The dlbf_data_check_ram and dlbf_coeffs_check_ram functions are called. These functions are optional, but they are useful for debugging. In Module 03, the BRAMs in the dlbf_data and dlbf_coeffs PL kernels were initialized to input data stored in *_hex.mem data files. These check_ram functions ensure that the dlbf_data and dlbf_coeffs RAMs have been initialized to the correct values. The golden input data is stored in the dlbf_din.cpp and dlbf_coeffs.cpp files.