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printf problem using TMS320DM8168, please help me,thank you!

Hi,

I'm using TMS320DM8168 and I've encountered a printing problem (for C6runlib is used: some source file is processed using DSP while the rest on ARM). When I add printf statements in source file,  the outputs are garbled text instead of what I typed (or the variable value I expected).

The printf statement is like: printf( "%6.3f seconds used is :", ((double)stopm-startm)/CLOCKS_PER_SEC);

May I know the possible reasons and solutions for this? Thank you very much!

Regards

Guocong