AWR1642BOOST: Debugging using Log_print

Hi, 

I am working on AWR1642. 

I want to use Log_print() in file dss_data_path.c.

I added following lines in dss_data_path.c

     #include <xdc/runtime/Log.h> 

     #define Diags_ALL (Diags_Mask)0xFF9FU

In one of the function I have to use Log_print1();

When I use the following:

Log_print1(Diags_Mask, "%d", maxIndices[0]); 

I get an error saying :

#20 identifier "Diags_Mask" is undefined dss_data_path.c /mmw_dss_16xx line 769 C/C++ Problem

When I use:

Log_print1(0xFF9FU, "%d", maxIndices[0]); I do not get any error.  

Can I know what this value: 0xFF9FU  is?

 Where can I see the output.? I cannot see it on the console.. Are we doing something wrong? 

Help me with my silly queries.

Regards,

Arifchand.