//FIR Filter Coefficients to Remove 50/60Hz and 100/120Hz from Signals
static const int16_t coeffs[9] ={ 5225,5175,7255,9453,11595,13507,15016,15983,16315};
#elsestatic const int16_t coeffs[12] ={ 688,1283,2316,3709,5439,7431,9561,11666,13563,15074,16047,16384};#endif
How do they generate the above coefficient numbers?
Typically these questions have little to do with Code Composer Studio (the development tool), as it does not have the mathematic tools for filter design. In this case Google is your friend:
https://ccrma.stanford.edu/~jos/sasp/FIR_Digital_Filter_Design.html
http://www.dspguru.com/dsp/faqs/fir/design
Regards,
Rafael