Classic/Legacy CodeWarriorのトピックRe: Simple Printf on CF question

Simple Printf on CF question

dvona — Fri, 24 Feb 2006 05:56:42 GMT

I'm trying to do a simple print of a floating point number out of a UART, and cannot figure out why I can’t seem to use a printf statement to display floating point values? For example

printf("\ntest printf with float = %5.2f", 1.23456);

results in just the letter “f” printed from hyperterminal: test printf with float = f.

Is there something I need to do because I am not on a floating point machine to enable printf to print floats?

Re: Simple Printf on CF question

CrasyCat — Tue, 28 Feb 2006 19:29:21 GMT

Hello

It works for me.

Which version of Codefire tools are you using (V6.2, ...)?

Did you include the file stdio.h at the beginning of the source file?

Which runtime libraries are you linking to your application?

For which CPU are you generating code (MCF5282, ...)?

CrasyCat

Re: Simple Printf on CF question

nanoGeek — Fri, 21 Apr 2006 05:02:05 GMT

Make sure your project is not using a simpler version of printf (printD and/or printk). One of the projects I have imported in the past (dbug for CF) uses printD which calls printk (which has no floating point support) with a #define printf printD.