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printf statement

Greetings,

I'm "attempting" to use the printf statement within my main code. Currently I'm seeing nothing out.

My processor is a Dallas DS80C320. This has two serial port. - sbuf0 and sbuf1.

Is there anything I need to do regarding printf - meaning when I'be used an "8051" printf worked and went to sbuf. What tells the code to direct it to sbuf0.

I have started with older code - again - printf worked with an 8051. I'm purely guessing that somewhere I need to tell it to rename from sbuf to sbuf0.

I notice within the include stdio.h file I see:
extern int printf (const char *, ...);

Help

Thanks
-Sparky

Parents

0 Andy Neil over 16 years ago

Note that printf isn't a statement - it's a function.

Have you looked at the description of printf in the C51 Manual?
It tells about the default low-level output driver, and where to find the source to modify to your own requirements:

http://www.keil.com/support/man/docs/c51/c51_printf.htm

Also, the "Hello, world" example program demonstrates the use of printf...
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0 Andy Neil over 16 years ago

Note that printf isn't a statement - it's a function.

Have you looked at the description of printf in the C51 Manual?
It tells about the default low-level output driver, and where to find the source to modify to your own requirements:

http://www.keil.com/support/man/docs/c51/c51_printf.htm

Also, the "Hello, world" example program demonstrates the use of printf...
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Vote up 0 Vote down

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