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Compiler/TMS320C5517: sprintf/ snprintf issue

Part Number: TMS320C5517

Tool/software: TI C/C++ Compiler

Hi. I'm jeongtae from south korea.

I'm using the TMS320C5517 EVM board. 

My problem is that if i use the snprintf or sprintf function, it stop the code operation.

I read about this snprintf sprintf issues in TI forum, i changed the stack and heap size as 1024 and 3072.

However it also did't work.

I test some case. 

First, if i make a new project for sprintf or snprintf function, it  naturally work fine.

Second, if i worked without sprintf or snprintf function in my code, it also work fine.

 Third, if i used another variable type(int, float), every type did't work.

What is wrong?..