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code optimation and sprintf problems

Question asked by Matias Ferrari on Jun 5, 2015
Latest reply on Jun 5, 2015 by Matias Ferrari

Hi to everyone,


I'm working with Kinetis K05Z32 on Codewarrior 10.6 and I have some problems.



First, the code is so longer that it is not enter in its flash, so I thought in optimize the code (without debug). But, to my surprise, the behavior is not the same as the code without optimizations.



Second, when I was trying without optimizations, the behavior of "sprintf" function was very strange sometimes. It seems (in fact happened) sprintf changes other variables values, sometimes. I had big buffers, so I believe that it was a problem of heap or stack because the behavior change when I modified some lenght of these buffers.



So, I'm a little scared because I believed that optimizing code I will solve the size flash problem...



Thanks to yours comments