Thread: Writing a Variable as a string input to a function

Hi

I am currently trying to write c++ for the arm 7t using Metrowerks Codewarrior.

The issue im having is that the function to enable me to write via a COM port
connected to the arm7t only accepts strings.

for instance the function call would be

Code:

 serial_print (COM0_USER, "you string here");

where com0_user is to define the port being used. This would then display that message on say windows terminal running on a host pc.

I need to use in in a similar way to say Cout. i.e being able to send a result from a calculation performed to the screen. Any ideas??

This is the deffinition of serial print:-

Code:

void serial_print (unsigned port, char *s)

{
	while ( *s != 0 ) {
		switch (port) {
		case	COM0_USER:
		while ( TX_READY(GET_STATUS(UART0_BASE))==0);
		PUT_CHAR(UART0_BASE,*s++);
		break;
		case 	COM1_DEBUG:
		while ( TX_READY(GET_STATUS(UART1_BASE))==0);
	    PUT_CHAR(UART1_BASE,*s++);
		break;
		}
	}	
}

Any suggestions or ideas would be welcomed, thanks all for your help

thankyou, i shall try that now;

Ok, ive looked into that and it looks like a feasable solution but i would like to do it the following way if possible (again need help please)

I want to make a new function called

Code:

void serial_print (unsigned port, x)

where the x value could be either an iteger or a string.
could anyone help me write this?

i would only need it for COM0 so the code above can be simplified to

Code:

void serial_print (unsigned port, *x)

{
	while ( *x != 0 ) {
		
		while ( TX_READY(GET_STATUS(UART0_BASE))==0);
		PUT_CHAR(UART0_BASE,*s++);
                        }
}

know i dont know how to implement it so it will write the full variable any help greatly appreciated.