Can somebody tell me how to correct my code to send a pointer instead of the string? I'm not very good at dealing with pointers.

First of all, in 'C', any string is a pointer. Given your code below:

char numstr[10];
unsigned long num = 500;
sprintf( numstr, "%lu", num );

The variable numstr is technically a "string pointer." It's commonly called a "string" for short. But whenever you refer to a string you are actually working with a pointer that points TO the string.

That said, I just compiled the above code in Microsoft Visual C++, Keil Software uVision2, and IAR Embedded Workbench and the above code works in all of them.

I really can't imagine why the above wouldn't work under Tasking and, unfortunately, I don't have the Tasking compiler here so I can't test it.

The code is very straight-forward 'C' and works under the three compilers I tested with--two of which are 8052 compilers.

Regards,
Craig Steiner