this.

I have tried using the putchar() and getchar() command for a very basic program that displays whatever key you press on the keyboard. The program is a program that I know I have run before on codewarrior IDE but it does not seem to want to work on MPLAB.

Is this because a PIC would not have these functions built into them and as such the compiler wont let me use them ??

When I try to compile the program, it says "Cannot use a function without declaring a function prototype". I was under the assumption that the prototype would be in stdio.h ???

Many thanks.

Pete

 

[millwood]

I was under the assumption that the prototype would be in stdio.h ???

maybe you should verify if that assumption is faulty?

 

[malik_zohaib]

these function are used to get the character and to display at monitor screen. micro-controller programming is little bit different. what you wanna do???
to get key and display it; first learn how to interface lcd and keypad with micro-controller, then write the code. putchar() and getchar() does not work in micro-controller programming. {although you have built-in library functions like lcd_out() and get_press_key() in mikroc.}

 

[Pheetuz]

Ahhh, thanks ... Yeah i thought that might be the case, not realy that bothered about the putchar and getchar commands as such, just learning from a book and was worried that the book might be erronious.

Will have a look at getting another IDE / compiler thats not designed for a microprocessor and have another ***** at it.

Cheers guys.