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TMS320F28377D: printf floats or doubles

Genius 12760 points
Part Number: TMS320F28377D

Customer attempting to use the printf functionality on my F28377D control card and is running into a problem with printing floats and doubles. When he tries to printf a float or double the processor enters and infinite loop.
 
I have attached an example CCS v6.2 project. test_float_printf.zip He tried using CGT v16.9.2.LTS and v17.3.0.STS. When he runs the application on F28377D the "hello world" line is printed but neither of the float or double are printed.
 
I would welcome any help.

Regards,
Bernd