Hi !I have designed a filter in MATLAB with the fixed coefficients, and simulink is pass ，meet the requirements。So export the fixed coefficients to fir compiler v9.1 , set the Structure Type to Fully Parallel Filter。 When run in FPGA，the results of filter output is different from matlab , Error will increase when the data is large. thanks for reply
Hello,What are your filter settings? (coefficient bitwidth, scaling, output bitwidth etc.) Grt, Olaf
Hi， OlafThe coefficient has been exported fir compiler v9.1 , So I set scaling options for "none" ，the same as MATLab。 output bitwidth is “full solution”。
Did you check the errata for the fir compiler? perhaps this is a known issue and already has a workaround..