simple Problem with printf ?

Eugen Frick

Intellectual 370 points

Other Parts Discussed in Thread: TMS320VC5509A

my Code Composer Studio 5 just give me one printf if i try to use more, just the first come!

#include <stdio.h>

int i;

void main(void) {

for( i = 1; i < 10; i++)
printf("i: %d \n", i);

}

Output on Console: i: 1Ý“Ž’§i€’i€’i€’i€’i€’i€’i€’i€’

#include <stdio.h>

void main(void) {

printf("Hallo World!");

}

Output on Console: Hallo World!

do i mistake in my configuration???

over 13 years ago

0 AartiG over 13 years ago

TI__Guru**** 173310 points

Which specific version of CCS are you using (check in Help->About)? And which target device are you running the code on?

The first thing I would suggest is to try increasing your heap size and see if that helps (http://processors.wiki.ti.com/index.php/Tips_for_using_printf#Heap_Size)

0 Eugen Frick over 13 years ago in reply to AartiG

Intellectual 370 points

Hi,

im using the CCS v5.2.1.00018 and the programm is running on TMS320VC5509A on the EVM form MMB0

i checked the Heap_Size, its like in the Wiki 0x400 nothing happens if i rise it to 0x800.

0 AartiG over 13 years ago in reply to Eugen Frick

TI__Guru**** 173310 points

Did you try increasing the stack size as well? I don't have a C509A EVM to test with, but I did try it out with a C55x simulator included with CCS5.2 and was able to get the expected results out of printf with a stack size of 0x800 and heap size of 0x800 for the following code:

#include <stdio.h>

int i;

void main(void) {

for( i = 1; i < 10; i++)
printf("i: %d \n", i);

}

0 Eugen Frick over 13 years ago in reply to AartiG

Intellectual 370 points

thx, that was the mistake!

stack size from 0x200 change to 0x800 and now it works!

thank you!

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simple Problem with printf ?